II. MH-type Gantry Crane: What are Included?

  

5. Walking Half-space:
In order to better repair and maintenance the gantry crane, walking half-space is set on one side of main girder. Respectively, there are protective guards on both sides of walking half-space.

6. Trolley
Trolley is composed of frame, roller box, winch and wheels.
a. Welded with steel plate, frame is the support and walking mechanism.
b. There is one roller box on both sides, with one driving-wheel and one passive-wheel inside. Outside the roller box installed braking motor and cycloid cam reducer, which has the same working principle with crane moving system.
c. As hoisting mechanism for trolley, the winch is located on the above of the frame. Pulley block includes fixed and movable roller, the former is fixed on the frame and the movable one is hanging under the main girder. The end of steel wire rope is twined on the rope roll of the winch. When the winch works, steel wire rope will move up and down so that the load can be lifted up and down.

Note:
i. Steel wire ropes used for lifting goods need regular inspection.
ii. The distance between movable roller and main girder should be less than one meter.

7. Electric Hoist and the Track:
According to the customers’ demand, it is allowable to install electric hoist under the main girder. Electric hoist is also called secondary hook, it can move fast along the track during working time.