Bridge crane components

Generally, the Bridge crane is consisted of three main parts, the crane bridge, the hoist or trolley, and the runway. The crane bridge is the part which traverses across the runway. The hoist or trolley is the lifting mechanism which traverses across the crane bridge and lifts vertically.

The runway is tied to the building structure. Besides, there are other parts are involved, showing in the following diagram for your reference.

Double girder Bridge crane componets drawing