Aquaculture Technology - Fishfarming & Equipment

Quality to reasonable prices!


Netcage Systems

MODULAR FLOATING DOCK SYSTEM for aquatic sports and aqua culture

Maritime Technic - Pontoon System25 years experience in "state of the art" flotation engineering worldwide, together with cutting edge technology and the most advanced production techniques are the base for the new, extremely versatile "Pontoon Building - Block System". By utilising the friction co-efficient achieved by independently controlled flooding of the modules we have refined this system to provide not only the most stable floating platform available, but also a high load capacity, which can also be combined with a fender-sidebar system.
The individual modules are easy to handle (weight: 6.2 kg) and have a very high load capacity of 360 kg/m2 (=75 lbs/sq ft). They are made of a high-quality synthetic, UV-stabilized and anti-static material (green or blue), which is extremely resistant to the elements. Individual blocks measure 50x50x50 cm (1.65x1.65x1.65 ft) and the standard freeboard is approximately 40 cm. Blocks are easily assembled (with an assembling wrench) by joining the connecting lugs with bolts that give a secure and stable connection.
These building blocks can be assembled to meet any desired layout or dimensions, and can be used to replace or extend existing pontoon systems. This seawater- and acid-resistant system requires no maintenance or cleaning and is extremely durable. It can be utilised throughout the year or the modules can be stacked and stored. Unlike closed floats, this system does not blow up in the sun and is resistant to attacks from Teredinidae.
Unlike conventional wooden floats, the pontoons are made of a skid-proof material, and will not rot or develop sharp edges, or expose rusty nails etc. The "Maritime Technic - Pontoon System" contributes to water purity and is aesthetically pleasing. It has lugs (ears) along the sides where different accessories can be fitted and anchoring systems attached.
Swimming ladders safety rails, anchor fastening and and boat -mooring-eyes are the main accessories, with options such as side screws and bars as well as fenders, ropes and anchors. If needed, access ramps and gangways can be produced to the customer’s design. For marinas electricity distributors (w/wo illumination) and water supply-systems are available.

More Info and Photos

CIRCULAR NETCAGES for all conditions

Circulare NetcagesWe supply a wide range of single, double and triple ring cage collars, using black high density polyethylene (HD-PE 80-100) pipes in sizes from 200 to 450 mm Ø, optional mounted with either dip galvanized steel or injection moulded plastic brackets (mounted usually every 2-3 m). All build with heavy gauge handrail and upright pipe (110-160 mm Ø) to resist deformation. The tailormade circular cages with a diameter from 10-60 m (32-189 m circumference) can be prepared for all types of weather and sea conditions from seabay to offshore sites. A safety chain inside the outer pipe ring and dividing plates welded inside the inner pipe ring, are available for safety reasons. A full circumference walkway decking is available optionally. A bird net stand, a dead fish collector and sinker tube pipe are available as accessoire. The cage pipes are shipped in parts and are welded on site.

Traditional square cage systems of any size are produced with our pontoon system



This cages are developed for industrial farming of various fish species (i.e.: Sea bass, Sea bream, Grouper, Salmon, Trout, Sturgeon) all the year round at exposed open water areas such as seas and oceans. To prevent damage from storm impact and to provide optimum conditions for fish farming, the cage can be submerged.
Completed with a painted or galvanized framework with a net chamber enclosed and a feed bunker on it allowing automatic feed supply and farming process supervision. To place the cage vertically, it is equipped with a special system providing its surfacing, submerging and positioning at a depth of 4-40 meter. Horizontal positioning of the cage is provided by the system of anchorage including anchor ties and anchors. Lightness and tracery of the cage are in full accordance with the sea landscape.
The cage structure is produced to the "Rules for Building and Classing Underwater Vehicles, Systems, and Hyperbaric Facilities" and passes control assembling and testing at the manufacturing plant. It will have the certificate of the official "Maritime Register of Shipping". The steel work is marked and packed as packages or in boxes which can be transported in a standard 40-feet container.
The basic material of the (polygon) framework consists of rod welded tubular low carbon (grade A) steel elements, connected with each other by flange bolts. The three-dimensional framework forming a regular nonahedron in plan, with three slanting trusses, running from the vertical columns to the geometric centre, closing at the feeder casing. The upper contour is completed with service platforms, passage walkways (500 mm wide) with railings (1.000 mm high) and removable hand ropes, also to the feed bunker. The walkways and brackets are made of pipes with 120 mm in diameter. The vertical columns (720 mm in diameter, 2.250 mm long) house permanently buoyancy compartments, balancing tanks, and compensation tanks of residual buoyancy resulting from discharge of changing loads. Also sensors that measure depth of submergence, water temperature and underwater acoustic are housed there. The 5.980 mm long horizontal members of the bottom contour are made of pipes with 478 mm in diameter and house the main ballast tanks and compressed air cylinders, 6 of which are ballast compartments and 3 are compressed air cylinders. Three mooring walls with wooden guard rails are provided for service boat mooring. To provide for safety of work of the attending personnel, the cage is equipped with removable single row life-lines. The shape of the whole structure and all separate sections are adjusted so that the cage experiences minimum rolls and trims at waves and current. The experience of the underwater system operation has proved that the operation in the water column is the most effective structural measure to protects structures from corrosion. Hot galvanized coating provides the structure service life of more than 20 years. This coating is reliable, practically excluding restoration and repair.
The system of automatic underwater feed distribution is intended for storage and measured distribution of feed for an autonomous operation of 7-30 days and located at the geometric centre of the cage. The system consists of a water tight bunker of 3.000 litre (2 tons feed in average) of cylinder conical shape (1.412 mm in diameter and 2.890 mm in height) and an automatically feed distributor (with a microprocessor) with a volumetric type dosage of 5 litre each. Compressed air is supplied to the pneumatic device by pipelines from compressed air cylinders, which are replenished from a service boat, equipped with a compressor. To prevent water penetration into the feeder, its upper part is equipped with a water tight hatch with a rack-and-pinion lock. Inside the feeder the upper part houses solenoid valves, system controller and (24 Volt, 125 Ah) batteries. The system is made of corrosion proof steel (6-8 mm thickness) and non-ferrous metals.
To submerge and surface the cage it is equipped with ballast compartments. The main ballast tanks are filled by gravity via drain holes equipped with ventilating valves with a remote control pneumatic drive. The balancing tanks are filled via kingston valve. The water from ballast compartments is replaced by compressed air (5-10 kg/cm3), supplied from the service boat compressor (min. 150 l/min). Air to the actuators is supplied through the pipelines made of corrosion proof steel and rubberized hoses. The process of submerging and surfacing is supervised by the depth sensor, its display being located at the service boat or via water acoustic communication channel from the shore.
The signal buoy consists of cylinders of variable sections, providing a platform for deployment and protection of the control and monitoring complex of the cage. The size and weight characteristics are adjusted to provide survivability in the regime of extreme weather conditions. It can operate afloat at wave (force 8-9) and respective wind speed. It also can freeze in ice (up to 50 cm) to stay for winter. Flexible pipelines and electric cables coming from the signal buoy to the cage and supplying compresses air and providing power supply. Additionally the buoy includes the antenna for an underwater acoustic control and monitoring system with an operation range of 10 km. Safety is provided by flashing beacons and corner reflectors, also from the feed bunker.
To install the cage at the water area (in a depth of up to 50 m), it is equipped with a special system of anchorage, consisting of anchor ties (i.e. a chain with a variable running mass) and 3 anchors (weighing 3-10 t), providing reliable functioning of the system under weather conditions given. The anchors are not included in the delivery, but are made on site (by the customer according to the drawings given). The anchorage system is designed for each particular site depending on hydro-meteorological conditions and depth of an installation site.
The net chamber with a volume of 1.000 to 2.000 m3 is preferably built from our polymer covered polyester net (mesh size 20, 25 or 40 mm) but could be changed to a kapron or nylon net too. The net chamber is placed within the steel structure at special guy ropes, running up and down from the platform. The guy ropes are fastened to the feed bunker and the net chamber. To provide for harvesting of fish, the net chamber is equipped with a device, consisting of a rope system and portable hand operated winch, raising the bottom edge to the surface. To remove wastes from the net chamber it is equipped with a special tray device which is lifted to the surface by the help of winches.
It is possible to position the cage system in a depth range in the water column of 4-40 meter. Afloated the system withstands waves (with personnel to force 3) without personnel to force 6 and waves up to 6 meter. Submerged it is resistant to force 9 and respective wind speeds and waves up to 8-9 meter. The axial diameter is 20,12 meter and the light displacement is 16,2 tons. Total height (including 2.000 m3 net chamber) is 12,1 meter, the minimum draught (at launching) is 0,8 meter and the maximum draught (including 2.000 m3 net chamber) is 8,6 meter.

ILLUMINATED NET CAGES for the fingerling production with natural zooplankton

Illuminated submerged cagesystem20 years' experience in the field of global plankton research and fingerling production with natural plankton and years of tests under different environmental conditions in marine and fresh water, are the basis of the new "UWG- Solar cage system". The production method is based on plankton feeding in the natural environment like: lagoons, bays, fjords, lakes and large ponds, by means of attracting the organisms using a lamp located in the centre of fine meshed submerged nets. Mainly Copepods and Cladoceres - but also a variety of other zoo plankton are photo sensitive and steadily swarm into the cages towards the light source. The net cages 2x2x2 m (8 m3) are manufactured from highly resistant mono filament polyester fabric (with mesh sizes 0,3 to 1,8 mm), is fitted with a zipper for easy access and a conduit for the electric cable. The net cage is stretched onto a strong stainless steel or aluminium frame. An efficient solar generator is supplied for remote site operation. An electrical transformer can be supplied in order to reduce voltage to safer levels for use with water. Depending on the zoo plankton populations, the fish stocking density (from the fry stage to fingerling size of 5 cm length) can come to 5.000 Ind./m3 and survival rates of more than 90 % have been achieved with various marine and freshwater fish species.
Operation and maintenance is limited to: the functional control of the system, a periodic cleaning with a portable high pressure cleaner, in order to prevent clogging effects caused by detritus, algae and faeces, and the observations of the plankton development in the location. The system is environmentally safe since: no feeds or fertilizer are applied, the construction materials are inert, and the plankton consumption is minimal and does not affect the natural stocks.

UNDERWATER LIGHTS to increase growth and delay maturity

Underwater lightUnderwater lights are used sucessfully (24 h/day) to delay maturation and increase growth in several fish species (like: Salmon, Trout and Cod etc.). in both sea- and landbased farms. This special submersible waterproof (IP 68) lights are made according to IEC and CE standards and are DEMKO and NEMKO approved. The socket of the special lamps is base E40 and the glass lens has a thickness of 5 mm. They have been tested at independant laboratories and light distribution files are used for calculating distribution in cages and tanks. The light intensity is 70-90 lm/W, the light current is 80-90000 lm and the colour temperature 4000-5000 K. They have dimensions (Length x Diameter) of 565 x 130 mm, a weight of 12,5 kg and are delivered with 20-40 m fixed marine cable (3 x 2,5 mm²) and are available in two power ratings (400 or 1000 W, 3,2 or 5,5 A) for a voltage of 230 V/50 Hz.

NET CLEANING SYSTEM with high pressure

Dual head netwasher in useThis netcleaners maintain a flow of oxygenated water through the nets, that keeps them clean with minimal disturbance and no need to remove the fish from the pens. It's construction and design make the washers head working toward the net against its own high pressure water stream and can be used on all types of nets and cages. The netwasher loosen and pulverize, with its high pressure waterstream, algae growth, food remains and other fouling, which in turn will drift away by the current. The single head disk is easily used, the dual head disk is for faster cleaning.
The fuel driven pressure pump with high output drives the head of the netwasher disk or can be used for pressure washing. It can be operated by one man from the boat or walkway/collar or underwater by a diver.  Alternatively a hydraulic power pack for workboats is available, which is permanently installed with all the advantages of hydraulic drive, useful for pressure washing on boat and cages.


Polyester Nets (PVC-covered) MS 5-40 mm

This special polymer coated polyester net is very strong and stable, but also flexible. The nets are 100 % stronger than conventional nylon nets, are highly UV-resistant, suitable for seawater and need no antifoulants. They need less maintainance and have fewer escapes than nylon nets. Nets having been in use for more than 20 years still look like new and save a lot of total operation costs! The material is available on coils with a width of 3,6 m with a mesh size of 5 mm, and 5 m wide with a mesh size of 20 to 40 mm. With a weight of 450 to 780 g/m2 the cages need no lead sinkers. We deliver finished cages or also the material on coils.






Square mesh size (open area)

40 mm

20 mm

5 mm


490 g

780 g

450 g

Tensile strength (ISO 53857) Warp/Weft

45 kN/m

90 kN/m

40 kN/m

Expansion force (ISO 10319)

20 %

10 %

15 %

All data on average (+/- 10 %).

NYLON NET MATERIAL for cages and fishery

Nylon Nets (knoted or knotless) MS 4-30 mmThe production is based on a complete process, from the raw material, passing the different manufacturing phases like: matching, weaving, cutting and packing. Our aim is to assure a quality product to the customer. Woven in high resistant nylon, all our nets are machine sewed with double rows of stitching. UV-antifouling protection or colouration, on request. The finished nets are delivered in any shape or size with a mesh size of 4 to 30 mm, or only the net material itself.

Seine Nets in two designs:
Seine net with bag - consiting of two wings and respective bag in between, for the catch of fishes in lakes, rivers and ponds etc.
Seine net without bag - consisting of a well vault single wall, for the harvest of fishes in ponds, raceways and tanks etc.
Both nets are complete ready to use mounted in strong rope with foam floats and lead sinkers.

Gill nets in two versions :
Single os tripple sheet gillnets with a mesh size of 6-150 mm, in various heights and lengths.
Both gillnets are available loose or mounted ready to use with lead and float line.

Trap Nets in two outfits:
Fish traps - with one trouth and three galvanized iron rings, as well as two wing nets each 1,5 m long.
Fish bags - with two trouths and five iron or plastic rings, as well as two wing nets each 2,0 m long or a 3 m long guide net.
Both nets are complete ready to use. Longer wing or guide nets with floats and sinkers are possible.

Cast Nets in two arts:
Traditional Art - the lower line with harvest bags, which catch the fish.
Yugoslavian Art - the lower border will be formed to bags by ropes during lifting.
Both nets are complete ready to use and have a circumference of about 7 m, a height of approx. 1,7 m and a mesh size of 11 mm as standard.

Scoop Nets in two forms:
D- or O-formed strong, corrosion free scoope frames (wide 40-70 cm) with protection and preparation for handle.
Both nets are complete ready to use mounted with net bag (mesh size 4-20 mm), and a handle (length 1,3 m) from hard-wood as accessoire.

We deliver also other nets in various sizes.

PRECISION CLOTHS for aquaculture and hydrobiology

Plankton nets in use Copepodes under 500 micrometer cloth

This fabric program includes precision sieves of different material strengths and offers a narrow mesh grading between 20-2000 micrometer and therefore fulfils all requirements of today's aquaculture and hydrological needs. Appropriate sieve fabrics are offered per running meter and as standard or customised products, such as filter-, dip-, hatching-, cage- and plancton-nets.
In Austria a catch of zooplancton for the production of fry and fingerlings is commonly practisized since more than 50 years. During the last years several important optimisations are archived allowing a better net construction and easy catching. With appropriate designed plancton nets, harvests of several tons per day can be achived. Thank's to this Austrian development of special sieve-net-systems, it is possible to grad the plancton in 3 different size classes during the catch. The result is the correct plancton size for all development stages from fish larvae to fry and fingerling. An expensive and complicated indoor-production of prey organisms (such as: Algae, Rotatoria, Artemia, Daphnia etc.) is not necessary.

SHADING SHEETS AND NETS to protect fishes

Shadding sheeds and protection nets (shadding value approx.: 85, 75, 65, 50, 45, 30 %)

Shades and nets are made from UV-stable polyethylene material with a shadding density of 30-85 % to protect fish and ponds from light and birds. The sheets which let water (from rain) to drain off, are available on coils from 1,5 and 3,0 m width and can be manufactured with extra strong hem and eyes. For pricing allways the width of the coil is calculated.

We deliver also bird protection nets with a mesh size of 15 - 150 mm.

TRAPS made of plastic material

Eel-trap 2-throutsCrayfish-trap 2-throats

This easy to handle and maintenance free plastic traps have been tested in practice and are suitable for both professional and sport fisherman. Features such as a new shape and correct colouring are the result of fishing expertises. A favorable price/performance rate ensures highest economy in use. Of course the traps are saltwater and corrosion resistant and also resistant to crabs and other pests. This traps (with exchangable components) have an inlet opening of approx. 42 cm and an integrated bait basket in the closed end cap. The traps are specially suitable for catching eels, but can also be used for other fish species as well as crayfish. This traps are delivered complete with plastic covered iron spits (12 mm Ø) for submerging, which guarantee that the trap is allways positioned with the upper closed side on top, which in turn created a protection shelter for the animals.

The following versions are available:

Eel-trap: 1-throats, approx. 1,0 m long, weight 2.4 kg
Eel-trap: 2-throats, approx. 1,5 m long, weight 4.2 kg
Crayfish-trap: 2-throats, approx. 0,6 m long, weight 1.0 kg

We also deliver trap nets and all other fishery nets.

ALUMINIUM BOATS for fisheries and watersports

Typ 230A - 350A - 480A Typ 610C

This multi-purpose boats are made of 1-3 mm thick seawater resistant aluminium, welded with modern technologies (WIG-Argon und Plus-ARC) and need no coatimng or antifouling. The integrated floats secure this boats are unsinkable.
As accessoire the following is available: Stand with steering, Build-in-tank, Electro-outfitings, Swimming ladder, Reeling and Persenning etc.
The smaller recreational boats TypA (from AlMg3) are made in multi parts and can be divided for transport (to 125x135x55 cm) or also extended on demand by additional boddy modules. They are verivied by Lloyd's Register in Hamburg and have the EU-conformity certificate (CE-Modul-D).
The larger working boats TypC (from AlMg4,5Mn) are made in single parts. They are verivied by Lloyd's Register in Hamburg and have the EU-conformity certificate (CE-Modul-C).

As standard the following types are available:

Type 230A 350A 480A 470C 610C 750C
Length 230 cm 350 cm 480 cm 470 cm 610 cm 750 cm
Width 135 cm 135 cm 135 cm 180 cm 180 cm 180 cm
Hight   48 cm   48 cm   48 cm   75 cm 75 cm 75 cm
Weight 45 kg 60 kg 80 kg 250 kg 300 kg 400 kg
Loading 200 kg 250 kg 350 kg 450 kg 600 kg 800 kg
Parts 2 3 4 1 1 1
Motor (max) 6 PS 10 PS 15 PS 40 PS 60 PS 80 PS

INFLATABLE BOATS for fishery and recreation

Modell S Modell P

This well designed and large dimensioned inflatable boats are build from a very strong (blue-grey) plastic material, according to requirements of todys customer preferences and use. The good quality workmanship and materials guarantee security and longlifety, also in seawater. The large diameter of the hose, the reinforced heck plates and the keel forms, allow the boats even with minimal motorisation and low speed, good gliding, high floating capacity and enormous stability. Security and safety is provided by the bars with broad profil on the sides and keel, by the valves situated inside, as well as by the security and holding ropes on top. The strudy handles situated outside and the self lenting valve inside rallow easy handling and working.
The models S of the "Sport Seria" (excl. 200 S) are fitted with a wooden floor with aluminium frame (aluminium floor on request), and strong switchable rowing supports with stackable paddles from aluminium. A wooden bank with fixing possibilities, holders for the persenning, bag and reperature sets are standard outfitts.
The models P of the "Professional Seria" are fitted with a fixed bottom hull made from glassfibre reinforced polyester with deep V-formed keel, an integrated driver stand with reeling and window, as well as single seat in the middle and doubble bank in the back. A selflenting anchor box and closable storing boxes are standard outfitts.
Packing bags, heck wheels, bathing ladders, seat banks (also inflatable) etc., are available as accessoire.

