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The tyre trolley transfers the concrete segment to the rear of the launching gantry. The lifting trolley of the gantry lifts the concrete segment to the assembly position and the steeve hangs up the segment. After assembly, these segments tighten together with stressing wires, and the gantry put the beam on the pier and fulfill the construction of bridge segment. Based on the requirement of our client and the bridge conditions, the erection span and lifting capacity could be modified and customied for each machine. 

                                                                                530 ton Launching Gantry in span by span  100 ton Launching Gantry in span by span 

General design data：
·Max span : 35m 
·Max weight of each segment : 45ton (60ton) 
·Max weight of span : 460ton（530ton） 
·max longitudinal slope of bridge :±3% 
·max transversal slope of bridge :±2% 
·min horizontal radium : 600m（400m） 
·Max wind speed on working condition : 22m/s 
·Max win speed on static condition :35m/s 
·Safety coefficient :≥2.5 
·Stability factor of launching gantry :1.3 
·Launching gantry’s fixing connection can be resistant emergencyconditions such as strong wind and typhoon. 
·Temperature :from -10℃ to +40℃ 
·Relative humidity :90% 
·The whole machine can move backward and forward for bridge erection.