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Winch reducer

KPM winch gearboxes offer planetary gear units with 2 to 4 stages, providing a speed ratio range of 15 to 1,170. Output torque ranges from 1,750 to 1,000,000 Nm. Higher torque and extended ratio ranges can be customized upon request. Drum single‑rope pull forces range from 7 kN to 1,950 kN.
The operating ambient temperature ranges from –20°C to +40°C. The allowable oil temperature is –20°C to +80°C. When the equipment is subjected to special environmental conditions—such as excessively high or low ambient temperatures, seawater, salt spray, dust, overpressure, severe vibration, extreme impact, or corrosive media—please contact us.

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Mobile cranes, construction cranes, loading and transfer cranes, shipboard cranes, port cranes, offshore platform cranes, horizontal directional drilling rigs, bucket-wheel excavators, and more...


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