50t-70m Portal Crane (Single Boom)

50t-70m shipbuilding gantry crane is suitable for lifting operations in shipyards. This machine uses a single-arm wire rope luffing, and the lifting hook has a slight horizontal drop in different working ranges. This type of hook can increase the working range of the mechanism, and at the same time, the mechanism is easy to operate. The machine has a large working range, fast running speed, large effective working surface and high lifting height. The speed of the crane's structural parts is calculated according to the load of GB3811, and the load relationship is operated in the reaction operation mode. The boom adopts a pipe rack structure, which has the characteristics of small wind coefficient and beautiful appearance. Each mechanism is equipped with electrical and mechanical safety protection devices to ensure the safe and reliable operation of the crane.