There is a special hoisting mechanism on the double-beam bridge crane. The lifting mechanism moves left and right on the double beam, commonly known as the running car. When the double-beam walking mechanism is on the track, it becomes a cart. Electric hoist can only move up and down on I-beam or single-beam crane, and cannot move back and forth.
crane
Crane refers to a multi-function lifting machine that vertically lifts and horizontally carries heavy objects within a certain range. Also known as crown block, crane and crane.
The main feature of tire crane is that its cab and lifting control room are integrated, which evolved from crawler crane (crawler crane), and the crawler and walking bracket of walking mechanism are changed into chassis with tires, which overcomes the shortcoming that the crawler plate of crawler crane (crawler crane) damages the road surface and belongs to material handling machinery.