The following models are available as standard:

Model Length Wide Weight Hose Ø Chambers Motorisation Loading
200 S 200 cm 134 cm 24 kg 35 cm 2 max.   3 HP 260 kg
230 S 230 cm 134 cm 29 kg 35 cm 3 max.   4 HP 290 kg
305 S 305 cm 149 cm 45 kg 40 cm 4 max. 10 HP 470 kg
335 S 335 cm 149 cm 55 kg 43 cm 4 max. 15 HP 560 kg
380 S 380 cm 179 cm 69 kg 45 cm 4 max. 25 HP 670 kg
430 S 430 cm 192 cm 79 kg 50 cm 4 max. 40 HP 830 kg
460 P 452 cm 201 cm 220 kg 47 cm 5 max. 60 HP 630 kg
520 P 514 cm 230 cm 280 kg 52 cm 5 max. 60 HP 720 kg

ELECTRO MOTORS for boats and pontoons

Electro motors (shaft, screw and flange models)For boats, an electro motor is practicable for up to 9 m total hull lengths. Electric motors have, compared with petrol motors, different turning moments, which allow to use electric motors with relative low powers. Longtime experiments have proven, that the required power relation (electro to petrol motor) can be 1:2.0 to 2.5, if the pertol motor was not over motorisized for the boat and the use.
All models have a compensated row motor, which coiling compensation optimizes the energy usage and increase theoutput of the motor, specially at higher turns. The casings as well as all supports are made from marine aluminium (GalSi5Mg to DIN 1725, pp. 2), which is corrosions and seawater proof. All other materials incl. all screws are made from stainless steel. The ball bearings are made for long operation and live and the seals of the bearing are made form seal rings. All parts are covered by plastic or special paintings for additional protection. Motor and motor casings are also painted with antifouling. All parts are built with high precision and each motor will be tested to electric performance.

The outboard-shaft models have a weight of 19-21 kg and are delivered with integrated cable, switch and fuse. They are ready to use and just have to be mounted on the heck and connected with the cables to the battery. Available in 3 power sizes (500, 800 or 1.400 Watt) with 4 steps (2 front and 2 back) and with different staft lengths for various boat types.
The inboard-flange models have a weight of 15-35 kg and are delivered with complete cables, switch and fuse. They must be installed on the boat and are fitted with a pinn, where lenking ropes can be fixed. Available in 4 power sizes (800, 1.400, 2.000 or 3.000 Watt) with 4-6 steps (font and back).
A foldable propeller, which brings the wings into a position so that they doe not turn if the motor is not used, is available as accessoire.
Additionally, special batteries for long time use with high cycle stability, battery loaders, and (from 36 V on) a stepless motor regulation is available.

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Recirculation Systems

The requirement for seafood continually rises worldwide, and product is continually becoming more scarce. Aquaculture is a young, innovative part of economy with high growth rates and secure prospects. The future of fish production requires water to be used as economical as possible, and environmentally safe removal of waste products with lowest possible energy consumption. Demands of environment legislation reduce possibilities of open water fish production more and more. Already existing fish farms are confronted with directions for purification of their waste waters.
This accelerates the development of intensive, water saving systems for fish production which do not depend upon natural environmental factors. Production in a closed water systems offers more a compact growing environment for fish, low shared personal costs and good profits.
In such systems the waste water, which is loaded with metabolic by-products, is recycled through biological and physical purification and more than 90 % re-used. Through improvement of the re-circulation and filter technique we are able to offer an very efficient, easy and cost effective system for fresh and seawater. Risk minimization, process control and fish health are factors considered in our designs and re-circulation systems are produced in module-construction. Each module is an autonomous working system and is therefore the water is not transferred between modules. Depending on system size and customer wishes our systems will be supplied with modern measuring, regulation and security technique and working accessory. Depending on the requirements (production capacity, conditions and species) we offer generally two systems:

RECIRCULATION SYSTEMS for nursing and holding

The modules for nursery and holding are available for a yearly production-capacity of 1-2 t (125-250 kg standing crop) and consists of 2 square and 1 filter tanks with the needed technique and equipment. The water from the fishpools are cleaned through a particle filter to remove suspended solids prior to bio-filtration. The bacterial settlement for nitrification will develop on the packages of the reactor, mud will be removed through the current. Our bio-reactors have the gigantic settlement-area of over 900 m2 per cubic meter filter material and therefore we need only very small filter units. Through the introduction of fine air bubbles through a special aeration- and lift construction our systems work without pumps and therefore require less energy thereby reducing costs. Through compact construction, our systems can be installed any time and anywhere without rebuilding or extension expense. Aquaponic kits or hydroponic stes are available optionally.

Recirculation System

RECIRCULATION SYSTEMS for the intensive production

The modules for production are available for a yearly production-capacity of 50 t/year (standing crop 10 t) onward and allow our customers to get familare with the technique and topic without high risks. The water from the fishpools are cleaned through a drum filter to remove suspended solids prior to bio-filtration, where the nitrification process and the aeration with oxygen takes place. From there the water is pumped to the fishtanks, wich could be adapted to customer wishes in form, size and number. The use of UV- or ozone is planned. This system is available for all fish species (also salmonids). Beside consulting and planning we offer also training and service as well as the seed (fingerlings) etc.

HOLDING AQUARIA for fish and seafood

Holding aquariumAn aquarium should be seen as a complex grouping of elements functioning synergetically to maintain constancy of environmental characteristics, countering any variation whatsoever and simulating as far as possible the whole biological cycle that is present in nature and indispensable to the live of the aquatic animals. This professional range of aquariums are designed for holding of live crustacea or fishes at a working temperature of 10-30 °C and consists of double glass walls in which the two layers of glass are separated by a dry air gap. The aquaria are delivered as complete assembled units with ALU-frame and PVC-panels (70 cm high, colour: black) with cover and lights (IP67), external mechanical/biological filter, circulation pump and chiller with thermostate, as well as cable and plough. Energy consumption 680-1200 W.  The two larger systems are also available with two-compartment aquaria. Single wall glas aquaria (200-600 l volume) with stainless steel frame, on request.

The following models are available as standard:

Modell AT-70 AT-100 AT-150 AT-200
Size (LxDxH) 70x50x140 cm 100x50x140 cm 150x60x140 cm 200x60x140 cm
Aquaria volume 180 l 220 l 450 l 600 l
Holding capacity 5 kg 15 kg 25 kg 35 kg

Single wall glas aquaria (200-600 l volume) with stainless steel frame, on request.

HOLDING TANKS for molluscs and crustacea

Hälteranlage mit Filter- und Umwälzsystem

This proven (GRP) glassfibre reinforced polyester tanks (isolated with polyurethane) are specially suitable for the holding of crustaceea and molluscs (like: lobsters and clams etc.). The units are delivered complete with in the bottom integrated mechanical-biological filter (Lithothamnium calcareum) with pre-filter, titanum-chiller (R134) with digital display and thermostate, UV-C and recirculation system with PVC-pipes. They are build for a electric connection of 380 V/50 Hz (230 V on request) and a working temperature of 5-25 degree C.

The following models are available:

Type/Volume A660 B990 C1320
Outside dimensions cm 220x130x102 320x130x102 420x130x102
Inside dimensions cm 200x110x34 300x110x34 400x110x34
Holding capacity kg 70-140 110-220 150-300

Larger or stackable holding tanks, on request.

POLYESTER TANKS in all forms, sizes and colours

Circular basins in all sizes and forms! Rectangulare tanks in all sizes and forms!

This tanks have a long proven history (30 years) and are manufactured of (GRP) glassfibre reinforced polyester layers (450 g/m2). The conical forms, the funnel shaped outlets and the absolutely smooth inside finish ensure the system is practically self cleaning. Therefore it is possible to hold sensitive bottom fish or fish larvae too. The whole pools and especially the edging very strong, allowing attachment of automatic feeders or other equipment. The tanks are delivered in different shapes, sizes and colours. Optional laminated feet make it possible to place the pools safe on any bottom and ensure easy lightweight handling or transportation. The outlets are made from PVC - pipe (110 mm Ø) with water level regulation, which is fixed under the bottom and leaded at the tank side. A bottom or stand sieve is available as accessoire.


This pools (2-8 m diameter) can be placed in or on the ground and consists of a 0.4-0.7 mm strong galvanized iron wall which is painted inside and plastic covered outside. The lower and upper bottom- and hand-rails are made of strong plastic to ensure a long selflife. Inside the pools are lined with a 0.6-0.8 mm strong PVC liner with exact fitting in black or blue colour. If prefered we deliver also just the robust and soft PVC pond liner in a thickness of 0.5 to 1.5 mm in the colours black or green, on coils with a wide of  2-8 m and a length of 15-50 m, or as finished liners in any size.

The following sizes are available as standard:

Volume Diameter Hight
  2600 l 2.0 m 0.9 m
  8000 l 3.0 m 1.2 m
11000 l 3.5 m 1.2 m
18000 l 4.5 m 1.2 m
22000 l 5.0 m 1.5 m
36000 l 6.0 m 1.5 m
58000 l 7.0 m 1.5 m
75000 l 8.0 m 1.5 m

We deliver also just the robust and soft PVC pond liner in a thickness of 0.5 to 1.5 mm in the colours black or green, on coils with a wide of 2-8 m and a length of 15-50 m, or as finished liners in any size.

PRESSURE FILTER with cleaning technique

Pressure Filter UV-CThis compact prssure filters with integrated UV-C lamp (9-11 Watt for up to 9.000 hours) are complete filter systems with ecological threefold operation technic (mechanical/biological/optical), to solve all filter problems in garden ponds or aquarium tanks. An integrated user friendly backwash system allows an easy maintenance without opening of the filter. The water leaving the filter has the same pressure as the entering water and therefore may can also used for waterfalls or injectors and therefore provides for a better oxygenation. The filters have a diameter of approx. 27-37 cm and a height of 47-57 cm. They can stand free or set into the ground, below or above the water outlet and used for fresh- or saltwater. The filters are available in two sizes with a volume of 25-30 l and 1" hose connections, for a recommended water flow of approx. 2.500-5.000 l/h and tank or pond size of 3-6 resp. 6-12 m3 (with resp. without fish stock).

SAND FILTERS for high comfortSandfilter with pump

This sand filters are made of glassfibre reinforced polyester (GRP) and available in various sizes, heights and types (diameter 0.4-0.9 m, height 0.6-1.5 m).
The filter units with high performance are available as single systems with or without distribution cross and outlet valve, manometer (with automatic and/or manual air removement) or also complete with pipes and ready for connection (230 Volt/50 Hz) with 6-way backwash valve, selfpriming 6-32 m3/h filterpump (with large debrits collector in pastic) mounted on a noise reducing plate made of plastic.
An automatic backwash system is available for all modells and guarantees high comfort and safety. The special filter sand (0.4-6.0 mm) is available as accessoire.

FILTER CHAMBERS with swirl seperator

Center-Vortex-FilterThis new compact filters are used specially for holding units and garden ponds and are very effective for the fine and raw filtration. The system can be operated by gravity or pumps and can be placed into the ground or stands free. A long inlet opening secures that the water in the vortex rotates slowly, so that the larger waste particles are traped in the center of the bottom. The build-in flow channels force the water to flow trough the filter media (i.e.: Filter brushes, Japan matts, Sinter glas, Aqua rock, Bio balls, Poly foam etc.). The waste particles concentrate at each cone, where they can be removed reularely by opening of a gate valve. The models are made from galssfibre reinforced polyester (GRP) and are delivered with cover and outlet pipes. They are available with or without filter material.

The following Center-Vortex models are available:

Type C20 C30 C50 C80 C100
Size L + W cm 85 107 140 165 193
Hight cm 65 75 80 100 100
Vortex Ø cm 45 50 75 95 110
In/Outlet mm 110/110 110/110 110/110 110/160 110/160
Flow approx. m3/h 4 6 9 12 16
Pond volume max. 20 30 50 80 100

On request also row-vortex filters with 3-5 filter chambers are available.

DRUMM FILTERS with high cleaning capacity

Drum filter without installation tankDrum filter with installation tank

This drumfilters for the mechanical cleaning of medium to heavy loaded aquaculture or industry waste waters are made from stainless steel and are available complete with filter frames and screens, cleaning pump, electric control and with or without installation tank.
The filters are available for flow capacities of 8-900 or 7-600 l/sec (at max. 10 mg or 25 mg load per liter), with filter screens from 20-100 µm, and a filter area of 0,24-16,50 m2. The energy demand is 180-550 watt and the water demand for cleaning is 0,13-1,10 l/sec at 2,5 bar.

The following types are available:














Diameter cm













Filterplates Nr













Filterarea m2













Motor Watt













Filtercapacity l/sec at:

36 ym













43 ym













63 ym













80 ym













Filtercapacity in liter per second at 25-10 mg/l in suspension.

PROTEIN SKIMMERS for aquaculture and aquaria

EiweißabschäumerThis protein scimmers have a good dimensioned volume of the reaction- and foam tube. A special injection unit generates a vacuum, where air is succed in and distributed in fine bubbles. In seawater the single bubbles have a volume of 0,065 mm3, a surface of 0,785 mm2 and a diameter of 0,5 mm. Each liter air generates therefore a total surface of 12 m2. A rotating (patented) nozzle system cleans the foam tube and the foam collector. Over a valve (optional automatic) water cleans the nozzle sytems. A regulating system allows to operate the scimmer also under extreme differing situations of water column. The optimal retention time is about 2 min., if the flow rate is increased the retention time decrease.

The following types are available:

Type/Diameter 250 300 500 700 850 1000 1200 1500 2000 2500
Volume m3 0,07 0,10 0,27 0,63 1,40 1,90 2,71 4,30 7,50 11,70
Height m 2,3 2,3 2,3 2,6 3,6 3,6 3,6 3,6 3,6 3,6
Air suction m3/h 1,2 0,9 5,0 7,7 11,0 15,0 22,0 35,0 75,0 115,0
Power kw 0,35 0,35 0,75 0,85 1,40 2,80 3,60 4,20 11,40 14,55
Retention time min 2 2 2 2 2 2 2 2 2 2
Flow rate m3/h 2 3 8 19 40 56 81 125 226 350

We deliver also ozone generators with a capacity of 1-1000 g/h.

BIOFILTER MEDIA with high settlement area

Biofilter Material

For Recirculating Aquaculture Systems (RAS) as well as aquaria and gardenponds or for the biological cleaning of wast waters after fish farms or culture ponds we supply the settling material for the biofilter which can be used in flow filters as well as sprinkling filters. The filter materials have a high settlement area for bacteria and allow a high removement rate respectively a good biological cleaning of ammonia or nitrate (nitrification/denitrification) of the water of approx. 0.5 g NH4-N/m2 in flow filters (in fresh water at a water temperature of over 20 °C). In moving bead or flow filters, 60-80 % of the filter volume can be filled with filter material. In standing or sprinkling filters, with a reduced cleaning capacity respective with more filter material of 20-40 % must be calculated. In seawater as well at water temperatures under 15 °C, with a reduced cleaning capacity respectively with more filter material of 40-60 % must be calculated.

The following types are available as standard:

Material/Form Polyethylene/cylindric-round
Typ H065 H050 H038 H025 H018 H017 H014 H012 H007
m2/m3 total approx. 100 150 200 300 500 600 700 850 900
m2/m3 protected approx. 85 125 150 225 350 400 650 700 500
kg/m3 dry weight approx. 40 50 55 70 110 125 150 150 160

The numbers mentioned in the types are the average dimensions of the products in mm.

HEATERS AND CHILLERS for aquaria and aquaculture

Climatisator (Chiller/Heater) Typ TK-3000This compact (CE-certified) heating and/or cooling systems can be used for various liquid media (also seawater or foods) and are very save and secure in operation through the missing direct contact to the media. An electronic control via a high precision thermostat and the continous display of the temperatur via a digital thermometer allow an easy and exact control of the temperature. The min. flow is 500 l/h up to typ 2000 and 3000 l/h from typ 3000 onward. An ecologic chooling gas (R134a or R410a) and a low power consumption are features of this transportable and easy to install systems. The standard connection is 230 Volt 50 or 60 Hz. Systems with integrated UV-C System, higher capacity or other voltages are possible on request.

The following types are available as standard:

Typ/Capacity TK-500 TK-1000 TK-2000 TK-3000 TK-6000
Power Watt 150/400 260/400 380/400 710/800 910/1200
Connections mm 16/20 16/20 16/20 25/25 25/25
Weight kg 17 20 22 42 50
Dimensions (LxWxH) cm 31x31x42 31x31x46 31x31x50 60x39x65 60x39x65

Capacity (0.5 W/l) in liter water volume at 5 °C temperature difference from ambient air to water (+/- 10 %).


UV-system in stainless steel reactor  UV-system in concrete cannel

Ultraviolet light (UV) destroys microorganisms by changing their genetic information (DNA), but does not produce residual or hazardous by-products, nor does it affect the tast, odor or colour characteristics of the treated water. It is light with very high energy levels and wavelength of 200-400 nanometer (nm). The most effective ultraviolet light for desinfection is UV-C (200-280 nm), specially with a wavelength of 254 nm.
The heart of the UV systems are high-performance spectrotherm lamps (low pressure technology) which provide a stable UV output through a wider temperature range. This special spectrothermal lamps show higher degrees of effectiveness and stability than other conventional lamps. They also exhibit a high UV power output (up to three times more than competitive low pressure lamps) and long operating live (12,000 h), resulting in decreased overall costs. The efficient lamps have a high UV emission in the area of the effective wavelengths (254 nm), that makes it possible to destroy more than 99.99% of all pathogens in water. To further increase efficiency, reliability and service lifetime, electronic power supplies (ballasts) for the lamps where developed. In addition, the new electronic ballast replaces several components required in conventional systems, reducing overall electrical cabinet size and heat transfer requirements.
Electronic controllers containing smart chips are designed specifically for the lamps and increasing effectiveness. These can vary the supply of energy to the lamps as a function of water quality and flow rates. They ensure that optimal levels of ultraviolet rays are emitted in the effective wavelength range and at the same time, they ensure low energy consumption. Consequently the lamps have much longer life expectancy than conventional lamps. In addition, calibrated sensors, monitor and document all factors necessary for desinfection and provide superior wavelenght selectivity (>99% at 254 nm), minimal drift (± 2%) and long service life. Upon reaching a present limit, the UV systems automatically signal that cleaning is necessary. If required, additional functions, such as ultraviolet dose indicators, automatic cleaning and remote monitoring via telemetry and the internet, can be integrated.
By studying various reactor geometries with respect to the UV intensity distribution and hydraulic characteristics, specific reactors types where developed to provide effective desinfection while minimising overall power requirements. Our systems have a modular design, which enables us to draw up solutions that are specified to our clients' needs in all areas of ultraviolet desinfection for up to sereral m3/h. This systems are characterised by their high desinfection performance, combined with compact construction and low energy consumption.

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Aeration Systems

INJECTION AERATORS for aeration, circulation, destratification and oxygenation

Injection Aerator Injection Aerator in use

This injectors are one of the best and most advanced aeration systems worldwide, and also suitable for large ponds. They work with an for endurance run produced, maintenance free, turnable, submerged (also seawater resistant), motor in different power sizes (1.1-1.5 kw (1.5-2.0 HP) 230 or 380 V/50 Hz). The rotating propeller (2800 r.p.m.) produces an adjustable current, through which air drawn from the surface and formed into fine evenly distributed bubbles.
The diffused air aerate from the bottom up and the circulation created from the fine bubbles displaces the surrounding water, thus breaking up stratified water areas. This constant surge forces the pond to turn over, bringing cooler bottom water to the surface, where it picks up additional oxygen from the atmosphere. Therefore the dissolved oxygen is always as high as possible. Through the eutrophication process (of faeces and feeds) there is usually oxygen deficit at depth, therefore this system works to an adjustable depth and introduces the oxygen where it is needed, not only on the surface. If submerged, pure oxygen instead of air can be introduced with exact dosage. Long contact time of the fine bubbles in the water, ensures also this system is very effective. Depending on power and depth, the air flow rate is up to 35 cubic meter/hour and the oxygen introduction up to 3 kg/h/kw. At an oxygen content of 6 mg O2/l at beginning, one 1.0 HP unit in use with air, introduce over 0.32 kg O2/h which is the oxygen demand for over 2600 kg (table sized 250 g) trouts at a water temperature of 10 °C, for approx. 1000 kg at 20 °C or up to 3000 kg of other species.
Depending on installation, depth and current, sediments can also be cleaned. If the aerator is positioned near the water surface it also acts as an ice clearing machine in winter. Strong circulation also eliminates pond stratification and organic matter deposition. Finally thanks to the floatation phenomenon (foaming), this aerators make it possible to remove excess algae proliferation, colloidal substances, mud and any other suspended particles and improve water quality. With this proven system, all variants of aeration, current creation and oxygenation are possible. Theese proven aerators are supplied complete with motor, supports, float kit and propeller protection fingers. They are lightweight compact systems ( 21 kg), and very easy to install.

