Double Girder Crane

A Double Girder Bridge Crane is a type of overhead crane. It feature end trucks that operate on fixed rails attached to the top flange of runway girders or beams.On a single girder crane, the bridge consists of one girder beam supported on each side by an end truck. The trolley and hoist are most commonly underhung—meaning they run on the bottom flange of the bridge. The bridge itself can either be top running or under running in design.