Kongsberg Net sounder winches (Fishing)
A winch specifically designed for handling cable instead of wire rope. It is typically used to deploy the cable transmitting information from the net sounder which collects data about fish entering the trawl net to the display on the bridge. It is an active winch with pulls up to about 10 tonnes and a choice of frequency controlled electric or low pressure hydraulic drive. Get expert help anytime, anywhere—our global support team is available 24/7 to assist you. Upgrade your systems with tailored retrofit solutions to extend vessel life and boost performance. Explore our training programs to build skills, ensure safety, and maximize operational efficiency. Our Global Customer Support works 24/7 to provide prompt responses, technical expertise and global assistance from key locations in 32 countries. EMEA:+47 33 03 24 07APAC:+65 97 11 24 07AMERICAS:+15 04 303 5244E-mail:
Inspector Detail
▸
Common issues
- Cable spooling/level-wind misalignment causing bird-nesting or cable damage
- Slip ring or rotary joint wear on the net sounder signal path causing intermittent telemetry loss to the bridge display
- Hydraulic motor or drive seal leakage
- Brake band/clutch wear from repeated haul cycles
- Cable insulation damage from chafe against sheaves and rollers
- Load cell/tension sensor drift affecting automatic tension control
- Gearbox oil contamination from seawater ingress
Inspection checklist
- Inspect the net sounder cable for kinks, broken strands, and insulation damage along its full working length
- Check the slip ring/rotary electrical connection for corrosion and signal continuity
- Verify the winch brake holds rated load and the clutch engages/disengages cleanly
- Check hydraulic system pressure and look for leaks at the motor, hoses, and fittings
- Inspect the level-wind mechanism for correct spooling and wear
- Check gearbox oil level and condition, take a sample if due
- Verify tension/load monitoring display against a known test load if practical
- Inspect the winch foundation bolts and drum bearing condition
- Confirm the net sounder signal display on the bridge correctly tracks winch payout
Service intervals
| Gearbox oil change | annually or per running hours, per manufacturer's schedule |
| Full-length cable inspection | every 3-6 months, or before each major fishing season |
| Slip ring/rotary joint cleaning and continuity check | every 3-6 months |
| Brake/clutch adjustment check | every 3-6 months, more often in heavy-use fisheries |
| Hydraulic hose and fitting inspection | annually |
Typical wear limits
| Cable broken-wire count / diameter reduction | retire the cable per the applicable wire rope discard criteria - confirm against class/flag or manufacturer's rope discard standard; this is not a fixed generic figure |
| Brake lining wear | per the Kongsberg service limit for this winch model - inspect against the manufacturer's wear indicator if fitted |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Net sounder cable (correct conductor/insulation type for signal transmission - not a generic wire rope)
- Slip ring assembly
- Hydraulic motor seal kit
- Brake band/clutch friction material
- Gearbox oil seals
- Level-wind guide rollers/bearings
Safety
- High tension on the net sounder cable during haul - stand clear of the bight and cable path
- Hydraulic system stored pressure - isolate and relieve before opening any hydraulic component
- Crush hazard at the level-wind and drum during operation - guard and keep hands clear
- Cable failure under load can whip - do not exceed the rated pull (about 10 tonnes) or bypass tension limiting
Class survey
Note: this record is filed under 'Provision Crane' / 'Deck Cranes' but the actual product is a Kongsberg net sounder winch used to deploy net sounder cable in trawl fishing, not a crane - the content above addresses the winch. On classed fishing vessels, deck machinery of this kind is typically covered under periodic lifting/deck equipment survey requirements including load test and cable condition records, even though it is not a conventional cargo or provision crane.
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →