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The SOSI MPW Series Multi-Purpose Winches (MPWs) are engineered for medium line-pull operations in a variety of applications. The MPW series winches are designed to meet the UNOLS fleet deck mounting pattern—making them portable and easy to install on your vessel or vessels of opportunity. MPW’s quality, open-frame steel construction and proven components provide reliable operation while their 3-coat powder finish provides long life even in the harshest marine environments. These winches comply with the USGC 46 CFR 189.35-9 requirements for line breaking strengths up to 11,000 lb.


  • Integral electro-hydraulic power unit
  • Variable speed control
  • Computer-controlled driven level wind with override
  • Integral hydraulic fail safe brake
  • Electronic local control station
  • Stainless piping & fittings
  • +/- 10° Horizontal, 0 to +30° (above horizontal) vertical cable fleet angles


  • Slip ring assembly
  • Electronic remote control
  • Manual brake
  • Line speed, payout, & tension lebus grooved drum shell
  • Hydraulic reservoir heater
  • Hydraulic air/oil cooler


General oceanographic, UNOLS, CTDs, water samplers, instrumentation, towed bodies, plankton nets, small seafloor samplers, side scan sonar, magnatometers, drop cameras, water column profiling

Product Specs

HorsepowerLine Size (Diameter)Length of CableLine Pull (Bare Drum)Line Speed (Bare Drum)

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