Determining Required Horsepower

Winch and Hoist Application Guidelines

Horsepower is a measurement of the rate at which work is performed.

One theoretical horsepower is equivalent to 33,000 lbs being lifted one foot in one minute.

When applied to winches and hoists, the equation to determine the horsepower required for a given line speed and line pull is:

For example, you would need 2.0 HP(T) to lift a 2,000 lbs. load a distance of 33 feet in one minute.

This equation does not account any of the inefficiencies inherent in motors, gear reductions, bearings, or rigging.

 

Increasing Line Pull or Line Speed Without Changing Horsepower
To increase line pull without increasing horsepower, line speed must be decreased.
To increase line speed without increasing horsepower, line pull must be decreased.


Allied Power Products, Inc. has specialized in providing winches, hoists, capstans and cranes to meet our customers’ specific application requirements for more than 30 years. Contact us today for a solution to your application needs.