Aluminium Single Girder Overhead Travelling Crane

Single Girder Overhead Bridge Cranes. 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.A single girder crane has only one bridge beam, and the hoist trolley operates or travels on the lower flange of the bridge girder. · A double girder crane will have two bridge beams, and the hoist trolley travels on rails, usually attached to the tops of the crane girder.Single Girder Cranes generally have no platform for maintenance,or have 2 small platform for LT mechanism maintenance. Double Girder Cranes have both sides platform across the main girders for maintainance purpose and platform for crab maintenance. Single Girder cranes does not consist Under bridge light.