The CSW-6 is a portable electric winch designed for oceanographic and geophysics applications. It comes as a complete package, including a range of standard features only available as options on our other winches. It is capable of lifting and lowering many instrumentation payloads. Please, contact us for more information on load pull and line speed.


Small side scan sonar, water sampling, towed instrument sleds, environmental and pipe line monitoring, lightweight grab samplers, small capture nets, subsea video, CTD profiling.

Motor Variants:

  • 1.0 HP to 2.0 HP 3-phase AC motor and outdoor rated AC Vector Drive (VFD) Controller, powered by 110 VAC, 230 VAC (single phase) or 240 VAC (3-phase)
  • 0.5 HP to 2 HP permanent magnet motor @ 90/180 VDC (2 HP @ 180 VDC only) with regenerative drive controller powered from 110/230 VAC single-phase (generator, inverter or ship's power) 
  • 0.125 HP to 1 HP permanent magnet motor @ 12/24/48 VDC with PWM drive controller powered from 12-48 VDC batteries

*** When inquiring, please specify: cable diameter and length (cable specification sheet if possible), payload weight and type, operational conditions ***


  • Nominal frame dimensions are 20"/51 cm L x 20.5"/52 cm W x 17"/43 cm H - (20.5"/52 cm W including mounting pads at bottom)
  • With 16"/41 cm drum flange diameter, overall height is approximately 27.5"/70 cm
  • Nominal weight 125 to 165 lbs (57 to 75 kg) without cable, depending on selected motor and gearbox
  • Powder-coated 6061 aluminum frame
  • Removable carrying handles; two person portable
  • Dog clutch for freewheeling capability
  • Manual disc brake and pin lock
  • Manual hand crank backup for retrieval without ship's power
  • Drum capacity dependent on core and flange selection, e.g. 400m of 6.35 mm cable, 60m of 11 mm sidescan cable
  • Slip ring ready – up to 24 conductor slip rings are available
  • Optional electric brake between the gearbox and motor
  • DC Motor version includes Watertight Sub-Sea connectors on all connection
  • AC Motor version includes EMI shielded cabling, EMI cord grips, EMI inline filter
  • Wooden shipping and storage box
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