Product Description 450 ton MRT launching gantry machine beam erection with hydraulic system is generally used in the erection of the Highway Bridge and 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. Delivery time Within 30 to 40 working days after the receipt of deposit. Transportation Generally 35 days to 50 days to destination port