INJECTORS without further energy consumption

Injector Injector in use

This "ECO" injector is a new developed static aerator for the water inlet pipe (1 ") in tanks, raceways and small ponds, that works hydraulically and has no moving parts. It is designed to ensure cost-effective use of any viable water source. For degassing, aeration, oxygenation and dosing with chemicals (thereby avoiding the slightest wastage and maximising efficiency). In enriching the water with air or pure oxygen, this aerator can create good circulation with a lesser ammount of water than is usually supplied, with consequent energy savings. It works hydraulically (from 0.2 bar and 0.4 l/sec. on) exploiting the act the water passing through it at high speed (achieved by means of suitable flow rates and pressures with the special 3 interchangeable nozzles (for approx. 30, 50 or 100 liter/minute) and creates a great pressure drop and consequently a tremendous suction capacity, without introducing additional energy. If no pressure is available it can be connected to any pump.

PROPELLER AERATOR with horizontal spray pattern

Propeller Aerator in useThis propeller aerator was specially developed for intensive production of fish in tanks, raceways and ponds. The maintenance free, heavy duty, motor (230 or 380 Volt) has a mounted propeller which allows a high water circulation and has an oxygen transfere rate of approx. 1.5 kg/kwh. The small float size (70 x 70 cm) as well as the compact and lightweight system make it fast and easy to install.

The following typs are available:

Power kw/HP 0.15/0.2 0.37/0.5 0.75/1.0
Water circulation m3/h 50 100 180
Water splash Ø cm 160 180 250
Water splash hight cm 60 75 90
Weight kg 26 28 30

As accessoire a protection basket (with 4, 7 or 12 mm grating) is available, which save smaller fish for injuries. Additionally a water conveyer for the suction of deeper water can be build to specific deepts.

AERATOR PUMP with fontain spray pattern

Aerator Pump Aerator Pump in use

This "Spray" aerator pump with 25 m cable is specially suitable for ponds and introduce a lot of oxygen into the water. If the self floating pump is connected with the spray nozzle it becomes an aerator with fontain spray pattern. If the supplied nozzle is changed to the supplied pipe adaptor it can be used as a floating pump for irrigation. The change of theese two functions doesn't need any tool. They have a very reasonable price and are easy to install, eighter floating on the water surface or submerged to any depth (with an anchor stone).

The following typs are available:

Power Watt 250 550 750 1100 1500 1800
Voltage (50 Hz) 220 220 220 380 380 380
Capacity m3/h 10 20 25 30 40 75
Area m2 500 1000 1500 2500 3000 4000
Water splash m 1-2 2-3 3-5 4-6 5-7 6-8
Pipe Ø mm 50 65 80 80 80 100
Weight kg 8 14 15 15 16 20

PADDLEWHEEL AERATORS for intensive production

Paddlewheel Aerator with H-floatThis paddlewheel aerators widely used all over the world, speciall in intensive ponds and raceways. They are available with 2-6 paddle wheels, in different power ratings from 0,75 to 2,20 kw (for 220 or 380 Volt) and have a weight of 80-120 kg. The oxygen introduction is usually about 1.6 kg/kwh. Wheel and frame are made of steel, the paddles from special plastic material and the H-formed floats from thick UV- and ozone resistant plastic.

PADDLEWHEEL SYSTEMS for effective oxygen introduction

Aeration and/or oxygenation is specially of economic importance in intensive farms. At this completely new developed systems all possible failures and defects of other known products have been removed. The systems have been tested under hardest conditions and have a very high effeciency, with the same time low investment and operation costs. The oxygen introduction is usually about 1.6 kg/kwh. There are no bearings of the wheel (100-130 r.p.m) necessary and also no couplings and discs, this reduce friction lost and increase the effeciency and also reduce the possible parst which could become deffect with time. A very long self live and high efficieny is also guarandeed through the worm-gearing. The motor is specially sealed aginst moisture. Paddles, wheel and frame are made of stainless steel, the floats from thick UV- and ozone resistant material. The Paddlewheel Aerators are available in different power ratings (180, 250, 370, 550 and 750 Watt) and have dimensions of approx. 1.5 x 1.6 x 0.6 m (LxWxH) and a weight of 30-70 kg.

Paddlewheel Aerator with T-floatOxygen cover

To use this paddlewheel aerators also with pure oxygen instead of air, as accessoire a special oxygen cover is available. The special formed cover inside guarantees that no oxygen (feed up to 15 l/min) disperse or waste to the surface, after the water leaves the aerator. As there are no seals necessary at the bearing of the wheel, also this guarantees that there is no oxygen wasted and thus this makes the system very effective too. The efficiency is up to 90 % and the oxygen introduction up to 2-3 kg O2/h.

RUBBER DIFFUSER with stainless steel frame

Rubber Diffuser in stainless steel frameThis professionell, extremely durable and effective diffusers are suitable for the live fish transport and for emergency purposes with pure oxygen. The approx. 1000 pores/meter arranged in 6 rows, of the special oxygen hose open only if oxygen is supplied and close again if the supply stops. Thus, pore blockage is prevented and the diffuser is allways ready to operate. An uniform bubble size due to the streight hose mounting in a stainless steel frame are main features of this professionell diffusers. The sturdy hose connection is 6 mm as standard (and is also available in 9 mm if prefered).

The following sizes are available as standard:



Width cm 40 40 55 55 55 55 70 70 70 70
Length cm 50 70 70 80 90 100 80 100 120 150

Other diffuser sizes and forms on request. For the self production of diffusers we deliver also just the diffuser hose per meter (18-19 mm inside and 24-27 mm outside diameter) as well as end pieces with connector and the pressure hose per meter (6 mm diameter).

CERAMIC PLATE DIFFUSERS for micro gas bubbles

Micro Bubble Ceramic Oxygen Diffuser Micro Bubble Ceramik Oxygen Diffusser in use

This diffusers are robust engineered products with high specification and performance and perhaps are the most efficient diffusers available. The ceramic plate has been designed to be very strong, the thickness (approx. 12 mm) of the ceramic has been increased over the more conventional plates. The pore size is also only 0.3 microns which produces a cloud of tiny oxygen bubbles (10-200 microns) in the water. Depending on the gas (oxygen or ozone) and water chemistry, the diffused gas may pass directly into solution with no visible sign of bubbles. There is no better gas diffuser available.
The flow is optimally 3-4 l/min and maximally 6-8 l/min. The working gas pressure is 25 to 35 psi, do not exceed 50 psi as it may result in damage to the diffuser. The ultimate in flat plate ceramic gas diffuser. One diffuser will supply sufficient oxygen to supply 100 % of the oxygen demand of approximately 2000 kg of fish with an efficiency approaching 100 % transfer of oxygen into solution and a oxygen satturation in the water of over 120 %. In seawater applications it can actually be difficult to see the bubbles, since the gas goes almost directly into solution.
The ceramic flat plate diffusers has a weight of 3,55 kg, outside dimensions of 450 x 110 x 28 mm with a ceramic plate of 400 x 90 x 12 mm (360 cm2) which gives a very small bubble size and are used where a small high rate diffuser with a high oxygen transfer efficiency is required. The diffuser has 4 mounting holes where stoppers can be fitted and has a female BSP threaded inlet with 6 mm adapter to connect the pressure hose.


Cross-Diffuser (floating)The fine poored ceramic tubes allow to diffuse the air in fine bubbles. The diffusers should be installed in the same deepth, but as deep as possible below the water surface. The floating cross diffuser is placed on the water surface in the center of the tank or pond and fixed with a rope to the shore so that it can move a little and aerate a larger area.
The cross diffusers are available complete with 20 mm hose tail (other on request) and are delivered with or without float. The 1 m long feeeding tube is also available shorter. Each diffuser tube has a length of 18 cm and a diameter of 6 cm and can introduce approx. 1.5 to 2.0 m3 air/hour each (6-8 m3 per cross diffuser). They are also available as self sinking single tube diffusers with hose tail.

FLEXIBLE GAS DIFFUSERS with high performance

Flexible Gas DiffuserThis is among the most robust and versatile fine bubble diffusers commercially available. The diffuser has the capacity to pass large quantities of air, oxygen or carbon dioxide with low pressure drop and small bubble size (approx. 1-4 mm). Fine bubble diffusion is inherently more effective than coarse bubble diffusers in providing a greater mixing action and aeration efficiency. The diffusers are of a tubular semi-flexible construction (32 mm in diameter). An outer polyester sleeve encases a silica particle ballast and an inner nylon distributor. The internal ballast is not fused together, therefore precipitates such as iron and carbonates tend to crack off, and can be flushed out easily. The internal ballast (weight approx. 1.6 kg/m) means that the diffuser does not need to be anchored to the floor of the tank. The unique design of the diffusers makes them largley resistant to biological and chemical fouling. The diffuser resolves many of the problems associated with other diffusers and has proven itself with over 10 years of use in many industrial and wast water treatment applications and it is the leading air diffuser for aquaculture. This gas diffuser is a hybrid air diffuser with the benefits of both tubulare membrane and solid air diffusers, but with few of the disadvantages. Solid diffusers can breack or become blocked by biofouling, iron and carbonate precipitation. Membrane and other tubular difussers have to be secured to the tank bottom. The membranes (elastomers) can also suffer from fatigue, and as a consequence the performance can rapidly tail off over a few months.
The diffusers are sized (up to 3 m in length, and with extention parts also longer) according to the flow (m3/h) of air to be used. Length is approx. 33 cm per m3/h air or liter oxygen/min flow rate and pressure drop is less than 1 psi. All diffusers are supplied with either 3/8", or 1/2" hose tails in acetyl plastic. Brass or stainless steel fittings and non return valves are also available.


Membrane CompressorThis simpe membrane diaphragm compressors supply oil-free air and are perfectly suitable for live fish transports, where the required energy (12 V/DC standard, 24 V/DC on request) can be supplied by a battery i.e. from the truck. As accessoires 6 mm hoses and various diffusers are available.

The following types are available as standard:






Volume max. 70 l/min 90 l/min 105 l/min 125 l/min
Pressure max. 1,0 bar 1,2 bar 1,2 bar 1,3 bar
Power 35 W 60 W 100 W 120 W
Ampere approx. 3 A 5 A 8 A 10 A

REGENERATIVE BLOWERS for pressure or vacuum generation

Regenerative Sidechannel Blower (doubble stage)This reliable and favorable blowers summarise modern know-how of pressure and vakuum generation, based on longtime experiences. The motoris constructed for endurance run is available in various power sizes. Concerning the compact dimensions and the low sound this blowers are easy and everywhere to install. Lateral channel blowers work regeneratively. Casing and impeller with radial blades form a circular body. The medium (air) is accelerated by centrifugal force in the blade channels, stocked and compressed. This process continues permanently with continually increasing pressure rising until the medium leaves the casing through the outlet connection. Because of the special principle of construction and design, there is no contact between rotating parts.
Our unique submerged air blowers (on request) are installed directly in the water and allow therefore shorter pipe-lines, resulting in lower oppositions. This submerged blowers are nearly noth to hear and also save space. The waste heat from the submerged blowers can be used to heat the water in warmwater recirculation systems, which is an additional advance. The blowers can be installed single, paralell or for increasing the pressure, also in rows. At special request, all blowers can be produced for seawater use or other electric frequencies. As accessoire air filters, sound absorbers and security valves are available. The machines are delivered as mono stage (M) or doubble stage (D) blowers with single (S) or twin (T) impeller.

Types with the following performance data* are available as standard:

P mbar 0 100 200 400 600

Pressure max.


Weight approx.

Typ-Mono stage m3/h (kw) m3/h (kw) m3/h (kw) m3/h (kw) m3/h (kw)

mbar (kw)



00-MS 55 (0.20)        

  90 (0.20)



03-MS 74 (0.37) 39 (0.37)      

150 (0.55)

1 1/4


04-MS 137 (0.75) 96 (0.75) 55 (1.10)    

250 (1.50)

1 1/2


05-MS 219 (1.10) 166 (1.10) 113 (2.20)     300 (3.00) 2 30.5
06-MS 304 (2.20) 242 (2.20) 181 (3.00)     340 (4.00) 2 35.2
07-MS 412 (2.20) 334 (2.20) 255 (3.00) 96 (5.50)   400 (7.50) 3 61.5
08-MS 536 (3.00) 450 (3.00) 363 (5.50) 190 (7.50)   450 (9.20) 3 77.5
09-MS 663 (4.00) 570 (4.00) 477 (5.50) 291 (11.0)   450 (11.0) 4 87.5
10-MS 782 (5.50) 684 (5.50) 586 (7.50) 389 (11.0)   500 (15.0) 4 95.0
11-MS 915 (5.50) 812 (5.50) 708 (9.20) 501 (15.0)   450 (18.5) 4 128.5
Typ-Double stage m3/h (kw) m3/h (kw) m3/h (kw) m3/h (kw) m3/h (kw) mbar (kw) Inch kg
10-DH 30 (0.37) 15 (0.37) 2 (0.37)     200 (0.37) 1/2 10.0
15-DH 50 (0.55) 37 (0.55) 25 (0.55)     300 (0.55) 3/4 12.5
20-DH 72 (0.37) 51 (0.37) 35 (0.55)     350 (1.10) 1 1/4 21.5
30-DH 103 (0.37) 79 (0.55) 61 (0.75) 26 (1.50)   400 (1.50) 1 1/2 26.5
40-DH 144 (0,75) 118 (1.10) 95 (1.50) 55 (2.20)   500 (3.00) 1 1/2 36.5
07-MD 181 (2.20) 165 (2.20) 150 (2.20) 122 (3.00) 97 (5.50) 650 (5.50) 3 64.5
08-MD 236 (3.00) 219 (3.00) 202 (3.00) 173 (5.50) 148 (7.50) 650 (7.50) 3 72.0
09-MD 311 (4.00) 288 (4.00) 268 (4.00) 229 (5.50) 196 (7.50) 725 (9.20) 4 90.5
10-MD 387 (5.50) 358 (5.50) 331 (5.50) 283 (7.50) 249 (9.20) 750 (11.0) 4 92.5
11-MD 431 (5.50) 402 (5.50) 375 (5.50) 325 (7.50) 282 (11.0) 750 (15.0) 4 108.0

Performance data at pressure operation 50 Hz (= 2900 RPM), for air at 20 degree C, pressure 1013 mbar, tolerance +/- 10 %

OXYGEN GENERATOR SYSTEMS for intesive aquaculture

Oxygen GeneratorIn recent years, fish farming has turned into high density farming practice and pure oxygen is essential in modern aquaculture. Sveral studies have shown adding dissolved oxygen into water on fish farms has a very positive effect on growth rates, feed conversion and mortality rates, all factors that will affect the profitability significantly. On-site oxygen generators allow an uninterrupted supply of gas with a high purity output (adjustable 85-95 %, outlet pressure 4 bar). This means that you can produce gas where and when you need it, and in the exact quantity and quality you need, to reach gas selfsufficientce and independence from external gas suppliers.  This oxygen generators are known as reliable, easy to use and low operational cost. They save energy and money as supply of oxygen cylinders or rent of liquid oxygen tanks becomes irrelevant. The average oxygen production cost are about 1,1 kwh per cubic meter of oxygen. An oxygen generator combined with cylinder gives the highest level of backup in comparison with cylinders it gives overall cost reduction up to 80 %. We use only high quality components and all systems are designed for 24 hours, 365 days a year’s operation. They are easy to operate and require minimum amount of maintenance and service.
This prooved generators are based on the well-known PSA (Pressure Swing Adsorption) technology, using two pressurized columns with molecular sieves to ensure continuous production. Dry compressed air is blown through a valve to the vessel where the pressure is built to reach 5 to 7 bar(g). Oxygen is tied to a molecular sieve during the building of pressure and the nitrogen is allowed to pass through to the accumulation tank. While pressure is built in vessel, the second remains without pressure. A part of the produced gas is used for regeneration of the molecular sieve, which, in the case of Nitrogen, is a Carbon Molecular Sieve (CMS). The entire PSA system can be subdivided into several components like: air compressor, air dryer, air tank, oxygen generator, oxygen tank and accessoire. The models are available with a capacity in the range from under 1 to over 400 m3/hour (at an oxygen purity of 90 %). Oxygen cylinder filling stations are available on request.

The following models are available as standard:


O2 kg/h

O2 m3/h Consumption* Tanks Weight
OM-020 2,4 1,7 2,7 kw 90 l 354 kg
OM-040 3,5 2,5 3,6 kw 90 l 384 kg
OM-060 5,0 3,5 4,8 kw 90 l 446 kg
OM-070 6,7 4,7 6,5 kw 150 l 653 kg
OM-102 10,5 7,4 9,1 kw 320 l 836 kg
OM-170 14,9 10,5 10,7 kw 320 l 1086 kg
OM-230 21,4 15,1 14,3 kw 470 l 1416 kg
OM-234 28,5 20,1 21,0 kw 470 l 1455 kg
OM-333 37,6 26,5 23,7 kw 750 l 2220 kg
OM-335 44,2 31,1 28,4 kw 750 l 2312 kg
OM-503 67,0 47,2 42,1 kw 1000 l 3548 kg
OM-600 84,1 59,2 60,0 kw 1500 l 4605 kg

Flows in m3/h for operation with 15°C, 981 mbar, inlet pressure 7 bar, flow variance ±5%, oxygen purity 90 %, purity variance ±1%.
Conversion rates for oxygen: 1 m3 = 1,43 kg; 1 kg = 0,70 m3.
* incl. compressor, dryer and generator.

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Monitoring Systems

WATERPROOF TESTERS for aquaria and aquaculture

Waterproof Pocket Tester (pH + ºC)These waterproof (IP67) and pocket sized testers (153 mm long, 24 mm diameter, weight just 45 g) with digital display are ideal for aquaria or aquaculture and any other field applications. There are different models with replaceable electrode and automatic temperature compensation available that read conductivity or salinity (0-1999 µS EC or 0,0-199,9 ppm TDS), pH-value and temperature (0.00-14.00 pH and 0.0-50.0 ºC) or redox potential (±1000 mV ORP) at an affordable price. The tester are factory calibrated, but can be manually calibrated and measurements are highly accurate (0.1 or 2 % or mV) with high resolution (1,00 to 0,01). The modular design allows easy electrode and battery replacement. A rugged splash-proof and floating casing prevents water infiltration. All the testers work with common batteries (3 x 1.5 V) and have a long live.

TEST BOX for the water analysis

Compact Analysis BoxThis Compact-Laboratory box set is equiped with liquid colour analysis tests of: Oxygen (Demand + Dissolved), Hardness (Total + Carbonate + Residual), pH-value, Ammonia, Nitrite, Nitrate, Phosphate, and Temperature.

All tests ar also available as single or replacement units and additionally test sets for: Aluminium, Arsen, Lead, Chlorine, Chloride, Cyanide, Iron, Calium, Copper, Magnesium, Manganese, Nickle, Sulfate, Sulfite, Zink, Zinn etc.

DIGITAL PHOTOMETER for various water parameters

Photolyser box setFor the necessary manual analysis, this microprocessor photolyser meter with professional concept and high precision is the right coice. Just select the required program on the foil pushbuttons. The display shows the parameter and dimesions exactly (to 2 digits behind the got). An acustic sign informs when the reaction time is finished. The results are displayed on the meter and can be stored for later processing. The meter is equipped with a  RS-485 adaptor. Via an additionaly integrated RS-232 adaptor the meter can be connected to a printer or PC (cable as accessoire available). It is possible to archive over 500 stored data sets with date and time for up to 16 tanks. The meter has a 0-point-memory, which needs no new calibration. This photolyser works with 4 usual 1,5 V batteries, with integrated capacity monitoring on the meter. Alternatively accumulators or a connector for an external power supply is available (as accessoire).

