What Is The Difference Between Overhead Crane And Gantry Crane

What is the main difference between a gantry crane and an overhead crane? 

An overhead crane, often referred to as a bridge crane is shaped like a moveable bridge whereas a gantry crane has an overhead bridge supported with it's own frame.

Gantry Crane also known as Gantry Crane, is a deformation of bridge crane, mainly used for loading and unloading operations of outdoor cargo yard, material yard cargo, and bulk cargo. Its metal structure is like a door-shaped frame. Two legs are installed under the main beam, which can walk directly on the track on the ground. The two ends of the main beam can have outrigger cantilever beams, which have high site utilization rate, large operation range and wide adaptability. , Versatility and other characteristics.