Survey

XSTREAM MARINE - QI SERIES MULTI-PURPOSE ELECTRIC WINCH - QI-100 / QI-500 / QI-750

Precision Oceanographic Winches for Geophysical and Scientific Research

Product Overview 

The Xstream Marine QI Series (QI-100 / QI-200 / QI-300 / QI-500 / QI-750) is a specialized line of electric offshore survey winches developed for high-precision oceanographic and geophysical applications. Designed as a robust and compact alternative to hydraulic systems, the QI series offers a "clean" electric drive that is ideal for scientific research vessels, allowing for the precise deployment of sensitive underwater instrumentation.

Whether performing CTD profiling, towing side-scan sonars (like the R2 Sonic series), or conducting water sampling with Rosettes, the QI Series provides the rapid response and fine-tuned control necessary for successful data acquisition. With its user-friendly interface and integrated safety features, it is a versatile workhorse for various deck layouts and vessel types.

Why Choose the Xstream Marine QI Series?

  • Fully Electric Operation: High-efficiency electric drive eliminates the risk of oil leaks and high maintenance costs associated with hydraulic winches, making it suitable for environmentally sensitive research areas.
  • Superior Cable Management: Features a precision ACME Screw level wind system as standard, ensuring that cables of different sizes are spooled evenly to prevent damage and “bird-nesting.”
  • Advanced Remote Control: Every QI winch comes with a remote-control unit featuring a proportional joystick and an emergency stop. It also allows for drive start and reset capabilities directly from the remote for enhanced safety.
  • Robust & Portable: Built with an integrated protection frame and grating, the QI series is designed to withstand harsh offshore conditions. Standard forklift pockets on all models ensure easy mobilization between different vessels.
  • Versatile Instrumentation Support: Specifically engineered to handle the constant deployment and recovery cycles required for magnetometers, sound velocity profilers, and towed sensors.

ModelWinch dimensions
(Width/depth/height)
Drum dimensions
(Core/flange x length)
Cable
OD
Cable
capacity
(Length)
Winch
Weight
(without
Cable)
Line
Pull
Line
Speed
Motor
Size
Power
Supply
 mmmmmmmeterkgtonm/minhpv
QI-1251800/1450/1528Ø559/ø890 x 40011.4316009700.754512.53P, 460
QI-2002240/1500/1742Ø559/ø890 x 80511.43280026171.2845203P, 460
QI-3002628/1810/1785Ø559/ø980 x 103511.43500033002.1540303P, 460
QI-5002790/1810/1923Ø559/ø1040 x 103511.4360004017348503P, 460
QI-7502998/1904/2358Ø559/ø1070 x 110011.43720040174.542753P, 460
QI-10003199/2210/2359Ø720/ø1320 x 130017.5530051506471003P, 460
  • User-Friendly Interface: Operators can switch between local joystick control on the winch body or full remote-control options for flexible deck positioning.
  • Manual Level Wind Override: Includes a manual override for the level wind accessible from the remote, providing critical control during complex instrument recoveries.
  • Minimal Maintenance Design: Engineered for longevity with high-grade materials and protected electronics, requiring only basic periodic maintenance.
  • High Line-Speed & Precision: Provides the stable line speeds necessary for maintaining consistent depths during towed surveys or vertical profiling.
  • Emergency Safety Protocols: Integrated emergency stops and safety grating protect both the operator and the expensive subsea assets being deployed.
  • 1771457792_Brochure_QI_Series-REV2.pdf

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