Electric Pulling Winch

An electric pulling winch is a motorised winch for hauling, pulling and tensioning loads horizontally or up an incline. An electric motor drives a drum carrying a steel wire rope or synthetic rope, and a brake holds the load when the motor stops. The winch is intended for loads that are dragged or rolled, and must not be used to lift a load vertically, since it lacks the braking system and safety factors of a lifting winch. Types by application Fixed industrial pulling winches: winches with a steel frame anchored to the floor, used in plants, shipyards and rail depots for repeated hauling of carts and heavy loads along a fixed route. They run on three-phase power, have a large cable capacity drum and overload protection, and are designed for frequent duty cycles. Cable pulling winches: winches for electrical, infrastructure and telecom contractors pulling cables through ducts, conduits and tunnels. They run on single-phase or three-phase power, usually with several speeds, tension control and foot pedal operation that leaves the operator's hands free. Selection data Pulling force: the winch's pulling force is highest on the first layer of rope on the drum and decreases as layers build up. Calculate the required force for the layer the winch will work on. A load on wheels needs far less force than one dragged along the ground, and an incline increases the force required. Rope type: steel wire rope resists abrasion against concrete and rock, but is dangerous if it breaks. Synthetic rope is lighter and less dangerous on breaking, but sensitive to heat, friction and UV. Duty cycle: determine whether the winch will work occasionally or continuously for hours, and choose a model designed for it. Operating voltage: single-phase or three-phase, depending on what is available on site. The model table lists the pulling force, cable capacity, pulling speed and operating voltage for each model.