Top Running Single Girder Bridge Crane
This is one of the most common overhead cranes configurations in the industry. The crane is made up of a single bridge girder, two end trucks, and a trolley hoist which runs along the bottom flange of the bridge girder between the end trucks.
Under Running Single Girder Bridge Crane
Unlike a top running crane system, the Bridge of an under running or underhung crane is engineered to travel on the bottom flange of a runway beam. Under running cranes are designed for flexibility and functionality, and can be installed without the need to interfere with building support columns.
Top Running Double Girder Bridge Crane
A Top running Double Girder overhead Crane is made up of two bridge girders, two end trucks, and a trolley hoist assembly. The trolley hoist travel on top of rails that are mounted to the top of the bridge girders. Double Girder cranes are usually used in heavy duty applications.