600 ton interchange bridge launching gantry crane made in china is generally used in the erection of the subway bridge, using the precast segmental prestress concrete box beam (pc beam) assembly. The main feature is the high efficiency of construction and self-traveling. Generally it is composed of the main beam, leg and winch trolley, the main girder is used for bearing, the leg is to execute machine transverse moving, longitudinal moving, leveling, support, cross span, cross scale and other functions, and the winch trolley used for lifting the precast girder.
