Overhead Crane Components

Bridge - The main travelling structure of the crane which spans the width of the bay. The bridge consists of two end trucks and one or two bridge girders depending on the Equipment Type.

End trucks -Located on either side of the span, the end trucks house the wheels on which the entire crane travels. These wheels ride on the runway beam allowing access to the entire length of the bay.

Bridge Girder(s) -The principal horizontal beam of the crane bridge which supports the trolley and is supported by the end trucks.

Trolley Hoist -The unit consisting of both the hoist and the trolley frame. In situations where more than one hoist is required on one crane, both hoists can be supplied on a single trolley or on separate trolleys.

Trolley - The trolley carries the hoist across the bay along the bridge girder(s) traversing the span.

Hoist -The hoist is mounted to the trolley and performs the actual lifting function via a hook or lifting attachment. There are two basic types of hoist. The Munck brand is a Wire Rope Hoist which is very durable and will provide long term, reliable usage. The other type of hoist is the Chain Hoist.

*** Chain hoists are used for lower capacity, lighter duty applications and for projects in which cost is a primary deciding factor.