Aluminium 0-0,5 mg/l, Ammonia 0-0,5 mg/l, Bromine 0-10 mg/l, Chlorine 0-5 mg/l, Cloride 0-250 mg/l; Copper 0-1 mg/l, Hardness 0-500 mg/l; Iron 0-5 mg/l, Manganese 0-0,03 mg/l, Nitrate 0-100 mg/l, Ozone 0-1 mg/l, Phosphate 0-4 mg/l, pH-value 6-8 and Acid-potential 0-5 mmol, etc;

SATUROMETER to identifie gas super-satturation

SaturometerThis new handheld saturometer (Protection class IP65, with electric backlight display identifies gas super-saturation in water reliably to 250 hPa resp. mbar pressure difference (displayed also as % total gas satturation), with an accuracy of 1 hPa. It works with a usual 6 x 1.5 Lithiumcells, with integrated capacity monitoring on the meter. The maintainance free sensor is copleatly sealed (Protection class IP67, Signal outlet 0-5 V). As option also an oxygen sensor can be connected to the meter.
The gas bubble disease is very often present undetected and leads to significant damage in the fish stock. If fish are being exposed to oversaturation continuously, they will suffer from it no matter which gas contributed most to the supersaturation! In experiments it was proven, that a continuous charge with only low levels of supersaturation has a significant negative impact on the fish immune system. A fishstock infected with IPN (Infectious Pancreas Necrosis) produced losses of 10-15 % after 90 days whereas fish from the same stock epxosed to supersaturation showed a mortality rate of 65 %. The gas bubbles themselves cause a lot of direct damages like lesions and embolies. Those alone are lethal in some cases. But in every case they open the door for secondary infections which can not be repelled by a weakened immune system. Another typical sample is a trout breeder who reported fin rot and saprolegnia on the fish body. Measures showed a gas pressure of 45 hPa which equaled to 105 % gas saturation. It may not sound high but the pectoral fins were severely damaged by gas bubble lesions. The fin rot and fungus (Saprolegnia) were clearly produced by an undetected gas oversaturation.

We deliver also moisture meters.

WATERPROOF METERS for easy measurement

Waterproof  MeterAt the development of this new series of handheld meters we concentrated on the most important functions of the measurement technique. The pure measurement with the focus on precision, fastness and durability packed in a stable ABS-housing 108 x 54 x 28 mm (LxWxD), weight approx. 130-200 g (without sensor) with 4 simple touch-buttons, allows for an extraordinary relationship of price to value. This functional meters have a modern and egonomic design, are dust- and weaterproof (according to IP65/67) and have an illuminated 3-line display (accuracy: 0,5-1,5 % resp. +/- 1 digit at a norm temperature of 25 °C) with battery status. This meters have additional features, such as: automatic min-/max-value memory, hold-function, and an overhead display on push-button. The reasonable priced meters are delivered completely ready to use incl. battery (type AA), cable and sensor (12 mm Ø). Transport cases are available as accessoire.

Type/Model GEC-14 Conductivity-meter GPH-15 PH-value-meter GDO-16 Oxygen-meter GTE-17 Temperature-meter
Measurement: Conductivity: 0 - 2000 µS/cm or
0,00-20,00 mS/cm;
Salinity: 0,0 - 50,0 mg/l;
TDS: 0 - 2000 mg/l;
Temperature: 0 - 100 °C;
PH-value: 0,00 - 14,00. Oxygen: 0,0 - 20,0 mg/l;
Satturation: 0 - 200 %;
Temperature: 0 - 40 °C.
Temperature: -70,0 - 250,0 °C.
Sensor: Graphite-sensor with 1 m cable fixed to device Gel-sensor with 1 m cable and connector Galvanic-sensor with 2 m cable fixed to device Dip-sensor with 1 m cable and connector
Other: Automatic temperature compensation;
Automatic measurement range switch.

Option -
Controll solutions.
Manual temperature compensation.

Option -
Sensor for deept water (submersible);
Calibration solutions (pH 4, 7, 10);
Cleaning solutions.
Automatic temperature compensation;
pressure compensation;
Manual salinity compensation.

Option -
Protection cap for sensor;
Electrolyt solutions.
Automatic switch-off function
deactivate and adjustable;
Acustic alarm function;
Housing in yellow colour
Option -
Stitch-sensor (1,5 or 3,0 mm Ø);
Surface-sensor (2,3 mm Ø);
Screw-sensor (6,0 mm Ø).

ELECTRONIC METERS for many water parameters

GMH MeterAll this electronic devices have a size of 142 x 71 x 26 mm (LxWxD) and a weight of approx. 155/255/300 g (incl. battery/sensor), and have a LCD doubble display (precision: ±1 digit) for measured values and temperature, min-/max-value memory, configurable automatic switch-off function (1-120 min), hold-function, foil pushbuttons, automatic temperature compensation, 12 mm Ø sensores, serial connetion, 9 V  battery with warning and external energy connector as well as integrated stand- and hanging clip.

The following meters are available:

Type/Model GMH-33 Flow-meter GMH-34 Conductivity-meter GMH-35 PH-value-meter GMH-36 Oxygen-meter
Measurement: Flow: 0,05 ... 5,00 m/sec.

Option -
Air humidity: 0,0 ... 100,0 % r.H.;
Air temperature: -40,0 ... 120,0 °C.

Conductivity: 0 ... 2000 µS/cm
or 0,0 ... 200,0 mS/cm;
Salinity: 0,0 ... 70,0 g/kg;
TDS: 0 ... 1999 mg/l;
Resistance: 0,005 ... 100,0 kOhm;
Temperature: 0,0 ... 100,0 °C.
PH-value: 0,00 ... 14,00;
Redox: (ORP): -1999 ... +1999 mV;
Hardness: 0,0 ... 70,0 rH.

Option -
Temperature: 0,0 … 150,0 °C.
Oxygen: 0,0 … 60,0 mg/l (ppm);
Satturation: 0 … 600 %;
Air-Pressure: 10 … 1200 hPa;
Temperature: 0,0 … 50,0 °C.
Sensor: Anemo-sensor with 5 m cable and connector Graphite-sensor with 1 m cable fixed to the meter KCl-sensors with 1 m cable and connector Galvanic-sensor with 2 m cable and connector
Other: Air measurement as accessory;
Wind measurement on request;
Telescopic sensor on request.
Automatic temperature compensation,
Automatic cell correction.
Automatic temperature compensation;
Automatic calibration.
Automatic temperature compensation;
Automatic pressure compensation;
Manual salinity correction.


In connection with a PC, a meter of the GMH-seria, the PC-interface adaptor (Accessorie) and this software, a comfortable and reasonable data collecting system can be build (registration of data also over many years possible).
The software includes two modules: “Schreiber” (Writer) and “Datenanzeige” (Data display).
Modul “Schreiber”: Displays the data as y/t-diagram.
Modul “Datenanzeige”: Scanning of collected measurement values and display as y/t-diagram.

MICROPROCESSOR METERS for professional monitoring

OxyScan 300 "Laboratory" with plastic oxygen sensorThis improved meters were specially adapted for use in aquaculture and limnology. The compact (L x W x H 165 x 83 x 34 mm, approx. 305 g) splash-proof cover (IP 54), the plastic sensor (14 mm Ø, 150 mm long, with 1.5 m cable), the very long sensor life (approx. 2 years standby time), and the delivery with NiMH-batteries (2 x AA Mignon) and USB-cable with charger in transport case, make these meters perfect for field work or laboratory use. The large graphic multi-display makes the readings available clearly and quickly. The short polarization time (approx. 30 sec. max. 5 min.), the low flow current sensitivity (1 % at 5 cm/sec.), the high precision +/-1 digit (0.1 mg, 0.5 % or °C), as well as salinity correction, automatic air-pressure and temperature compensation (in the range of 5-40 °C) makes working easy. Automatic calibration with the calibration chamber (included) is an additional feature. Options include stainless steel sensors (4.7-5.4 mm), and other cable lengths available. To enable you assigning measured values geographically, these meters are available with or without GPS.
This modern devices have: an electronic compass, a data logger with adjustable start/stop time and measuring intervals between 5 sec. and 10 min., with automatic storage of all measured values ​​(approx. 3 months during battery operation, also mains operation possible), a large internal memory (32000 locations), and an individual measured value storage on key press with 1000 memory locations. Additionally, radio controlled (RC) switching outputs for standard RC sockets and acoustic signals, for up to 4 RC sockets with separate two-point control for oxygen (absolute or relative), conductivity, temperature or air pressure, two additional alarm outputs, which trigger a standard RC bell when the set values ​​are exceeded or subtracted, and two additional channels for optical and/or acoustic alarm on the meter. The power-saving graphics display (transflective with background lighting) with best readability even in direct sunlight, and adjustable contrast, activates automatically display and background lighting when the device is moved (can be switched off). The beep (alarm and key tone) volume and frequency is adjustable. PC-software for data visualization and data export included (with free online software update).

The following models are available as standard:

Typ/Model OxyScan "Outdoor" OxyScan "Laboratory"
Measurement: Oxygen 0,00-25,00 mg/l and 0,00-250,00 %sat,
Temperature: 00,00-60,00 °C;
Air-pressure: 50,00-1150,00 mbar;
Oxygen: 0,00-25,00 mg/l and 0,00-250,00 %sat,
Temperature: 00,00-60,00 °C;
Air-pressure: 50,00-1150,00 mbar;
pH-value: 00,00-14,00 or
Redox-potential: -500-+500 mV;
Precision: +/- 1 digit
(0,01 mg, 0,1 %, 0,1 °C, 0,5 mbar)
+/- 1 digit
(0,01 mg, 0,1 %, 0,1 °C, 0,5 mbar, 0,1 pH, 0,3 mV)
Options: GPS;
Cable extentions.
Cable extentions;
Stainless steel oxygen sensors;
Optical laser oxygen sensor with conductivity measurement;
Connection box for up to 4 oxygen sensors.

Dynamic Sensor Data

OPTICAL DISSOLVED OXYGEN SENSOR to connect on systems or computers

Optical Oxygen SensorThis new development is the first optical oxygen sensor with SCS interface (Simulation Clark-Sensor), for a perfect integration into running systems. The ideal substitute for your existing oxygen sensors. Via the SCS interface downward compatible to classic oxygen sensors (galvanic isolation), works together with classic transmitters. Additionally, the sensor can be connected via the 4 to 20 mA current output or with a process control system (SPS). As acessoire, a PC-adapter (USB-RS485) is available, with which the sensor can be connected directly to a personal computer, and configures from there (Software for free), where just a net-device is needed and no external meter. The calibration is simple and only needed once as the calibration data can be stored in the sensor. The robust and simply exchangeable sensor cap has a warranty of 2 years. It guarantees stable values at once, little drift, quick reaction time, and all independent from incoming flow. The sensor has no sensitivity towards H2S or CO2, but an automatic temperature compensation and malfunction diagnosis. Measrement range 0-20 mg/l, 0-200 % sat., resolution (at 25 °C) +/- 1 %, limit 0.1 %, reaction time < 60 s, temperature range -5 to +50 °C. The sensor can be delivered with an IP68 termination plug or with a fixed cable in different lengths. For mounting in a probe holder the sensor can be delivered optionally with a 1" process connector. For fish farming there is a robust version with a biting-protection with nut inserts available for water depth up to 20 m. A display- and regulation system (for up to 8 sensors) is available as acessoire.

MODULAR MULTIPARAMETER measurement and control system

Modular Multiparameter Process ControlWhen it comes to automatically controlling and adjusting critical water parameters, it leaves nothing to be desired. Due to its flexible modular concept, the system is the perfect solution for most applications in aquatic environments. Apart from comprehensive timing functions, it provides measuring modules for the parameters of pH value, redox potential, temperature, conductivity, level (fill level), oxygen and air pressure. Up to 8 sensors can be linked to the system in any requested combination. This allows, for instance, simultaneous pH value-measurement and adjustment in eight different pools – which is so far unique. Connection facilities for up to eight measuring modules in any requested combination allows for connecting up to 16 switching outputs (4x4) for control and adjustment functions measured data storage for 2000 measuring chains battery backed computer interface for PC-data evaluation with the software, capable of being network-integrated by LAN adapter, flash memory technology for update-function, automatic sensor identification and sensor testing, day/night simulation, lunar phase simulation, high/low tide simulation, flow simulation, timer clock functions, time interval functions, night modus, acoustic, optical and external alarm, etc.
The system provides greatest accuracy, ease of use, and maximum reliability. The systems are available as measuring/regulation systems with a switch socket and mains adapter for permanent operation. Besides its accomplished design, its practical special functions are thoroughly convincing, too. It is this facility that gives you the overall picture of your past readings thus quickly revealing any trends. The systems can be extended, even at a later date, to form a measuring and regulation system designed for permanent operation, simply by connecting the optionally available power station. An integrated alarm function assures greater safety. You can select an upper as well as a lower alarm setting. If, for whatever reason, one of these alarm settings is reached, the Power Station switch socket will be turned off. At the same time the alarm status will be appear on the display. The result is a reliable and effective prevention of damage. Microprocessor-controlled, Alarm function, Large display panel, Manual / automatic storage of measurements (up to 470 readings), Automatic transition to energy-saving mode when being run on batteries, Battery check, Semi-automatic calibration with sensor test (for pH, redox, conductivity, oxygen), High-quality, low-maintenance sensors.
The software is the central and convenient solution for controlling, adjusting and analyzing all industrial measurement and control systems. At just one glance, the user can check out if everything is okay – and interfere if necessary. Internet connection allows for controlling and adjusting the system even from remote PCs. It allows for analyzing and controlling the data measured by up to 255 industrial systems in one central PC. Allows for configuring all system parameters from PC, allows for status e-mails and SMS alarms, data base and graphical presentation of measured data and measured value evaluation.

MULTICHANNEL PROCESSERS for control and management

Wireless Multichannel Process ControlThis is a very versatile instrument that can be used as a stand-alone wirless and solar powered multi channel controller for cages, ponds, tanks and raceways, etc. It also has a large liquid crystal display which shows oxygen and temperature values. If there are more than 1 monitor units and a base station receiver, then the system automatically configures as a network and sends the information by low powered wireless communication to the base station. The base station has 2 alarm outputs, so it is easy to connected it to a telephone dialer or a local alarm. The base station connects to a PC via a USB, so now you have all the information displayed on your PC and all the results can be data logged.  You can add up to 50 monitor units onto the one base unit, to make a 100 channel network with no wires and no installation costs.  This makes for a really low cost simple system and for the first time provides a package ideal for cages, ponds or for any installation that can not use wires. In the event that you get hit with lightening, then generally only one unit will be affected, and if it can not be repaired on-site then you simply send the faulty unit back and replace with a working unit. This means that you are in control of your own system and not dependent on service engineers.
The base station is designed to sit in an office or control room and is connected to a PC by means of a USB cable. The base station communicates with all the transmitters, collects the information and sends onto the PC to data log the information and view the data. The base station has two alarm/control relays so if any one or more of the probes detects a problem, the relays can be activated to trigger your alarm system. The PC does not need to be on for the system to control or alarm. The alarm condition and probe location will be displayed on the base station LCD. One Base station can support up to 50 oxygen transmitters and 100 oxygen and temperature probes.
The transmitter station is a solar powered wireless radio transmitter fitted with LCD display for two oxygen probes, two temperature sensors, two digital inputs and fitted with two relay control or alarm out-puts. The unit will transmit over a distance of at least 300 m. If longer distances are required a repeater may be fitted to take the distance up to 3 km or more. The transmitter is in a self contained IP65 enclosure with its own battery and solar cells. The battery alone will power the unit for 3-6 months, but with the solar cells it will not require a battery change for at least 5 years. A 230 VAC/12 VDC uninteruptable power supply, rated at 2 amps with a 5 amp internal back-up battery for the transmitter module which will the battery will keep running for around 30 days, is available as acessoire.
The robust and easy to use (60 mm large) oxygen probe is a self polarising membrane covered galvanic cell that generates an electrical signal proportional to the oxygen pressure it senses, no matter whether it is in water, air or another medium. It is connected using ordinary 2-core cable, which can have any length (up to 1000 m) and does not need an external supply because it makes its own electricity. Cleaning the membrane (with a cloth or tissue) is, apart from an occasional calibration, the only routine maintenance necessary.

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Breeding Systems

HATCHING JARS made from plastic

Plastic Hatching JarUsed successfully for over 20 years by federal, state and professional hatcheries and fish producers here and abroad, this jar can be used for a wide variety of species like: Salmonids, Thymallids, Coregonids, Acipenserids, Percids, etc. Made of high impact, non-corrosive easy to clean plastic, this uniquely designed hatching system enables uniformely distributed water to rotate fish eggs ever so gently and evenly. It works very simply as water from the supplying hose is directed down to the open-ended feeder tube in the center of the jar. The tube (diameter 3 cm = 1.25 in.) easily accommodates the prefered water flow so that the eggs at the base are rotated uniformely and precisely. The jar has a height of 45.8 cm (18 in.) a diameter of 16 cm (6.25 in.) and a volume of 6.86 l (232 oz.). It weighs only 2.5 pounds and can be ordered complete or also without feeder tube and screen. A circular filter/mesh screen (as acessoire) prevents waste eggs from spilling out of the jar, while the large spout (length 7.5 cm = 3 in., width 5.3 cm = 2 in.) at the top lets hatched fish swimm out at just the right time. Now you can virtually duplicate nature's way of hatching eggs with this durable, seethrough incubator jar. So next time you want your eggs "over easy", make sure you are using this hatching jar.


Weiss Jar SystemThis simple and cheap jar system is suitable for hatching of eggs of various fish species, like carp, pike, perch, catfish, burbot, sturgeon etc. It is made of stainless steel frame and saves space and water. Each "Weiss or Zougg" jar made of glass with a volume of about 8 liters and bottom sieve, has a its own inlet pipe with valve and a overfow with pipe, so that it can be supplied indvividually with water. After hatching the larvae usually leave the jars by themself with the water flow or are removed by the farmer from the jar. The system can be build with any number of jars (up to 10 pieces in single and up to 20 pieces in double row).


Zougg Jar SystemThis well designed systems are made of stainless steel and are equiped with "zougg or weiss" glass jars wich can be removed and serviced seperatly. Through the inlet tank on top, all jars can be individually supplied with water. The tank and feets are soemwhat adjustable in height. The eggs of various fish species (Cyprinids, Esocids, Thymallids, Coregonids etc.) are incubated in the jars and rotated gently by the water flow. A breeding cone for salmonid eggs and an overflow sieve (1-2 mm holes) to avoid eggs or larvae being spilled out by water, is available as accessoire. The standard systems have dimensions (LxWxH) of 80-200x40x165 cm and are equipped with 3-7 glass jars each with a volume of 8 liters. Other sizes or jars are possible on request. Single jars with or without stand support are available too.
The system can be equiped with a heating/cooling system and in connection with an UV-sterilizer operated in recirculation.


Vertical Incubator with 8 traysThis vertical incubators guarantee safe conditions for the professional breeding and hatching of salmonid eggs (like: salmon, trout, charr etc.) and can be combined and arranged in different ways, to utilise the availabe space as effectively as possible. The water (min. 6 l/min) from the inlet, flows through the trays on which the eggs stays, and leaves the water tray over the front during the side canals to the next tray, were it flows again through the egg tray and so on, so that all trays will be supplied with sufficient water. Without disturbing the other trays, each tray can be drawn out and controlled easily and provides perfect conditions from the fertilized egg to the swim-up stage. They are available with 4, 8 or 16 trays approx. 60 x 60 cm (for 50.000, 100.000 or 200.000 eggs respectively up to 1 liter eggs per tray) made from strong non toxic plastic material and includes the aluminum frames (approx. 44, 82 or 175 cm high) and all egg trays (approx. 50 x 40 x 4 cm) with PVC coated polyester screens. Optionally isolation panels (clear or black) for the front or back are available.


Vertical Incubator with top tank and support frameThis vertical incubator allows optimal conditions for the incubation and hatching of salmonid eggs (like: trout, charr, grayling etc.) and save water. The water (only 1.8 l/min) from the top tank with float switch and filter tube flows by gravity trough the trays, from the central inlet funnel through the sive baskets where the eggs stay, and leaves the tray via the outlet holes all arround the sides, where if lows down the cone shaped tray to the next one a.s.o., so that all trays will be supplied with sufficient oxygen. Without disturbing the other trays, each tray can be drawn out and controlled easily and provides optimal conditions from the fertilized egg to the swim-up stage. The corpus made of black plastic has a removeable and roll-up front cover also made of plastic material, which reduces light within the incubator. The incubator is available with 10 trays and baskets (for 100.000 eggs respectively up to 1 liter eggs per tray) made from aluminium (approx. 40 cm diameter and 5 cm high). The whole incubator has dimensions (W x D x H) of 48 x 62 x 128 cm. A support frame (45 cm high) made of stainless steel is available as accessoire.
The system can optionally be equiped with a heating and/or cooling system or operated in recirculation.

