It can be used to lift two prefabricated beams, or a single crane with double spadders to lift prefabricated beams, the lifting weight of two simultaneous lifting doors is generally 100 tons, and the lifting weight of a single lifting beam lifting machine is usually up to 150 tons. It is equipped with leg walking, crane walking and crane lifting equipment, which can realize all-round mechanized action. It is mainly used to lift the prefabricated beam from the beam making platform to the beam storage platform, and lift the prefabricated beam from the beam storage platform to the beam transport car after maintenance. As lifting equipment to complete the assembly and disassembly of bridge erecting machine. It is also used to erect early Bridges with low piers