The CSW-7VK is a fully-enclosed winch for medium duty oceanographic and geophysics research applications.  It is characterized by a welded aluminum tube frame with the drum positioned in front of a vertically-oriented motor + gearbox stack.  It can accommodate the addition of many standard AGO winch add-ons, including a levelwind, drum ratchet, sprocket-assisted manual backup drive, and more.

Unlike the CSW-7 Classic model, the CSW-7VK model is nominally fully enclosed to conveniently meet site safety requirements and ensure better protection from the elements for the motor and drive train components.  Its low center of mass relative to the CSW-6/7/9 Classic winches also make it more ideal for high load applications.



Typically oceanographic applications:  CTD profiling, side scan sonar and magnetometer towing, Rosette water sampling, towed instrument sleds, environmental and pipeline monitoring, lightweight grab samplers, small capture nets


Motor Variants:

The CSW-7VK can be made as a motorized winch or a manual winch with a two- or three-speed gearbox (with optional drill adapter for power driving with an electric or gas drill).  Available power sources at point-of-use dictate how powerful of a motor can be used for each winch application.

Motor options for different input power sources:

Winch input power
Motor options

12 VDC*
Up to 1HP DC motors

24 to 48 VDC*
Up to 2HP DC motors

110 VAC
Up to 1HP** DC or AC motors

220 VAC
Up to 2HP DC motors
Up to 3HP AC motors

* Winches built to be powered directly from DC sources are much less cost effective than winches built to take AC input power, which can be powered from a DC power source using an inverter to convert the DC source to an AC source.
** As long as the power source can supply enough amps, 110VAC power sources can also power up to 1.5HP AC motors.


Standard specifications:

  • Standard frame dimensions:  27"W x ~44"L x ~32"H
  • Standard drum size:  12" face width x up to 24" flange diameter
  • Nominal weight:  ~350lbs (varies by application)


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