BREEDING THROUGHS for salmonid eggs

Breeding through with trays and sieveThe horizontal throughs allow an easy survey of the breeding process and are available for up to 4 or 7 baskets approx. 40 x 40 cm (for up to 1-2 liter eggs each) made from smooth reinforced glasfiber polyester (approx. 215 or 360 cm long). The screen (1-2 mm holes) of the egg incubation baskets are fitting exactly. The water (min. 0.1 l/sec) from the front, flows through the baskets on which the eggs stays, and leaves the through at the back side, so that all baskets will be supplied with sufficient water. Without disturbing the other baskets, each basket can be controlled easily from the top. Optional an outlet screen is available. This throughs can also be used for startfeeding of the fry after the yolk sac has been absorbed.

BREEDING BOX for running waters

Erbrütungsbox (geöffnet)An experience of many years in egg incubation and fry rearing, as well as stocking experiments in various waters, where the base of this new and innovative invention for the hatching of salmonid eggs in natural running waters. The flood save and closeable box is made of stainless steel with dimensions of (LxWxH) 85 x 20 x 12 cm, weight approx. 8 kg). It is used for the professional and controlled incubation and hatching of salmonid eggs as well as for the breeding and rearing of fry for (re)-stocking purposes. The box is simply set into the water (front flap against the current and cover a little above the water line) and anchored by the eyes to the bottom ground. Depending on fish species and egg size, the box supports a save environment for up to 10.000 eggs and fry until exogenous feeding. The eggs lay in baskets, which can be fitted with special hatching substrate to reduce maintenance. Under „normal“ conditions, the maintenance is limited to the periodical controll (1 x per week) of the system, where results of 90-95 % are reached in average. When the fry reach the stage of exogenous feeding they can distribute themselve in the brook or river.

HATCHING SUBSTRATE for stronger fry

Hatching substrateMainly for salmons, but also for many other salmonids, this 2-layer hatching substrate (40x40 cm) have been used and proven well. The eggs are incubated on the hatching substrate as usualy practized. After hatching the larvae move trough the spaces and shelter in the substrate nipples of the soft rubber like plastic substrate. The hatching substrate imitates the gravel substrate naturaly occuring in the brooks or rivers and provides optimal developmental conditions for the fish larvae. The fry are therefore stronger, have less deformations and a lower mortality rate.

MANUAL SORTING DEVICE for salmonid eggs

Egg pickerFormerly, developed at the Austrian Institut of Fisheries Economy in Scharfling, this handheld egg-sucker has been rebuild, allowing to select dead Salmonid eggs now easily and fast.
The pistol-formed device has to be hold at the handle with one hand, with the other hand the sucktion ball has to be pressed until the unit overflows at the tube end. Now, each egg can be avised with the sucktion pipe and if the button at the handle is pressed, it will be sucked into the plexiglass collecting unit.
With some experience, it is possible to work with this device fast end exactly. Where no automatic sorting machine is available, it is the best professional device for sorting Salmonid eggs manually.

AUTOMATIC FISH EGG SORTER with fiber optics and infrared light

Egg SorterThis egg sorting machine uses the most current technology to sort 100,000 eggs per hour. It is available with both live and dead egg counter or also without counters. Using the patented standard disk, the egg sorter will sort salmonid eggs from 5,000-18,000 per kg (150 to 500 per ounce), or if equipped with the salmon disk, it will sort any size salmon egg. Best of all, you never have to change disks to handle different sizes of eggs. The patented technology uses fiber optics and modulated infrared light to scan the egg and assure the highest level of accuracy (approx. 98-99 %). It has been used all around the world and will accommodate any local voltage. In the interest of safety and reliability, the local voltage is reduced to 12 volts DC. It has dimensions (LxWxH) of approx. 78 x 35 x 27 cm (32 x 14 x 11"), a weight of 23.4 kg (52 lbs), and an egg tank capacity of 19 liters (5 gallons) and is made of clear and white acrylic plastic.
Eyed eggs are placed in the trough with water flowing through the bottom. Several kilogram of eggs may be loaded at one time. The water flushes the "eyed" eggs against the patented disk where they are captured in the tapered holes in the outside of the disk. Once the egg sorter is fitted with the disk matching the type of egg you are sorting (trout or salmon) it will sort any size egg inserted. The eggs in the disk then pass an electronic scanning device which, using modulated infrared light, detects dead eggs. All with 100 % ambient light immunity. Dead eggs are then ejected out one side of the sorter while the live eggs travel to the opposite side where a gentle flow of air ejects them into a curtain of water which carries them to a separate container - safe, sound and ready for further incubation. The counters then increment, providing accurate totals of both live and dead eggs sorted. Each time a dead egg is detected, a light comes on giving you visual assurance that everything is working correctly.

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Feeding Systems


Model Superspreader with 95 l hopper and tube holderThis "Solaris" Feeding System was designed and constructed to the latest specifications in the field of aquaculture economics by using the most modern components of present day technology.

The model "INTERVAL" is equipped with a solar panel, a feeding computer and accumulator (to balance weather depending days) which is mounted in a splash proof box (directly on the feeder) and can be adjusted exactly to feeding intervals, quantity and time. The daily feeding amount (1-5 mm Pellet) is adjustable from 0,1 kg up to 100,0 kg/day.

The model "SUPERSPREADER" is equipped with an adjustable sector and/or round spreader (radius adjustable approx. 2-8 m and up to 20 m on request), and delivered with a larger solar panel and stronger accumulator.

The model "UNIVERSAL" has a larger outlet and can additionally be used for granulated seeds or meal feeds and pellets up to 12 mm.

The white or green feed hoppers are available in five sizes (for 15, 25, 45, 75 or 95 liter). As accessoire a tube or ring holder hopper support is available.

All models are also available without solar panel and accumulator, for the connection to a central power supply with transformer and distributor box (for up to 1 and 8 or 24 feeders).

For this central timer and distributor box we also provide special hatchery feeders.

Electric Hatchery Feeder incl. 2,5 l hopper (new version)The model "HATCHERY" is a disc-feeder with a 2,5 l volume feed zylinder and was developed for feeding the finest fry food up to 2 mm pellets in the hatchery. The feeder is suspended above the fry tanks, thus allow you to have sufficient space to work. Power supply is provided via a distributor box equipped with a (220V AC/12 V DC) transformer and a timer. The beginning (i.e. morning) and the end (i.e. evening) of the feeding period are set on the timer. The distributor box automatically issues a pulse which switches the motors of all (up to 24) connected feeders on simultaneously for a short time to move the conveyor disk(s). The interval between pulses is infinitely adjustable from 0,1 second to 10 hours. For individual feeder dosage, the slot between conveyor disk and the plexiglass zylinder can be adjusted. For this purpose, slacken the adjustment screw (turn counterclockwise), turn the conveyor disk cklockwise (the slot becomes smaller), or turn it counterclockwise (the slot becomes wider), and inaly re-tighten the adjustment screw.

AUTOMATIC FEEDERS with integrated battery

Modell Battery with 40-220 l hopper, timer and ejectorThis independent feeders where developed in Austria and are successfully used since more than 20 years in small to large fish farms. The user friendly feeding system with patented mechanism (spindle) allows easy feeding and supply of food to day- and night active fish or other animals. They can be powered by usual (Mono D) batteries (3 to 12 V/DC), which are supplied with the feeder. Because of the optimized system, the batteries have a long self-live, depending on feeding times and durance, usually about one season (often also over 1 year). The timer clock with battery tester, which is integrated in the hopper, allows exact settings of feeding times and pauses. The feed supply can be regulated by a turn-able knob and ranges from about 1 to 500 g per hour. Standard particle or pellet sizes of feeds can range from 1 to 5 mm, smaller or larger food particles (also corn or other seeds) are possible optionally. The robust, grey plastic containers (made from polypropylene) guarantee for a long life of the feeder. The standard feeders range from hoppers with a volume of 10 to 260 litre (larger hoppers are possible on request). The larger feeders (from 40 litre volume onward) are also available with an integrated ejector-mechanism, which ejects the dry-food 3-6 m (optionally up to 8-12 m) in front of the feeder. The feeder is usually placed on the edge of a tank or above a dock and fixed via the two mounting holes on the sides. Optionally photovoltaic panels are available. All feeders are also available without batteries, and with or without timer, for the connection to an electric network with transformer (220 V/AC to 12 or 24 V/DC).


Pneumatic feederThis easy to use and very robust pneumatic feeder, is specially recommended for feeding on ponds or raceways, where large feeding areas (up to 10 m2) and a wide feed distribution (up to 12 m) are necessary. The compact and lightweight container made from stainless steel is suitable for the rough conditions in the field outside. It has a capacity up to 120 kg of dry food, has 2 extendable pipe outlets with distributor plates and contains also the blower (220 V/50 Hz, max. 375 W) and a timer etc. The timer allow to set up to 4 feeding times per hour, and the feeding time can be adjusted undependen. The feed quantity and be additionally changed at the 2 pipe outlets by a screw. The whole feeder has a diameter of approx. 70-75 cm, a height of max. 1 m and an empty weight of approx. 30 kg.

BELT FEEDERS with strong clockwork

Uhrwerk-BandautomatSince more than 30 years this feeders are in use for save and exact feeding of fish fry and fingerlings. The clockwork runns over (12 or 24 hours) and is started if the belt is returned (in the morning) where the feed (up to 3-5 kg) is placed. The new clockwork with strong and corrosion free steel spring and splashproof acryl cover as well the plastic box lasts best the weather conditions and guarantees a long live of the feeder.
The feeders are available in 2 sizes and have dimensions (L x W x H) of 560 x 200-300 x 150 mm (weight approx. 2-3 kg) and can easily used at any place without electric energy, like nursing ponds. Electric beltfeders (12 V/DC) with or without solar panel, on request.

AUTOMATIC FEEDING DEVICE for frozen zooplankton

Planktonfeeder20 years world wide experience in the field of plankton research, catch and larval feeding are the basis of the new "Plankton feeder", which was developed with the Institute of Fish research.
This device is designed for the professional application of frozen zoo plankton as a larval diet in marine and fresh water hatcheries for the production of high quality fingerlings like: Coregonids, Chars, Grayling, Salmon, Sturgeon, Sea bass, Sea bream, Turbot, Grouper and other species. The technique is based on a timed "wash down" of feed layers from large frozen plankton crumbs (up to 20 kg) and homogeneous distribution of the thawed plankton rations to the larval tanks by a specially developed self cleaning distributor. "Wash down" of the food layers and thawing can be performed either through spraying or by flooding or by a combination of both facilities, the remaining plankton is frozen immediately. The feed particle size can be perfectly adjusted by a special sieving unit. In order to avoid membrane damage and leaching effects of the thawed plankton organisms, the feed is distributed to the (up to 32) larval tanks by gravity flow only. Automatic feeders for live zooplankton (Artemia), on request.

Feeding cannons or feeding roboters, on request!.

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Transporting Systems


Isolated Transport TankThis professional tanks for the long distance transport of live fish are made of strong doubble wall reinforced glassfibre polyester in white colour, isolated with 2 cm thick foam panels and metal fittings made of stainless steel. On the top, the tanks have an anti-slip surface, which makes it possible to walk and service them safely. For the save transport they also have a well closing splash-proof cover, air and oxygen connections as well as a handle. The tanks have a 2" outlet and a water-proof hatch for water drainage or exchange, situated on the front wall. A large outlet gate with inner closing door allows easy emptying the tank of fish and water. As option theese tanks can be supplied with dividing inner middle wall and a second outlet gate. As accessoire mounting corners, an outlet chute or an outlet funnel with pipe adapter are available.

The following types are available as standard:

TT0800   800 120(137)   90 85(101) 75x60 33x29 115
TT1000 1000 130(147) 100 85(101) 75x60 33x29 125
TT1200 1100 170(187) 105 75(100) 75x60 40x29 150
TT1400 1350 170(189) 105 90(114) 75x60 33x29 165
TT1600 1600 210(227) 105 88(112) 110x75 40x29 175
TT2200 2200 222(241) 105 113(137) 110x75 40x29 205
TT2400 2250 222(241) 105 112(136) 75x60 33x29 215
TT2800 2800 222(241) 105 136(160) 75x60 33x29 225
TT3000 3150 222(241) 105 152(176) 75x60 33x29 235

The numbers in brackets are overall dimension with gate and cover.

FISH TRANSPORT TANKS to customer design

Customized Transport TankThis individual tanks for the save transport of live fish are made of reinforced glassfibre polyester with a smooth surface in the colours white or green. To use the space of the transport vehicle more economically all tanks can be manufactured to customer design with your individual layout dimensions. All tanks are suplied with well closing, removable cover and lid as well as hand grips. As option theese tanks can be supplied with slanting inner bottom and splash protecting top and with drainage valve with sieve and outlet gate with door. As accessoire installed (12 Volt, DC) circulation pump systems or compressors with diffusers, pressure reducers with flowmeters, oxygen cylinders or liquid oxygen units are available.


Transport tank for the forkliftIn order to move and release live fish easy inside the farm we offer this Austrian development. The container is made of 5 mm strong aluminium (LxWxH 180x110x65 cm, weight approx. 170 kg) with cover and has special supports for a forklift. A water tight outles sluice and the draining bottom allow to empty the container easily and save until the last fish. An out- and overflow valve with water hight regulation allows an easy water replacement, even with fish inside the container.

LIFTING NET with automatic lock

Lifting net in useThis lifting nets can be used perfectly to harvest larger fish quantities gently from raising- or holding-units.
The fishes are harvested directly with the lifting net from cages, tanks or other systems where the fish are allready keeped in high density by using a cran (see picture). For opening the base of the net, simply the rope of the automatic lock is pulled, and the fishes are released gently.
The lifting net has a diamter of 1 m and is available with different outfitts (just with 50 mm outer net, and with or without tapaulin inside, and with or without 10 mm inner net. It will be delivered completely with single or doubble frame made from aluminium or galvanized steel, ropes and automatic lock.

LIFTING DEVICE for live fish

Lifting deviceThis lifting devices which work with an "Archimedes Screw" of 38 cm in diameter and are suitable for up to 6 t/h of any fish species and sizes between 3 and 3000 g. They are mobile and used mostly  for indoor or outdoor transportation of live fish, from and between ponds, raceways or net cages etc. to graders, transport tanks or slaugtering. The frame guarantees easy regulation and indication of the screw angle and allows to place it in various positions. The device outlet is designed in a way that it can be connected to a pipe system.
The lifting devices are complete equipped with: screw made of durable fiberglass reinforced polyester, frame construction made of stainless steel, wheels made of hot-galvanized steel, firmer and electric motor (380 V 0.7 kw) and available in lengths of 4, 5, 6 or 7 m for a lifting height of 2-4 m. Lifting devices with larger screw diamter, on request.

IMPELLER PUMPS with or without seperator

Impeller Fish PumpThis newly developed impeller fish pump is specially suitable for loading live fish of 5-500 g from production units up to 6 m in height to grading machines, holding basins or transport tanks. It works with two electric motors (0,75 and 5,20 kw - 400 V/50 Hz) for fast prime- and maindrive (200-750 RPM), and a direcly connected mainainace free gear drive and reachs a fish loading capacity of up to 8-10 t/h. The inlet- and outlet conecctions have a diameter of 150 mm (6"). The electric box can be controlled directly on the panel or by the supplied remote control unit (reach up to 30 m). The fish pump made from stainless steel is mounted on a moveable trolley made from aluminium, fitted with 2 inflatable tires (40 cm diameter) and an adjustable stabilisator foot, as well as 2 handles. It has oveall dimensions of (LxWxH) 176x86x106 cm and a weight of 200 kg, delivered complete with 2 camlook units and an intake strainer. Flexible hoses and a seperator unit which seperates fish from water is available as accessoire.

VACUUM PUMPS with or without lifting system

Vacuum fish-pump with automatic weighting systemAdjustable fish sucking vacuum pump for loading of transport tanks (on truck). With two (hot galvanised or for saltwater in stainless) steel vacum tanks (200 liter each) that suck and discharge alternatively, vacum-pump (with double air-cooling) and 1 HP air compressor for pneumatic movements, automatic electrical regulation and 10 HP motor (220/380 Volt, 50 Hz, or different on request). The (up to 6 m) sucked fish are seperated from the water through a (hot galvanized or for seawater in stainless) steel grill separator and thus send into a container connected with a weight indicator with electronic digital display, programmable either on loading quantity or working time.
On request the draining height is also adjustable between 1,35 and 3,05 meter trought an hydraulic power plant driving a piston that lifts and lowers the whole structure. By dimensions of 165 x 430 x 340 cm (maximum height 5,1 m) and a weight of 1.550 kg up to 15.000 kg of fish up to 1,5 kg (on request up to 3,0 kg) can be moved.

VACUUM PUMPS with or witout weighting system

Vacuum pump with scale

For the lifting of fishes to grading machines and/or the loading of transport tanks etc. this fish vacuum pump is especially suitable. The functional principle is relative easy but effective, which helps to reduce unnecessary breaks and expensive repairs. The fishes (up to 5 kg in body weight and up to 16 t/h) are sucked up to 5 m in height, via an inlet funnel over a suction hose (6 m long) by two vacuum tanks (each 150 l) which work in exchange. By a 0.6 m2 large separator with 8 mm grid distance, the fishes are separated from water and glide so, in the optionally connectable scale or directly into the grading machine etc. The fishes leave the unit by a hose connection (200 mm Ø), which can be adjusted in height from 90-150 cm. The live fish pump has dimensions (L x W x H) of 360 x 115 x 230 cm) and a weight of approx. 650 kg. The motor (380 V/50 Hz, 4.0 kw) is integrated into the housing. The 3 transport wheels and telescopic legs guarantee that the unit stands well and safe.
As Option, there is a scale available, which can be operated (manually) alone over an inlet funnel or also (automatically) in combination with the vacuum pump. The fishes (up to 1 kg in body weight and up to 6 t/h) leave the scale over a hose connection (200 mm Ø). The weighting results (accuracy +/- 50 g) can be added and easily read from the display. The fish scale has dimensions (L x W x H of 165 x 103 x 165 cm) and a weight of approx. 190 kg. The motor (380 V/50 Hz, 0.1 kw) is integrated into the housing. The 4 transport wheels with fixable legs guarantee that the unit stands well and safe.

MANUAL GRADING DEVICE for fry and fingerling

Grading deviceOriginally developed at the Austrian Institute of Fisheries Economy in Scharfling, this simple but effective sorting device is perfectly suitable for sorting of fry and fingerlings in small to medium fish hatcheries and allready used for centuries. The distances of the grating can be easily adjusted by shaping the device to a rhomb. The seawater resistant impregnated wooden frame keeps floating and an exact distance between the auluminium grates. The device is placed in one tank, than fishes are just put into the device, the smaller fish go thru the grates while larger ones can't pass and are placed in another tank. For grading into more than 2 size classes, the grates are enlarged by simply pushing the whipable scale-bar, and so on.

Available in two sizes:

Type Small Large
Device size cm



Grading thickness mm



AUTOMATIC SORTERS with turning rollers

Automatic grading machine with fish pumpThe automatic grading machines for life fishes works with a revolving rollers-system and a free adjustable grading process for 3 grads and outlets (120 mm Ø). Adjustable stainless steel rollers are drived by a 0,5 HP (220/380 Volt) geared motor reducer. A self priming 3,0 HP (220/380 Volt) pump which is available as accessoire, supplies the water (900 liter/minute), to the rotating rollers and flushes graded fish down to the three outlets and to be piped by gravity to the receiving tanks or ponds. It is able to make three contemporaneous selections from 4 to 40 mm thickness. Stainless steel movable discharge outlets that can be used whether on the left or on the right side of the grader. As standart, all parts as: electrical control panel, flexible suction intake with terminal filter and three flexible connecting pipes for the discharge outlets. All machines are mounted on a hot galvanized steel trolley with three wheels, adjustable supports and shaft.

