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 (300 lbs / 136 kg typical).


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 shear 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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