harga industri listrik 20 ton overhead crane
A bridge crane is a type of overhead crane that includes two or more overhead runways built into the building’s support structure. Bridge cranes have different configurations and can be comprised of one or two beams—more often referred to as a single girder or double girder design. Girders can be made of rolled steel or can be fabricated by welding the beams into a steel box design for added strength and rigidity.