Typ ALFA has dimensions of 195 x 75 x 110 cm and a weight of approx. 200 kg, and is used for fingerlings (sorting distances 4 to 14 mm). The grading capacity is up to 1 t/h.
Typ STANDARD has dimensions of 280 x 110 x 130 cm and a weight of approx. 400 kg, and the fish can be supplied by hand or by an external fish pump. The grading capacity is up to 3 t/h.
Typ GIGANT has dimensions of 360 x 140 x 140 cm and a weight of approx. 600 kg, and is like Typ Standard, but the grading capacity is up to 5 t/h.
Typ COMBI has dimensions of 400 x 175 x 200 cm and a weight of approx. 800 kg, and is equiped with a (5,5 HP 220/380 Volt) aluminium fish-pump wich draws the fish directly from the pond or raceway, seperates them from the water and feeds the grader. This pump embodies a revolutions variator (adjustable by means of a handle), wich enables the head and the loading capacity (up to 7 t/h) to be regulated.

AUTOMATIC GRADERS with moving fingers

Grading machine

This graders are made of aluminium and stainless steel and are available for various fresh- and sea- water fishes from Salmoniformes and Cypriniformes to Perciformes etc. The grading technology is based on 3 V-shaped channel with moving plastic fingers below, which moves the fish until the channel is too wide for the fish thickness and the fish are released to the collecting tanks below, from where they are flushed with water to the outlets, and additionally by pipes back to the holding ponds. During the whole grading process the fish are keept wet by water. The machines are mounted on a trolley with 3 wheels. Equipend with 380 V/50 Hz motor (230 V on request).

Type/Modell H10 H25 H40 H50 H60
Grads 4 3 4 3 3
Fish Size 1-100 g 5-500 g 10-1500 g 10-2500 g 100-5000 g
Capacity max. 1 t/h max. 3 t/h max. 7 t/h max. 9 t/h max. 11 t/h
Channel size (LxW) 1600x28 mm 2000x42 mm 2500x65 mm 2400x75 mm 2400x120 mm
Outlets 8x125 mm 6x160 mm 8x200 mm 6x250 mm 6x250 mm
Size (LxWxH) 3,3x1,0x1,4 m 3,0x0,9x1,1 m 3,9x1,0x1,3 m 3,7x1,2x1,5 m 3,7x1,2x1,5 m
Weight 260 kg 150 kg 400 kg 500 kg 500 kg
Power 0,25 kw 0,18 kw 0,37 kw 0,55 kw 0,55 kw
Pump capacity 20 m3/h 20 m3/h 40 m3/h 50 m3/h 60 m3/h

Graders with integrated fish counting systems on request.

ELECTRONIC COUNTERS for fry and fingerlings

Fry Counter Type MicroThis fry counters have been developed with particular emphasis on well-being of the fish. The counters operate according to the "free-swim" principle: the fry or fingerlings (0,2-70,0 g depending on species) are in their natural element all the time and swim through the counter unit by instinct. Thus the counting will in no way cause stress to the fish. The counters have patented nozzles that seperate the fish by means of water so that each of them passes the photoelectric cell - a simple and reliable way of counting the fry with 98-100 % accuracy. The counters are fitted with reliable electronic components with memory. The electronic cylinder operates on chargable batteries but may also be connected to 220 V/50 Hz. Sensor unit and electronic cylinder are both water-resistant. The counters are easy to use and to handle. No division according to size is required and only one person is required to operate or move the counter.
Each counter includes a stainless steel water pump (220-240 V/50 Hz, 940 Watt, 11 kg with a capacity of 12 m3/h), and frame to mount the counter on the edge of a tank or placing it in a tank or cage. As accessoire kits are available to count fry from 0,2-0,5 g and also flatfish.

Type Micro Minni Medium
Fish size g 0,5-5,0 5,0-50,0 5,0-50,0
Capacity/h 30.000-35.000 5.000-30.000 25.000-60.000
Dimensions (LxWxH) cm 77x64x47 104x79x80 40x25x90
Weight kg 10 15 15
Nozzles mm 13, 17 and 23 35 and 48 35 and 48
Mounting Box Floats Hooks

FISH COUNTERS for graders or pipes

Fish CounterThis newly developed fish counter series made of aluminium and plastic was specially developed to count fast (about 4 t/h) and accurately (over 98 %) live fish like salmonids, cyprinids and percids (from 5-5000 g) after an automatic grader. The cunter is simply connected to the outlet tube of the grader or any other tube.. Provided with programmed intelligence, the fish counter performs various controls (autotest) and informs the user in case of faillure. The electronic display provides the following informations: number of fish counted, status and degree of sensivity selected. The two new sensors with transmitter and receiver modules are mounted into a slide and are provided with an electrical connector. The graphic display and the power supply cable are also equipped with an electrical connector (Input 90-220 VAC/15 VDC). The various connectors are connected in the junction box of the main module. All electronic parts are sealed, easily removable and replacable by the user. The counters are available for fresh- or seawater use and supplied with a set of seperators and two support legs. A reception tank/funnel with 160/200 mm diameter pipe connection is available as accessoire.

The following types are available as standard:

Typ FC2 FC4 FC8 FC12
Channels numbers/Wide mm 2 x 210 4 x 100 8 x 50 12 x 30
Fish size approx. g 300-5000 30-1000 5-100 1-15
Dimensions (LxWxH) cm 125x46x38 125x46x33 125x46x33 125x46x33
Weight kg 18 18 23 18
Connection mm 200 160 160 160


Fish Scanner with control unitThis fish scanners are based on a patented counting principle which gives both high capacity and accuracy (98-100 %). The fish flows freely through a pipe and passes an advanced camera/measuring system (CCD Camera chip) which will register the size and speed of the passing fish. The resulting data is then transmitted to a control unit which may handle as many as 4 channels (e.g. during grading) simultaneously. It is not necessary to have any space between the fish passing simultaneously. The robust and reliable electronics of the system will always provide the total number of fish passing through the unit. The splashproof counters are easy to use and suitable for direct fish pump or grading machine feeding. Optionally an easy-to-use PC software which will in addition to presenting the accurate number, give you all the information you need from the counters. It gives you real time monitoring with key features like: number, weight (average/total/distribution), speed, efficiency, Reg. Unit status, lens check, systems log and printing the results.
The control unit (dimensions WxHxD 28x13x37 cm, weight 5 kg) is made from powder-painted marine aluminium case which is sturdy, splashproof and user-friendly. The power supply is 100-240 VAC 50/60 Hz (consumption 10-33 Watt), 12 or 24VDC (150 Watt power inverter available as accessoire). The input channels can power and control up to 4 CSE or 2 CSF registration units at the same time. It has fluorescent buttons and backlit display, and also connectors for auxillary equipment like PC, and PLC control etc. The adjustable carrying handle can also lift the front of the control unit (to approx. 10º, 30º and 45º) for easy operation and a better view. As options an external siren (115dB) and a PC monitoring system (requires a COM-cable) is available. The control unit can easily be connected to a PC to monitor and log the counting.
The CSE-units are used for "dry"-counting (pipe 0-25 % full of water through the unit) and suitable for many applications.
The CSF-units are used for wet-counting (pipe 100 % full of water through the unit) and suitable for special applications.
All registration units are delivered with 10 meter cable, other lengths available on request.

Technical data:

Reg. Unit CSE CSF
Weight CSE1600: 14 kg
CSE2500: 23 kg
CSE3150: 26 kg
CSE3500: 32 kg
CSF1600: 25 kg
CSF2000: 35 kg
CSF3150: 65 kg
CSF3500: 80 kg
Dimensions (WxHxD) CSE1600: 315 x 410 x 235 mm
CSE2500: 410 x 610 x 265 mm
CSE3150: 450 x 650 x 320 mm
CSE3500: 510 x 780 x 330 mm
CSF1600: 698 x 698 x 186 mm
CSF2000: 818 x 818 x 186 mm
CSF3150: 1070 x 1070 x 212 mm
CSF3500: 1200 x 1200 x 212 mm
Flange connection - Inner pipe diameter CSE1600: DN150 - 150 mm
CSE2500: DN250 - 240 mm
CSE3150: DN300 - 300 mm
CSE3500: DN350 - 350 mm
CSF1600: DN150 - 150 mm
CSF2000: DN250 - 240 mm
CSF3150: DN300 - 300 mm
CSF3500: DN350 - 350 mm
Capacity (approx.) CSE1600: 20 000 fish/hour
CSE2500: 20 tonnes/hour
CSE3150: 25 tonnes/hour
CSE3500: 30 tonnes/hour
CSF1600: 10 tonnes/hour
CSF2000: 30 tonnes/hour
CSF3150: 100 tonnes/hour
CSF3500: 130 tonnes/hour
Fish size CSE1600: 1 g - 1 kg
CSE2500: 2 g - 7 kg
CSE3150: 3 g - 12 kg
CSE3500: 10 g - 18 kg
CSF1600: 1 g - 1 kg
CSF2000: 2 g - 7 kg
CSF3150: 3 g - 12 kg
CSF3500: 10 g - 18 kg
Power consumption CSE1600: 10,0 Watt
CSE2500: 15,5 Watt
CSE3150: 15,5 Watt
CSE3500: 17,5 Watt
CSF1600: 21,5 Watt
CSF2000: 21,5 Watt
CSF3150: 32,5 Watt
CSF3500: 32,5 Watt
Options Flange to pipe adapters (polyetylen):
CSE1600: PEDN150, L=50 cm
CSE2500: PEDN250, L=50 cm
CSE3150: PEDN300, L=50 cm
CSE3500: PEDN350, L=50 cm
Flange to pipe adapter with de-watering:
CSE1600: PEDN150, L=100 cm
Video system:
An affordable reassurance that everything is right during counting.
Includes a b/w videocamera mounted inside the top of the Registration Unit and a 12" b/w monitor. The monitor has two input channels for connection of two Registration Units/video systems.

UNIVERSALSCALES with display post

Sesk scale with postThis certifyable desk scales made from stainless steel are splash protected (protection class IP-65), strong and robust . The illuminated multy-display with 25 mm LCD-display, 5 function buttons, and 35-70 cm high post, as well as tara-, count-, percent- and add- function allow an multifunctional use. The display can run continuously or switch of after an adjustable time. The models have 4 adjustable feets, a RS232 output for a printer and an IR input for a remote control (not included), for an energy supply of 230 V/50 Hz). Desk scales for battery operation, on request. Optionally therse scales are available with certificate.

The following models are available as standard:

Model WE-6/15 WE-30/60 WE-150/300
Range to 6/15 kg 30/60 kg 150/300 kg
Division 2/5   g 10/20   g 50/100   g
Platform 30x30 cm 40x40 cm 60x60 cm

UNIVERSAL SCALES with flat platform

Universal scale with platformThis new scales with stable base, 4-cell measurement technique and corrosion free platform made from stainless steel (70 mm high) are universally to use. The display (27 x 9 x 4 cm) with 25 mm LCD digits, 100 % tara function and 1,8 m spiral cable can also be mounted on a wall (angle adjustable). It is possible to select continous display or automatic switch off. The energy supply over an rechargable accumulator with charger allows a mobile use. The models have two inserted transport wheels on the side and on the opposide side a hand grip.
Optionally the scales are available with wireless display.

The following models are available as standard:




Range to 150 kg 300 kg
Division 50   g 100   g

900 x 550 mm

CRANE SCALES with security hook

Crane cale with hookThis stable and professional hanging scales with robust cover made from aluminium (approx 260 x 195 x 210 mm) are equipped with a 360 degree turnable security hook which is produced for 150 % over load and 500 % breaking strength. The 30 mm large LCD-display with illuminated digits, has an automatic tara function. The weight fixing function allows to weight the goods also during swinging load. The energy is supplied from a rechargable accumulator with charger. All models models are suitable for the use with a remote control.

The following models are available as standard:

Model CS-3000 CS-5000 CS-9000
Range to 3000 kg 5000 kg 10000 kg
Division 1000   g 2000   g 5000   g
Weight 14 kg 24 kg 35 kg

We deliver other scales, for ranges up to 10 t or a division from 0,01 mg on.

MOTOR PUMPS for any purpose

MotorpumpeThis self priming, compact and engine driven pumps are specially suitable for the use in aquaculture, agriculture and industry and can also pump sludge or small stones. Driven by a strong and economic 1-cylinder 4-stroke petrol motor, this centrifugal pumps are environmentally friendly and reliable. A transistor controlled starter guarantees easy running also after longer pauses. Typ WH is for higher pressure and Typ WM is specially suitable for seatwater and chemicals as the pump casing is made from polyester. The types WT are for waste water and stones up to 3 cm diameter available. All types (except WX) are bordered with a strudy frame. All pumps are delivered completely with pipe connections and ground filter.

The following pumps are available:

Type/Modell WX 10 WX 15 WB 20 WB 30 WM 20 WH 20 WT 20 WT 30 WT 40
Pumping volume l/min 140 240 600 1100 850 500 650 1300 2300
Pumping height max. m 35 40 32 28 32 50 26 30 29
Suction height max. m 8,0 8,0 8,0 8,0 8,0 7,5 8,0 8,0 8,0
Connections mm/inch 25/1,0 38/1,5 51/2,0 75/3,0 51/2,0 51/2,0 51/2,0 75/3,0 100/4,0
Motor kw/HP 0,8/1,1 1,8/2,5 2,9/4,0 4,0/5,5 4,0/5,5 4,0/5,5 4,0/5,5 5,9/8,0 8,2/11,0
Tank volume liter 0,6 1,2 2,5 3,6 3,6 3,6 3,6 6,0 6,5
Consumption liter/h 0,5 1,1 1,1 1,5 1,6 1,6 1,6 2,0 3,3
Weight kg 7 10 21 27 26 27 38 58 68
Lenght cm 33 33 47 51 52 52 62 66 74
Width cm 22 28 35 38 40 40 46 50 54
Hight cm 33 38 36 45 45 45 47 52 57

PROPELLER PUMPS for much water

PropellerpumpeThis single stage pumps with open axial propeller are suitable for less poluted water with suspended solids of up to 50 mg/l and a water temperature of up to 25 °C. The left running motor (380/400/500 V, 50 Hz, 1450 RPM, power factor 0,83-0,87 cos) has a failure runner and waterproof coiling. The motor is capulated by a glide seal, the axial and radial wave bearing in water lubrificated glide bearings. The propeller is made from bronze (CuSn10), the radial bearings from bronze and stainless steel, and the bolts and screws from stainless steel (V2A). All pumps are made according to DIN EN ISO 9906 class 2, protection art IP68) and are suitable for endurence runn, timed operation or frequenz regulation and are supplied with 10 m dircetly connected waterproof rubber cable. The installation can be in any angels, horizontally and vertically, as well as submerged hanging or free standing. The connection flange is C 200-300 DIN.

The following models are available:

Typ PO-200 PO-250 PO-300
Capacity m3/h 150-320 0-620 0-1000
Pumping height m 5,5-3,0 9,0-0,0 23,0-2,8
Suction height max. m 1,0 2,0 3,0
Power kw 5,0 9,2 30,0
Weight kg 220 270 590

The standard outfitt has a casing of painted grey-glue metal (GG25). Casings in aluminium or bronze are possible on request. A nieveau regulation, frequenz control, motor monitor and operation counter are available as accessoire.

SUBMERSIBLE PUMPS for endurance run

Submersible PumpsThis for the mobile and static operation developed submersible pumps have a special sealing and lubrificated bearings for the maintainance free endurance run in any position. Pumped can be all liquids with a weight of max. 1.100 kg/m3, up to 40 degree C and a pH-value between 4-8. The motor (2850 RPM) is available for 400 V/50 Hz as standard (other voltages on request). A thermal protection and a doubble case chooling  protect the motor from overload (Protection IP68). On request the pumps are available with an extern ior build in floating switch, so that the pumps work only when it is necessary. The pumps are delivered with wheel in plastic (steel on request). Also seawater resistant outfitt after German Lloyd and Lloyd’s Register of Shipping are possible.

The following pumps are available:

Type/Modell C-90 C-70/1 C-70/2 B-60/1 B-60/2 A O
Pumping volume m3/h 0-50 0-24 0-35 0-60 0-80 0-160 0-450
Pumping height m 13-0 15-5 20-0 18-0 25-0 38-0 24-0
Power kw 1,3 1,1 1,5 3,0 4,0 7,5 15,0
Particle size mm 10 5 5 10 5 7 7
Hight cm 51 48 48 63 63 74 82
Weight kg 22 24 24 45 45 85 185


Underwater pumps for pipesThese compact submersible pumps in new design with more stages are maintenance friendly, and are developed for long resistance. As all metal parts like: housing, cable cover, motor adaptor, wheel, valve, inlet screen and outlet connection cable including couplings are made from stainless steel (AISI 304), these pumps are complete resistant against rust. Propeller and diffuser are made from Polycarbonate, the bearing from Polyurethane, and the sealing from special rubber material. The maximum outside diameter of these pumps is 99 mm or 4 inch (3 or 6 inch on request), so that they fit into a pipe. The outlet connection is 1-2 inch and the length of the pumps is 695-2368 mm and their weight 11-52 kg (depending on types).

The following types are available:

Typ kw stages m3/h Capacity at 2850 RPM






3,0 3,6 4,8 5,4 6,0 7,2


2GS02 0,25 5 Meter 33 30 28 26 20 13            
2GS03 0,37 7 Meter 47 42 40 36 29 19            
2GS05 0,55 10 Meter 67 60 56 52 41 27            
2GS07 0,75 14 Meter 93 83 79 73 57 37            
2GS11 1,10 20 Meter 133 119 113 104 82 53            
2GS15 1,50 28 Meter 187 167 158 146 115 74            
2GS22 2,20 40 Meter 367 238 226 208 164 106            
2GS30 3,00 52 Meter 347 309 294 271 213 138            
4GS03 0,37 4 Meter 27     24 23 21 19 13 9      
4GS05 0,55 7 Meter 47     42 40 37 33 22 15      
4GS07 0,75 9 Meter 60     54 51 47 42 28 19      
4GS11 1,10 17 Meter 94     84 80 74 66 44 30      
4GS15 1,50 19 Meter 127     114 108 100 89 60 40      
4GS22 2,20 27 Meter 181     162 154 142 127 85 57      
4GS30 3,00 34 Meter 228     204 194 179 160 107 72      
4GS40 4,00 48 Meter 322     288 274 252 226 151 102      
8GS07 0,75 4 Meter 26           23 22 21 20 18 15
8GS11 1,10 6 Meter 39           35 34 32 29 27 22
8GS15 1,50 8 Meter 52           47 45 43 39 35 30
8GS22 2,20 13 Meter 85           76 73 69 64 57 49
8GS30 3,00 17 Meter 111           100 95 90 83 75 64
8GS40 4,00 23 Meter 150           135 129 122 113 102 86
8GS55 5,50 32 Meter 208           187 179 170 157 141 120
8GS75 7,50 43 Meter 280           252 241 228 211 190 161

MULTI PUMPS for many applications

Multi PumpThis pumps with vortex propeller made from plactic can be mounted and used submerged inside the water (wet) as well as free standing outside the water (dry) and are suitable for particles up to 6 mm. Because of the strong ceramic bearing they are suitable for endurance runn. All electric parts are enbedded completely in plastic and a thermo-switch works as a overload protection. The split-pipe motor (220-240 V, 50-60 Hz) is specially energy saving and very maintenance friendly. The large prefilter caps (front and back) can be removed without any tool. The connections (pressure/suction) have 1,5 - 2,0 ". The pumps of this seria have compact dimensions and can be used for fresh and salt water. They are deliverd complete with 10 m cable and plough, as well as mounting feets and handle.

The following models are available:

Typ MP/Capacity l/h 20000 26000 33000 40000
Pumping height max. m 6,5 7,7 9,5 8,5
Power consumption Watt 400 510 620 650

We deliver also other pumps, for up to 500 m3/h or for over 100 m in height.

Diesel-Generators 8-16 KVADIESEL GENERATORS for endurance run

These compact synchrony-generators are more powerful than asynchrony-generators. Motor, generator and exhauster are water cooled and need no air ventilation. The cooling water can be used for heating. They are installed into an encapsulate housing which guarantees low noises (52-54 dB). The units are easy to operate with the supplied remote control unit. The diesel consumption is about 0.3 liter per produced kwh.

