120 ton overhead full span launching gantry was developed and designed by our shenghua design department for high speed railway bridges construction (250 km/hour and 350 km/hour). The maximum capacity of full span launching gantry is 120 ton. 120 ton overhead full span launching gantry has the strength of being light weight, good stability, precise self positioning, precise beam positioning and easy operating. 120 ton overhead full span launching gantry comes with centralize control system, multi speed crane, hydraulic powered support, mechanical powered self advancing system and spare-parts.