Why Is It Called A Gantry Crane?

A gantry crane is a crane built atop a gantry, which is a structure used to straddle an object or workspace. They can range from enormous "full" gantry cranes, capable of lifting some of the heaviest loads in the world, to small shop cranes, used for tasks such as lifting automobile engines out of vehicles.

Rail-mounted container gantry cranes mainly have the following characteristics

①The lifting speed is low and the running speed of the cart is high. According to the needs of the container yard, the lifting height of the rail-mounted container gantry crane is determined by stacking three to four or four to five. Since the lifting height is not high, the lifting speed is correspondingly low.
②The running speed of the trolley can be determined according to the span of the bridge and the overhang at both ends. When the span and the length of the cantilever are small, the trolley running speed and productivity requirements are relatively small. When the span is large and the length of the cantilever is large, the running speed of the trolley can be increased accordingly to meet the productivity requirements.
③When the span exceeds 40m, during the high-speed operation of the cart, the deviation will occur due to the difference in the running resistance of the door legs on both sides. For this purpose, a synchronization device is installed to maintain the synchronization of the running speed of the running mechanisms on both sides through the electrical control system.
④ In order to meet higher requirements, the electric drive control system adopts thyristor DC or AC speed control drive control system to achieve better speed control and control performance.