The following typs are available:

Typ 4000 8000 12000 16000
Cylinder 1 2 3 4
Power KVA/KW 4,0/3,5 8,0/7,0 12,0/10,0 16,0/14,0
Dimensions LxWxH cm 55x32x52 73x58x65 86x58x65 97x58x65
Weight kg 83 175 210 230

ELECTRIC FISHING DEVICES with direct- or impulse-current

Electrofishing battery devices (250-10.000 Watt) Electrofishing backcarry devices (1.300-3.000 Watt) Electrofishing stand devices (3.000-13.000 Watt)

This save and powerfull electric fishing devices are sucessfully in use on all continents since over 20 years. Through the various and sometimes problematic areas of use, a wide range of devices was developed which will match nearly any requirement.
All devices are build to EN 60335 and EN 55014-standards, IEC and VDE-regulations, and can be TÜV-tested if prefered. The electric building corresponds to security class II. Therefore all power delivering parts are doubble isolated and guarantee the best possible security for persons. A "Totmannswitch" (in the European Union required) guarantees for additional security, so that all outlets of the device are without electric current if dangerous situations arrise. The permanent excited generator and the high quality magnet materials guarantee a continous and reliable power. Each device will be tested mechanically and electrically completely and delivered with user manual.
Dirrect current creates usually a better anodic reaction as impuls current would doe. But at extreme conductivities or for electric barrieres with dirrect current soon the borders are reached. As result, powerfull combinated (Dirrect-/Impuls-Current) devices where created, where the impulse frequenz and volts can be adjusted (via motor turns or switch). The backcarry units are compact lightweight systems with high outgoing power. Impulse devices are a little larger and have a little more weight than dirrect current devices.
We deliver net-, battery- oder petrol-driven backcarry- or stand-devices with dirrect- and/or impulse current with an outgoing power of 250-11.000 Watt (5-160 kw/impuls at 25-100 Impulse/sec.), and a current of 300-960 Volt with a weight of 10-135 kg and for a conductivity of 50-10.000 µS.
As accessoires are available: 30-50 cm Ø Stainlessteel-Anodes with RGP-electro handles up to 6 m in length, Copper-Cathodes with cable and connector, Plastic cable drums for up to 200 m cable, hand- or foot-Totmannswitch, Electro-rubber outfit (tested to 1000 Volt) as well as tanks and lights.

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Processing Systems


Stunning deviceThis device is specially suitable for the fast and easy stunning (electroanesthesia) of fishes (up to 50 kg/cycle) before killing and slaughtering. It works with electricity over a transformer (Input 230 Volt, Output 42 Volt). All parts of the device are made of corrosion free materials. The handle with buttons and lights is made of plastic, the electrodes are made of brass with honeycomb-like plastic cover. The device is available with or without plastic container (approx. 60 l) and cover.
The fishes are placed in a plastic container together with water. For the stunning, both electrodes are submerged into the water and the button is pressed, while the stunning process is controlled by a lamp. To reach all fish correctly by electricity, the electrodes of the device should be moved and turned horizintally. Fishes are anestesized withing seconds and can be killed or slaughtered and gutted thereafter.


Stunning systemThis device is specially suitable for the save and reliable stunning (electroanesthesia) of fishes (up to 200 kg/cycle) befor killing and slaughtering. It works with electricity over a transformer (Input 230 Volt, Output max. 160 Volt) with 3 adjustable regulation knobes for the pre- and main stunning process which alows slowly increasing of the current and reduce internal damage of the fishes. In normal cases the knobe is in the middle position, in special cases i.e. if allways the same fish size or the same fish species are stunned, the knobes allow to optimize the results. All parts of the system are made from corrosion free materials. The container with cover is made from white plastic, the electrodes which are fixed on two sides are made from stainless steel. The containers are available in 3 different sizes (80, 210 or 400 l volume).
The fishes are placed in the plastic container together with water and the cover is closed. The controll box should be mounted dry on a wall. For the stunning, the button on the side of the controll box is pressed, while the stunning process is controlled by a lamp and teminated by an acustic signal.

SPECIAL FISH KNIVES for the industry

Special stainless steek fish knives (from 4,5 to 31 cm) for any purpose!This special stainless steel knives and scissors are designed for long live and resistance to hard wear. Thes can be used for many hours without problem to archive high productivity. The blades are finished by hand with high quality steel - a guarantee for maximum cutting precision and easy sharpening. Either stif or flexible blades are available according to requirements. The ergonomic design of the handles makes them easy and save to hold. The various designs were developed in conjunction with users. They take into account both the type of cutting as well as the size of the user's hands. The special green plastic material used gives the handle its firm hold.

We prepared 3 special fish knive sets for you:
The START Fishknive Set includes: 1 Herring-, 1 Flowcutt-, 1 Fish-, 1 Bone-, 1 Strike-, 2 Slaughter- and 1 Fileting-knive, with blades from 6,5 to 21 cm.
The STANDARD Fishknive Set includes: 1 Herring-, 1 Carp-, 1 Fish-, 1 Cooking-, 1 Stitch-, 2 Slaughter- and 2 Fileting-knive, with blades from 4,5 to 26 cm.
The PROFI Fishknive Set includes: 1 Fishcut-, 1 Eel-, 1 Makerel-, 1 Salmon-, 1 Fish-, 1 Gutt-, 1 Skinning-, 1 Bone-, 1 Strike-, 2 Slaughter- and 1 Fileting-knive, with blades from 5,5 to 31,5 cm.
The COMPLET Fishknive Set includes all 3 sets and the fin-scissor, (30 different special cutting instruments). All models are also available as single knives.

Trimmers for meat preperation, on request.

AUXILIARY FISH GUTTING DEVICES with or without cleaner

Gutting device-stand set (with washing table and rinsing brush)This gutting devices are in use since more than 20 years and a valuable help for small and medium processing plants. They allow to gutt and clean fish (like trout) from 150-1000 g (optionally up to 3000 g) in one rational working process, without give the fish out of the hand. There is also no need for turning over the fish in your hand as all sequences of operation start from the vent. If the operator should slip in the direction of the blade while cutting, an injury can nearly be excluded.
With the adjustable and save gutting blade the ventral wall of the fish is cut starting from the abdomen. As hygiene is the most important factor when processing fish, injuries of the guts are also excluded. The suction head has two scrape edges at its lower rim. While passing through the fish, all remains (like kidney and blood) are removed. By pressing a button, an automatic knive comes down and cuts the gorge, which is than sucked and stored in a container. Optionally, after gutting the remaining blood is removed by the rotating (1500 RPM, 20 cm diameter) round washing brush. The rational working sequences enables one person to process 300-400 fish per hour.
The new reworked and improved version (wall- and stand models) have a gutting head which can be removed without tools and is dismantled in seconds, which allows good cleaning and disinfection. The  removable suction head fitts to usual 120 l waste containers, which allows easy and fast replacing and deposition. Theese stainless steel gutting devices are delivered complete as table, wall or stand units with or without compressor and vacuumcleaner and with or without round rinsing brush.

AUTOMATIC GUTTING MACHINES with fish size adjustment

Gutting machine 1700This compact and robust fish processing machine (for trout and bass) is made from stainless steel and plastic material. A main point at development was the removement of complicated and failing technique. The complete machine operates without hydro pneumatic or electronic elements and is driven by hydraulic pumps, which are integrated in the frame. The machine is (except a mothly oil control at a viewing glas, and the exchange of knives and brushes) nearly maintainance free. Complicated and expensive engagements are not necessary and the function via a push button allows a rentable working. Additional misstakes are impossible as wrong size selection can be avoided with the automatic niveau-regulation. The running speed of the transport chain is as low as possible, to allow to feed the machine with the fish just by one hand. A control line at the outlet side allows an optic control of the processed result, without the need to take the fish in the hand. Bad results (usually approx. 5 %) can be removed here. As the machine works without cross-cutt between gillcovers and pectoral fins, there is no additional waste of fish weight.

The following types are available as standard:

Type/Modell Mini Maxi Vario
Capacity Fish/h max. 1700 2200 3600
Fish sizes g 180-650 350-1000 2000-7000
Water demand l/h approx. 300 500 800
Power (380 V/50 Hz) kw 0,9 3,0 5,5
Weight approx. 150 300 780
Dimensions (LxWxH) cm 150x40x135 250x60x180 580x65x175


Manual scaling deviceThis fish scaling device is well protected from spray water, safe in operation and securely insulated, tested to 4000 V. The 230 V/50 Hz ICE standard 0,1 kw motor can be used continuously. The machine LxWxH of 23 x 24 x 19 cm with a weight of 9 kg, can be connected to a grounded or non-grounded wall socket. The cover of the laminated, flexible axle (160 cm long) consists of two layers of steel, one layer of insulating compound and one layer of plastic. The ball bearings in the top, with which the fish is scaled, are waterproof and all outside parts are rustproof. The device is supplied completely with handle, feets, 160 cm cable and plug.
As accessoire a 6 mm strong plexiglas cover (LxWxH: 84x50x29 cm) is available, under which the fish can be scaled to avoid spraying of scales during scaling.


Automatic scaling machineThe robust, solidly constructed machines with belt drive offer perfect scaling technology, with their design (body in stainless steel, automatic time selector and control valve for reduced water consumption) and complete operational safety (auto-stop control, motor protection, restart protection).
Scaling takes place at the bottom and sides of the machine and offers the advantages of short (approx. 1-5 minutes per scaling cycle), low-noise scaling cycles and reduced water consumption. The water used in the scaling process is accumulated, so that the fish are thoroughly washed and a soft cushion of water is formed. This provides a flexible support and ensures that the scaling action is very gentle (fishes are not exposed to heavy bumps or impacts). The auto-stop control automatically stops the machine when the loading lid, top lid or release flap is opened. Gentle release is ensured because the machine restarts slowly and the start button must be pressed and held down, which is an added safety feature. An automatic shut down with manual restart guards against automatic start-up after a power failure. The scaling machines are supplied either with a karborundum drum for soft fisch or small scales and with a round-hole drum for clams and hard fish or large scales. The machine is also available with a dirty water drain on the left-hand side (standard at the right side).

The following types are available as standard:

Type/Modell 35 S 16 K 18 K 20 K 25 K
Capacity/cycle kg 4 6 10 15 25
Capacity/hour kg 75 150 300 450 600
Electricity Volt 230 400 400 400 400
Rated power kw 0.18 0.25 0.37 0.55 1.50
Water connection DN 15 15 15 20 25
Depth mm 450 372 530 600 735
Width mm 410 435 555 650 750
Height mm 610 855 930 950 1195

FILETING MACHINE for some fishes

Fileting machineThis compact machine allow to fillet all fish with up to a height of 110 mm and a weight of 100-1000 g fast and exact, without gutting the fish. The machine is made of stainless steel and easily cleaned with water. A hight output (approx. 100-200 kg/h) and savety measurements allow a fast working. The compact design (LxWxH: 118x56x127 cm) and the low weight (approx. 88 kg) allow to use it on nearly any place.
With the rotating round-knife, first the head is cut off. Following, the fish is put in the machine head-cut first and belly-up. The fish is now forwarded by special grip belts to the round-knifes and 2 fillets are cut. The cut is adjustable, thus allowing a low waste of meat (Filet approx. 40-50 %). The belly bones have to cut of manually. The skinn can also be removed manually or by skinning machines. A continous cleaning is doen by water spray nozzles. As accessoire an (20-40 degree) adjustable forwarding belt (30 cm/s, wide 35 cm, lenght 140 cm) is available.

FILLETING MACHINE for much fishes

Filleting machineThe transformation of fish into fillets offer an interesting value added profit margin and is directly depending with the filleting costs. This new generation of filleting machines now comes in different sizes, with dimensions suited to various fish sizes and species (Salmon, Trout, Charr, Whitefish, Perch, Pikeperch, Bass, Bream, Mackerel, Bonito, Tuna, Pollack etc.) permitting an efficient filleting of fish with minimum loss of product and high yield production of 50-80 % (Salmonids) of splitted fillets. The productivity depends on the operator skill and process chain but is about 10-30 fish/min (approx. 1-3 t/h depending on fish size). The yield is directly depending on the state of the freshness and consistency of the fish, its fat content and maturity, as well as the cut of the head (I-, C- or V-cut). The simple mechanic solutions based on rigorous geometric principles in combination with a sensitive system to the thickness of each fillet, allow the machine to process fishes of various sizes (from 0.1 to 6.0 kg) without setting changes. The type number means the maximum fish height between anus and dorsum in mm, which the machine can handle. The smart design and sturdy construction (made in stainless steel) insure a long life to meet high conditions and norms of hygiene. All machines work with 2 or 4 blades (and 1 or 2 electric 400 Volt/50 Hz motors), are efficient and easy to clean and maintenance. Each machine has 2 wheels for easy movement. The standard height of the fish inlet is 80 cm and the fillet outlet 77 cm abouve the ground (other dimensions are possible on request). The deheaded and guttet fishes are loaded by hand into the machine. A 10-12 cm high transport belt carefully transfers (approx. 20 m/s) the fish to the round blades knifes which run not parallel but axial. The blades cut the fillets and separate the waste bones, thus saving over 50-75 % of the production time. The filleting machines are available with 2 or 4 blades either for the production of fillets with belly bones (ribs) or for the production of fillets without belly bones (ribs). The water requirement during filleting is about 300-500 l/h. A sharpening tool to use directly on the machine is available as accessory.

The following 2 blade types are available as standard:

Type Fish Weight kg Dimensions (LxHxW) cm Weight kg Blade Ø mm Power kw
SF   65 0,1 - 0,5   50 x 105 x 45   45 170 0,55
SF   80 0,2 - 1,0   60 x 110 x 45   65 210 0,90
SF 100 0,3 - 1,5   90 x 120 x 50   95 245 1,30
SF 130 0,4 - 3,0 115 x 125 x 50 125 300 1,70
SF 145 0,5 - 4,5 120 x 130 x 55 145 330 2,20
SF 180 0,6 - 6,0 130 x 135 x 60 165 400 2,50

The following 4 blade types are available as standard:

Type Fish Weight kg Dimensions (LxHxW) cm Weight kg Blade Ø mm Power kw
AV   65 0,1 - 0,5   85 x 115 x 50 100 210 + 245 0,8 + 0,12
AV   80 0,4 - 1,5 100 x 115 x 50 140 210 + 300 1,5 + 0,12
AV 100 0,6 - 3,0 120 x 120 x 50 160 245 + 300 1,5 + 0,12
AV 135 0,8 - 4,5 140 x 135 x 55 250 330 + 400 2,2 + 0,25

Deheading machines, on request.

BONE CUTTERS for fish filets

Y-bone cutterWith this compact manual devices made from stainless steel, you can cut (Cutting wide 9, 15 or 30 cm) fast and easy the Y-bones in fillets from bony rich fishes (like Cyprinids, etc.). With this cutting in small distances (every 3-4 mm), the numberous Y-bones are chopped in very small pieces, so that they are no longer detected or dangerous in the fillets and can be eaten comfortably with the meat.
With a special adapter (available as acessoire) you can also cut now the fillets in chips or stripes (and, for example serve it fried or on salad).
There is also a stripe or cube cutter available (i.e. for hering or salmon) which saves about 50 % of working time. The cutting distance can be choosen in steps of 4 mm, i.e. 8, 12, 16, 20 mm (please mention at order).

On request also an electric bone cutter is available.

PINBONE REMOVERS for fish filets

Automatic PinbonerFor removing of small and unwanted pin-bones from larger fresh, de-frosted or smoked filets (from about 150 g filet weight on, like: Salmons, Trouts and Charrs) different pinboners, from compact handheld devices to automatic band machines, are available. All machines (motor: 220-240 V, 50-60 Hz) are building from non-corrosive material to the quality and work with the same principles. The deboning unit can je adjusted in height, angel and speed. The belt can also be adjusted in speed. During operation, the machine units are keept clean with water or air. The unique mechanical picking action of theese pinboners gently removes neck- and pinbones (90-95 % at single- and 95-100 % at twin-systems), leaving fillets looking their best. Pinboning is not only removing the pin bones, but important is also not to break pin bones, not to bleach the fillet by water, and keep the fillet without gaping. They are very user and maintenance friendly and allow fast working. The pinboners are ideal for use by fish processors, fish mongers, fish shops, fish restaurants etc., giving excellent results with best possible yields and minimum weight loss. Optionally all machines are available as twin models (with 2 heads after each other). As accessoire also a vacuum system is available which sucks away the bones and water from the fillets.

The following belt machines are available:

Typ EM-52 EM-102 EM-202
Heads 1 2 4
Capacity kg/h 250-750 750-1500 1500-3000
Belt cm 28 56 112
Wide cm 47 84 115
Length cm 150 180 230

SKINNING MACHINES for fish filets

EnthäutungsmaschineThis fish skinning machines (skinning wide max. 430 mm, skinning speed approx. 19 m/min) are manufactured with the use of exclusive and high quality components and according to the newest technical and hygienic regulations. The are made of rust free stainless steel, the transport belts and rolls are made of plastic. Additional plates inside guarantee a very long live of the robust machines, which have no electronic parts which could become deffect. All machines are easy to use and very maintainance friendly, which saves additional costs.
All models work with an 230/400 V (50/60 Hz) 0.75 kw (1.0 HP) motor and are equipped with a foot-switch, turnable plate, adjustable knives and a water spray unit. With all machines the filets can be eighter skinned with stump blade or also with sharp blade. At skinning with stump blade (silver skinning) nearly no waste is generated, at working with sharp blade (deep skinning), the skinning deepth can be adjusted from 0 to 4 mm. Types CF are equipped with a cog-roller (for fish with a tough or thick skinn) and types CS with cleaning-centrifuge (for fish with a soft or thinn skinn).
The Stand-models are open and have a beared knife-holder and fixable turning-wheels. The Band-models are suitable for large quantities and guarantee highest security during working, because they are switched off if the cover is opened. The skinning deepth can be adjusted here from 0 to 5 mm. They have a beared and from outside adjustable pressure unit (opening height max. 70 mm), which adapts automatically to the filets and is available with different performance depending on the fish speices (soft wheels, hard roller for salmon or soft baloon). Optionally, the band-models can be equipped with special designed curved blads, which allow in one working process to skinn and remove the red-brown muscle segments along the sides of the sensory canal from fresh or smoked filets completely which was one of the most difficult problem during normal skinning by hand. Additionally they have a removeable charging and forwarding belt.

The following types are available as standard:




Type CF420 CS420 CF460 CS460 CF495 CS495
Width cm






Hight cm






Depth cm






Weight kg







SLICING MACHINE for fish filets

Automatic SlicerThis slicers are based on a proven combination of a strudy grund machine and a perfect slicing glide. Due to the good quality and the modern technique of the slicers the best slicing results are achived with yield of approx. 99 %. The plate and glide is from stainless steel, the other parts are made from polished and eloxided aluminium. The blades are made of specially chromed steel and last very long. All this features allow a very economic operation for the processing fillets of various fish species. There are different slicing machines available, from the simple manual to the controlled automatic slicer (portion or doubble lane silicer on request).

The following types are available as standard:

Typ Manual Automatic Compact
Filet temperature ºC -7 to -10 -7 to -10 -4 to +6
Slicing angle degree 10-30 10-30 10-40
Slicing thickness mm 0,5-15,0 1,0-5,0 2,0-10,0
Slicing cutts/min approx. 60 approx. 60 approx. 75
Power kw 0,25 1,00 1,00
Length cm 62 170 130
Wide cm 60 66 60
Hight cm 57 140 130
Weight kg 35 150 120


Vacuum packing machineAt this table models the vacuum chamber and housing is made from stainless steel and the high transparent lid of acryl glas. An easy and automatic working process is possible through the analog process time control pane (and from typ "B-35" on also through the digital sensor control with 10 programs). A gas injection system and soft-air ventilation is also possible from typ "B-35" onward. The machines have a single sealing bar configuration (single time sealing-cutting system on request) and are also available with a double sealing bar configuration from typ "B-42" onward.  The professional vacuum pump 230 V/50 Hz (vacuum time 10-60 seconds) and back ventilation guarantee a service friendly construction. A liquid insert-plate is available as accessoire.

