Description

This series of tower cranes, ranging from QTZ*1.5 to QTZ**5 has a horizontal jib frame, a jib-trolley radius-changing mechanism and a hydraulic self-raising mechanism. It is original in design, reliable in operation and satisfactory in shape. Equipped with all necessary safety devices, these cranes show a good speed-control capacity, satisfactory operating stability and high work efficiency. They can be widely used for the construction of high-rise hotels, residential buildings, high-rise industrial buildings, large-span factory buildings and tower-like buildings like tall chimneys. 1."#" shaped beam with no ballast; *****-shaped beam with slanting strut and ballast; *****-shaped beam with slanting strut but no ballast; ***** Tower cranes.