What are the classification of gantry cranes?
2. Single cantilever gantry crane: This form of structure is often due to the limitations of the site was selected.
1. Double cantilever gantry crane: the most common form of a structure, the structure of the force and the effective use of the site area is reasonable.
2. Half-door crane: leg height difference, according to the use of the site of the civil requirements may be.
1. Gantry crane: the main beam without overhang, the car within the main span;