The following typs are available as standard:


Chamber dimensions BxLxH mm

Total dimensions BxLxH mm

Sealing bar mm

Pump m3/h

Power kw



330x450x295 280 4 0.40
Plus 280x310x120 330x450x295 280 8 0.50
Super 350x370x150 450x525x385 350 16 0.55
Jumbo 420x370x180 490x525x430 420 16 0.55
B-35 350x370x150 450x525x385 350 16 0.55
B-42 420x370x180 490x525x430 420 21 1.00
B-50 420x460x180 490x610x445 420 21 1.00

Larger moveable floor models or doubble chamber systems on request.

FLAKE ICE MACHINES with or without storage container

Flake-Ice machine with integrated storage containerThis scale ice makers are made of high quality stainless steel and plastics, have small dimensions and a high production capacity. They are easy to use and the innovative technique guarantees a stable quality of the flake ice and are highly economic. All maschines are FCKW-free (R404a or on request also CO2), have adjustable feets and an automatic water remover. Other voltages, larger machines (also without refrigeration unit) on request. All models are also available with a liquidificator set on request, and as options are salt-dosing and automatic-cleaning systems available.
As acessoire isolated storage containers for 70 to 1.300 kg ice are available, which keeps the ice cool and easy to use, even after longer storage. The 4 smaller units are also available with integrated storage container (40 mm isolated) for each 70 or 210 kg ice, where the ice machine is included abouve.

The following models are available:

Typ/Capacity/day kg








Consumption kw

0,45 0,62 0,94 1,80 2,80 4,80 6,80


230 230 230 400 400 400 400

Weight kg

50 58 95 110 220 360 460
Width cm 50 50 75 75 102 130 130
Depth cm 32 32 65 65 70 100 100
Hight cm 64 64 77 77 101 126 126

Capacity in 24 h at a temperature of +18 °C ambient-air and +12 °C water-supply as well as -7 °C flake-ice.

ELECTRIC PRESSURE CHAMBER for smoking and grilling

Pressure chamber smokersOur implements are produced by modern machines and they are installed and approved accurately by hand. Due to continuing further development and in close cooperation with the leading professional institutes and associations of fish- and meat industry, as well as due to many suggestions from application in gastronomy, this devices are the most matured smoker, a fact that is confirmed by the best cooks all over the world, as well as by FIMA (marketing institute of the fish industry), by many professional associations as for example VDK (association of cooks) and last but not least by many foreign unions and professional hotel schools.  This smokers with its approved technic are in operation worldwide. It is a product for special gastronomy as smoking is possible at any time in presence of the customer - also in delicatesse-shops, in the groceries store, at the butchers, at the party-service, restaurants, beer-gardens etc.
In the electronic pressure chamber grill and fumigator you can easily prepare hot or cold smoked specialities ready to serve within very short times. You can work with the oven in closed rooms - smoking indoors - always a pleasure. Fish and meat are not cooked directly by firewood or infrared heat, but indirectly by the hot air inside of the pressure chamber. The tightly closing door guarantees that only a very small amount of smoke and thus nearly no moisture are let out. Proper gravy will be preserved, which is a great advantage in comparison to other smoking processes. Fish is put, with its belly up, onto the special grates. Flat-fish, fillet, meat are smoked on the flat grids. Flavour and proper gravy will remain. Cooking without addition of grease, therefore low on calories. Constant temperature and optimal diffusion of smoke (pressure) will lead to a good cooking and a golden-brown colour of the smoked food. After the timer has run off, smoke will deposit on the inside of the walls. The darker they are, the better the taste will be. The special heat-resisting sealing of the doors needs neither maintenance nor renewal. Very low energy costs, over 60% of cooking-terms you can grill and cook without electricity. The double-casing guarantees that no water can enter. All electric parts are protected. Both the interior and exterior of the smokers as well as tin-plates and grates are made of stainless steel. No rusting or loss of colour and enamel. Very short pre-heating times and very low energy consumption due to completely insulated double-casing. Switches and control lamps on the front side a design suitable for modern kitchen. Heating with thermostatic regulation, automatic timer. The standard outfit consist of stainless steel vessel and smoking-pan, 1-2 racks and 1-2 flat grids as well as user maual and recipes.

The following types are available:

Type/Modell HS 24 HS 48
Dimensions (WxHxD) 45 x 35 x 45 cm 45 x 35 x 85 cm
Racks and grids 30 x 40 cm 30 x 80 cm
Load max. 24 Fish-7 kg Meat 48 Fish-14 kg Meat
Weight 25 kg 45 kg
Connection 110/220 V 1 kw 2 kw

SMOKING CHAMBERS for excellent product quality

Typ RS-40 + RS-100With this smoker you will get a state-of-the-art and high-quality product finished through CNC-production, containing over 30 years of development and experience. Most remarkable features are simple operation and extremely compact design. With our special integrated smoke-gas-guidance, your smoke goods will get evenly cooked and aromatized. The smoke-gas-guidance takes place over an additional sheet metal in the back to the outlet (see funcion sketch). With this you will get an optimal use of the smoke, the temperature inside the oven is very evenly and the dripping of condensate onto your smoke goods is safely avoided. The aluminium coating offers advantages compared to other coatings as food-proofed and highly corrosion- and heat-resistant. Stainless steel is 100% corrosion-resistant, acid- and leach-resistant, easy to clean thus allow flexible use (smoking of fish, meat, sausages, poultry and savage meat in the same oven possible). This smokers are available in different sizes made of aluminium covered steel or stainless steel with interchangable wood- or gas fiering, for hot- and cold smoking of fishes as well meat and sausages. All smokers come complete with dry-drip-tub and bouncer. Additionall smoking grids, rosts, spits or hokes, smoke pipes (130 mm diameter) also with rain cover are available as accessoire.

The following types are available as standard:

Description/Typ RS-20 RS-40 RS-60 RS-100
Outside (WxDxH) 45x36x90 cm 45x36x115 cm 45x36x140 cm 58x44x165 cm
Inside (WxDxH) 40x33x50 cm 40x34x88 cm 40x33x110 cm 54x41x132 cm
Inside Volume 65 Liter 120 Liter 140 Liter 280 Liter
Weight approx. 25 kg 30 kg 35 kg 80 kg
Capacity approx. 20 Fish or 12 kg Meat 40 Fish or 25 kg Meat 60 Fishe or 35 kg Meat 100 Fish or 75 kg Meat
Gas Heater approx. 2.5 kw, 5 kg 4.0 kw, 8 kg 4.0 kw, 8 kg 8.8 kw, 19 kg
Propan gas use approx. 185 g/h approx. 290 g/h approx. 290 g/h approx. 640 g/h
Wood meal use approx. 250 g approx. 400 g approx. 400 g approx. 700 g

Wood firing:
For cold-smoking, the burning box is filled with smoke-flour and the draft regulation is completely closed after lighting. The smoke-flour becomes carbonised and with a maximum fill of the burning box the oven smokes up to 15 hours.
For hot-smoking a fire is kindled in the burning-box. The temperature will be set by the draft regulation. As soon as the smoked goods are dry and cooked, the draft regulation is to be completely closed and the fire is covered with smoke-flour to get a good smoke development. You will get best smoked-results by using pure beech wood. More simple, more comfortable and above all more economically you will smoke your goods with the gas heater.

Gas heater:
Drying and cooking: With full power of the gas heater - without smoke-flour pan.
Smoking: Cutting down of the heater to half power and simply putting the filled smoke-flour pan ontop of it. When the smoke development is completed, the gas heater is switched off and the smoke process is finished.

ISOLATED SMOKING DEVICES made of stainless steel

Curing DeviceGood and consistent curing results appeal to your customers and widens your customer base best. This electrically (380 Volt/50 Hz) heated smoking devices have a capacity of 100-300 fishes (resp. 70-200 kg meat) per smoking time of 30-90 minutes. The 3 switchable (2/4/6 kw) heating coils with the precision thermostate, timer and thermometer produces heat and smoke for cooking and smoking slowly. A smoke pipe connection (120 mm), and the well doubble isolated (50 mm) walls and door prevents heat loss and makes curing possible also in closed rooms. The fish to be cured either be laid on the racks or hung on curing hooks on the racks. As accessoires special curring hooks, racks and curring meal (wood chips) are available. A build in connection pipe for/and an external smoke generator (for cold smoking), as well as a smoke pipe regulation valve, smoke pipes and bows are available too. For a rational working, trolleys (WxDxH approx. 61x48x110-185 cm with 4-10 layers) and build in ramps are available.

The following sizes are available:


Dimensions Inside/Outside WxDxH

Capacity approx.

RO-135/12 63/94x54/75x110/125 cm

100 Fishes   (70 kg Meat)

RO-135/15 63/94x54/75x135/150 cm

150 Fishes (100 kg Meat)

RO-135/17 63/94x54/75x160/175 cm

200 Fishes (150 kg Meat)

RO-135/20 63/94x54/75x185/200 cm

300 Fishes (200 kg Meat)

LIQUID SMOKE SYSTEMS for stable product quality

Liquid smoke systems Typ TFSR 80-100This systems are completely different to traditional ones in a way, that they need no smoke generator and burner, because instead of a generator, a tank with liquid smoke will be brough to a pressure of 3-5 bar.
At this patented technology, liquid smoke will be spreaded via an ventilation system over nozzles and recircled during closed ventiles. During this process a steam- and gas phase is build, which generates a non visible smoke. This "smoke" is physically identical with conventional smoke, with all durability- and tast giving substances (carbonyls, acids and phenols) but has no tarphase and other undesired matters (Benzo-a-pyren).
The complete system is microprocessor controlled and allow easily the programming of   temperatures, moisture, times etc. as well as to save up to 99 programs (with 20 steps each). The actual and required parameters as well as alarms etc. are shown on a digital display.
For the full automatic cleaning process (without agressive cleaners or personel) all equipment is placed in the cabinet and the program is started - thats all! Beside smoking, with this cabinets you can also curing, steaming, cooking, backing, roasting etc. all with an allways stable product quality.

As standard the following types are available:

Type/Modell TSFR 80 TSFR 90 TSFR 100
Dimensions cm 117x 99x216 132x109x246 147x119x280
Room Hight m 2.45 2.85 3.10
Trolly cm 83x80x150 93x90x170 103x100x200
Volume/Load 1000 l/80 kg 2000 l/130 kg 3000 l/250 kg
Energy 16 kw 22 kw 29 kw
Smoke/Charge 300 g 350 g 400 g

Extendable universal multi camber flow-through systems on request.

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Arctic Charr (Salvelinus alpinus) and Lake Trout (Salmo trutta lacustris):
The breeders origins from populations of alpine lakes. Suitable for stocking in alpine lakes, reservoirs and dams, as well as for the production of seafood. The fish are raised in netcages with live zooplankton and therefore are extremely vital and of high stocking value. A high growth rate as well as an excellent meat combined with a nice colour and large sizes are main characteristics. Tests with tagged fish have shown that fingerlings of 3-5 cm is the most economic size for stocking, as the adaptation of much larger fingerlings to the lakes is more difficult.

Grayling (Thymallus thymallus) and Danube Salmon (Hucho hucho):
The breeders are caught in springtime in various rivers, reproduction and raising takes place at the nursery farm on lake "Wallersee" with live zooplankton and later on also with dry food.

Pike (Esox lucius), Pike Perch (Sander lucioperca) and Burbot (Lota lota):
The mother breeders are catched in lakes. Reproduction and raising of fingerlings with live plankton takes place at the nursery farm on lake "Wallersee". Stocking of fingerlings with 3-4 cm is most economic and is more as anought in most waters.

Sturgeons (Acipenseridae):
After years of studies and experiments among most known sturgeon species and hybrids, now from our own broodstock are available -
Siberian Sturgeon (Acipenser baerii): An easy to keep sturgeon which is used mainly for aquaculture and caviar production (available from fertilized eggs to pregraded females).
Russian Sturgeon (Acipenser gueldenstaedtii): A beautifull sturgeon (light scutes on dark ground) which is well accepted as ornamental fish for garden ponds.
Sterlet (Acipenser ruthenus): A slow growing sturgeon which is mainly used for restocking (in the Danube River) but also for the aquarium trade (available also as albino).
Beluga (Huso huso): The "Caviar fish" with the best growth rate, within 2 years a weight of up to 10 kg can be obtained with a water temperature of 20° C.

We produce over 20 fish species during the year like: Chondrostoma nasus, Barbus barbus, Silurus glanis and others.


In nature, reproductive development and spawning in finfish is controlled by environmental factors such as temperature, photoperiod, nutrition, water quality, and presence of spawning substrate. In aquaculture, it is not always possible or economically feasible to replicate nautral conditions especially as many species are now grown some distance from their original geographic location. Thus, endocrine or a combrination of endocrine and environmental manupulations are utilized to facilitate reproduction. In the last decade significant research has been conducted worldwide on ripening fish sexuality using various preparations.
Carp Pituitary Extract (CPE) are acetone dried pituitaries of carps, which are pulverized and can be used to speed up maturation (induced maturation) as well as the spawning process itself (induced spawning). Intramuscular injections are highly effective in increasing the incidence of spawning as well as possibly increasing egg take in certain species. The potential economic benefits of taking eggs earlier (or later) in a given season or in fact eliminating seasonality altogether in certain climates and regions are significant. Carp pituitary extract contains a variety of pituitary hormones, including gonadotropins, which are effective for the induction of final maturation and ovulation. CPE is administered in distilled water or physiological saline and injected intramusculary at a dose of 1-10 Milligram/kg fish. Available in vials of 1 Gramm (= 1000 Milligram).

TRANQUILIZERS for aquatic animals

Eugénol (Clove-oil) is a very usefull, natural and environmental friendly tranquilizer, which can be used for various fish species. A higher tolerance against longer exposure times gives a greater security and makes the application under practice condition much more easier. Because of the low dosage (30-50 ppm) there occures also no alteration of the taste of the fishes. Available as pure oil in vials of 10 or 100 Milliliter.

DISINFECTANTS for aquaria and aquaculture

We supply various chemicals for desinfection in aquaculture and aquaria. Some chemicals are in some countries only allowed for fish which are not used for human consumption, like eggs, spawners or ornamental fish.
The following chemicals are available:

Actomar for desinfection of equipment, fish and eggs;
Chloramin against gill diseases and Myxobacteria;
Copper sulfate against gill diseases and algae;
Virkon against bacterioses and viroses;

CONSULTING for aquaculture and fishery

An european-wide 25 years' experience and know how in the field of aquaculture, longtime cooperations with important scientific instituts and researchers, worldwide contacts and the experience-exchange on numerous international congresses and symposiums are the base of our respectable and successfull consulting in management of waters and fish stocks, and in planning and construction of production systems, not only for freshwater but also for brackish- and seawater.
In cooperation, our team can offer:

Natural waters:
Consulting in questions of water-management, composition of ecologic rational stocking-plans. Accompany (also scientifical) on restocking-projects for Sturgeons, Salmons, Trouts, Pearlmussels a.s.o. Realizing of water-investigations and fishstock-examinations. Settlement of fishing-actions with electricity, seine- and gillnets in lakes and rivers. Planktoncatch- and stockanalysis for lakes, ponds, lagoons and fjords etc.
Management of fish-stocks in fresh- and seawater. Solutions for parasite-problems, slow growing fish-stocks or to low catch-quotes. Suggestions for high catch-compulshion. Motherbreeder-catch, re-production and reward rearing of autochthone and sensive fish species and formes (with zoopankton).

Production systems:
Planning of farming and production systems for freshwater and marine fishes as well as shrimp. Calculation and preparation of economy- and feasibility-studies as well as water- and market analysis and project reports and funding proposals. Engineering in the field of aquaculture and marine. Construction of hatchery-, nursery-, netcage-, recirculation- and docking-systems. Management and marketing for fish production plants. Education and mediation of professional personnel for aquaculture and fishery.
We also developed a new economy-business plan model, based on a table calculation program (like MS Works, Excel or Lotus). You can enter all variables like: feeding rates an conversion factors, survival and selling rates, stocking density and tank sizes, prices etc. and it will calculate approximately forcast growth and stocks, investment and operation costs and all other requirements.

Get in touch opportunely is important for rational planning and success!

PUBLICATIONS about fish and farming

The Sturgeons and Paddlefishes (Acipenseriformes) of the World: Biology and Aquaculture.
By Martin Hochleithner and Jörn Gessner.
An extended, updated and reviewed third edition. Soft- or Hardcover, 248 pages.

The breeding and culture of sturgeons in captivity has advanced rapidly over the past several years. With recent developments, the requirements of the industry have changed, and the techniques used have also evolved and been adapted to meet these changing needs. Based on experience gained in the the former USSR, new technologies have been developed, and the background of sturgeon biology has been enlightened in many respects. This compendium is designed to close the information gap between scientists and practitioners. Its appeal will be far reaching since biologists, field technicians, hatchery operators and fish farmers, fisherman and fish enthusiasts, will all find a wealth of practical information relevant to their field of interest. The book has the style of a species synopsis coupled with everything anyone needs to know about the reproduction and culture of acipenserid fishes. It summarizes current knowledge on all sturgeon and paddlefish species worldwide and presents it as a practitioner-oriented working guide. It draws on the experience and research findings of the authors gained over more than two decades. The new, third edition has been updated, extended, and reviewed, and includes many new colour illustrations. It value will be timeless.

Sturgeon Fishes (Acipenseriformes): Science as Art.
By Paul Vecsei and Martin Hochleithner.
Hardcover, 120 pages.

Sturgeon illustrator Paul Vecsei and sturgeon farmer Martin Hochleithner are both internationaly well known specialists in the field of sturgeon research and aquaculture. In this volume, they showcase the numerous sturgeon species and highlight the plasticity of sturgeon morphology (both within and between species) using more than 130 detailed illustrations and many summary tables. The material in this book is the culmination of 5000 hours of scientific illustrations. Each illustration is of an individual fish and is extremely accurate. They are made in the technique of pointillism, a known fine-art technique. Each picture is made by small dots, which, when viewed for a distance, creates a very detailed rendition of shape and form. Sturgeon afectionados, sturgeon experts and art lovers will appreciate the collection of illustrations in this unique work.

The Bibliography of Acipenseriformes: With over 10000 References.
By Martin Hochleithner, Jörn Gessner and Sergej Podushka.
Available as searchable electronic version (on CD-ROM) or printed book version (over 500 pages).

This bibliography, which includes nearly all publications from around the world, and covers all Acipenseriforms and a range of topics, is intended to serve as a ready reference for researchers, fisheries managers, aquaculturists and conservationists who work with this ancient fish group. The numerous references are listed alphabetically by author(s) and chronologically by year(s), as the original title. Almost all sturgeon- and paddlefish species are threatened or endangered. Information on them is by no means complete, whether in fields related to sturgeon culture, biology, ecology or management. Due to the current rate of wild-stock exploitation and environmental degradiation, the availability of new information might prove crucial for their survival. This is an attempt to disseminate information about work carried out to date, and to increase its availability.

The Bibliography of Acipenseriformes: Update of the 2000's.
By Martin Hochleithner, Jörn Gessner, Sergej Podushka, Mohammad Pourkazemi and Qiwei Wei.
An update for the years 2000-2009. Paperback, 280 pages.

This bibliography, which covers all Acipenseriforms and a range of topics, is intended to serve as a ready reference for researchers, fisheries managers, aquaculturists and conservationists who work with this ancient fish group. Almost all sturgeon- and paddlefish species are threatened or endangered. Information on them in any field is by no means complete, whether related to sturgeon culture, biology, ecology or management. In many aspects sturgeon biology is very different from that of other fishes, and techniques suitable for other species may not work with them. Due to the current rate of wild-stock exploitation, the availability of new information might prove crucial for their survival. This is an attempt to disseminate information about work carried out to date, and to increase its availability. This is the most important and comprehensive bibliography about Acipenseriformes, and includes nearly all publications from around the world. The references are listed alphabetically by author(s) and chronologically by year(s). This update includes the years 2000-2009. This update is allready included in the bibliography on CD-ROM.

We deliver books related to many species and subjects, please search below:

Our informative Catalog as 72 page paperback version can also be ordered here (for US$ 6,-)

Full range of aquaculture equipment ... just let us know your requirements!

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Pricelists you can get at
All other prices on request, please ask for an offer.
Business conditions

Unterbrunnweg 3, A-6370 Kitzbuehel/Austria
Tel: +43/5356-71399, Fax: +43/5356-64870, Mobil: +43/664-1048297

Quality to reasonable prices - our motto and your profit!