Ordinary gantry cranes mostly use box type and truss type structures, which are the most widely used. Can handle all kinds of articles and bulk materials, with a weight of 100 tons and a span of 4 to 39 meters. Ordinary gantry cranes with grabs have a higher working level. Ordinary gantry cranes mainly refer to hooks, grabs, electromagnetic, hoist gantry cranes, and also include half-gantry cranes. However, what else is there except ordinary gantry crane?
According to the structure of the door frame, it is divided into gantry crane and cantilever gantry crane
1. Full-gantry crane: The main beam has no overhang, and the trolley is performed within the main span;
2. Semi-gantry cranes: The height difference of the legs can be determined according to the civil construction requirements of the site.
Cantilever gantry crane
1. Double-cantilever gantry cranes: The most common form of structure is the rational use of the structure's force and the effective use of the site area.
2. Single cantilever gantry cranes: This type of structure is often chosen due to site constraints.
According to the purpose, in addition to the common ordinary gantry crane, it is hydropower station gantry crane. It is mainly used for lifting and opening and closing gates, but also for installation operations. The lifting capacity is 80-500 tons and the span is small, it is 8-16 meters; the lifting speed is lower, it is 1-5 meters per minute. Although this type of crane is not often lifted, it is very arduous to use and work, so it is necessary to appropriately increase the working level.