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This week’s crane term: Hoisting Drum

Pictured below are three drums which are mounted to a custom manufactured trolley frame and are vital to the movement of the lifted load on this custom built hoist. A hoisting drum is a cylindrical member which holds a wire rope for the purpose of lifting and lowering...

Learn more crane terms…

Pictured below is a Helical Gear Motor. A Helical Gear Motor has the teeth cut at an angle to the center line of the gear. This kind of gear is useful because there is no chance of intermittent tooth-to-tooth operation since there are at least two teeth engaged at any...

SO what is a trolley anyway?

A trolley (pictured below) is a wheeled mechanism from which a hoist is suspended to provide horizontal motion of the hoist along a beam/bridge rail. Find this and more terms under Crane Glossary on American Crane & Equipment’s Home Page....