Widely used bridge erect machine From China factory is Bridge Girder Launcher that places precast concrete beam into precast pier. And it consist of main girder,front leg, middle leg, rear leg, rear auxiliary leg, lifting trolley, hydraulic system and electrical device. Double girder truss type launcher girder crane is suitable for highway and railway bridge, such as straight bridge, skew bridge, curved bridge and so on.
Learn More:
https://www.shenghuacranes.com/bridge-construction-equipment/launching-gantry-crane.html https://www.shenghuacranes.com/bridge-construction-equipment/launching-gantry-crane.html