Trawl control system for 2 winches or split winch blocks from small to large vessels. Constant tension and wire length measurement is monitored and displayed in the wheelhouse. When the tension builds up, alarms are sounded so the captain can act. Automatic safety measurement can be implemented to protect both crew and vessel.

Key benefits

  • Maximum opening of net.
  • Reduces costs of repairing gear.
  • Length and tension measurement of port and starboard
  • Different length and tension alarms
  • For electric & hydraulic winches, including monoblock winches
  • Special short-turn programs
  • Wire-release control in case of overload.
  • Classic cost-effective solution / winch control
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Optimum fishing is a combination of many things. Once you have chosen the fishing ground and gear, it is all about having the net in the water with a maximum opening and speed.

Pelagic vessels, for instance, use fish finders to locate the fish. A sharp turn might be needed so as not to lose the fish. A sharp turn need to be performed with care in order not to destroy the net and keep the front wide open. The MARELEC 2 has the ability to automatically shoot or haul the lines when the sharp-turn program is enabled.

Fishing vessels that need to pull their gear at a constant speed through the water in extreme conditions can also use the MARELEC 2 trawl control. When the stern of the ship is moving upwards and downwards with the waves, the MARELEC program will shoot and haul for each wave.

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Fishing protection

  • Important reduction of trawl damage, time-saving and lower repair costs
  • For a fastener, a warp-overload is anticipated through automatic shooting of the wires
  • Propeller-pitch reduction if a fastener persists
  • The effect of fasteners is reduced drastically, especially on difficult grounds

Maximum net opening

  • Maximum catch obtained under all working conditions through equal tension control in both wires and consequent length difference;
  • Applications:
    • With transverse winds and currents
    • On inclined sea bottoms
    • Under adverse weather conditions


  • Time-saving through synchronized pay-out and haul-in of the warps towards pre-set lengths at optimal speed;
  • Labor saving: no more remarking the warps and mark counting

Marelec trawl control systems

Since its establishment in 1983, MARELEC has focused on the development of unparalleled electronic equipment for better fishing performance. These products have been developed in close co-operation with our customers. MARELEC offers a full range of automatic trawling systems, wire length and tension measurement systems.

Exclusive monitoring of the behavior of fishing gear

Easy to read, easy to see what you did, easy to see what you are doing, or not doing! Lengths, time, loads, alarms… With MARELEC you know!


Based on its long experience in fishing technology, MARELEC designs and manufactures different types of measuring rollers with integrated length and tension sensors. The load sensors are designed by MARELEC and made to stand the worst marine conditions. Winch-mounted solutions complement the range. All systems can be controlled remotely and serviced from a distance.

Electronic and hydraulic winches can be controlled

Subject to modifications for technical progress
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