Captive winches are offered with pulling loads up to 70 tons for boats from 18 m (60') to the largest megayachts. Drum lengths vary to fit individual project requirements. Captives and tensioners are tested at full load before shipping.
The winch frame and drum are 6061-T6 hardcoat-anodized aluminum with a carbon-fiber gear cover to reduce weight. All parts connected to hydraulic or electrical circuitry are positioned on the same side for maintenance. The screw bearings and gear transmission are also located on this side for easy inspection. Bearings are sealed and lubricated with grease. The main gearbox is sealed and lubricated with oil.
Hydraulic winches 6T and up are offered with variable-speed motors. Custom solutions are available for higher loads. The synchronized transmission uses two gear sets (four gears) to drive the twin feeder screws. To change line diameter, the gear sets must be replaced. The feeder transmission’s twin feeder screws balance the load on the feeder, allowing line to lie smoothly on the drum—even when slack. The double screw design positions the screws close to the drum, reducing winch size over similarly configured winches. The tensioner system keeps a constant load on the line to prevent overrides.
Product not stocked. Contact Harken to request quote and lead time.
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