for offshore farming
This "Vineta" cages are developed for industrial farming of various fish species (i.e.: Seabass, Seabream, Grouper, Salmon, Sturgeon etc.) all the year round at exposed open water areas such as seas and oceans. To prevent demage 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 steelwork is marked and packed as packages or in boxes wich 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 threedimensional framework forming a regular
nonahedron in plan, with three slanting trusses, running from the vertival 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 wich 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.
|CIRCULAR NETCAGES for
We 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 a sinker tube ring are available as accessoire. The cage pipes are shipped in parts and are welded on site.
Traditional rectangular cage systems of any size, we produce based on our ponton system
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|ILLUMINATED NETCAGES for the fingerling production with
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 center of fine meshed submerged nets. Mainly Copepods and Cladoceres - but also a
variety of other zooplankton organisms are photo sensitive and steadily swarm into the
cages towards the light source.
|UNDERWATER LIGHTS to
increase growth and delay maturity
Underwater 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.
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POLYMER COATED POLYESTER NETS for cages
This special polymere 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 antifouling. 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 3,6-3,8 m with a mesh size of 5 and 12 mm, and 5,0 m wide with a mesh size of 20 and 40 mm. With a weight of 450-550 g/m2 the cages need no lead sinkers. We deliver finished cages or also the material on coils.
Nets with the following specifications* are available as standard:
*Specification data on average (+/- 10 %).
NYLON NET MATERIAL for cages and fishery
The 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 sewen 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, 6, 8, 10, 12, 15, 18, 20, 25 or 30 mm, or only the net material itself.
Seine Nets in two designs:
Gill nets in two versions:
Trap Nets in two
Cast Nets in two arts:
Scoop Nets in two
We deliver also other nets in various sizes.
PRECISION CLOTHS for aquaculture and hydrobiology
Precision woven screening
fabric is a highly specialized monofilament fabric, characterized by precisely defined and
controlled, consistent and repeatable material properties s.a.: mesh size, thickness,
tenisle strenght, dimensional stability, cleanliness etc.). 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
SHADING SHEETS AND PROTECTION NETS made of polyethylene
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 also deliver bird protection nets with a mesh size of 15 - 150 mm.
TRAPS made from plastic
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 a wide inlet opening 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 sinker weight 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:
|NET CLEANING SYSTEM with high pressure
This 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.
Quality is our motto ... and your profit!
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