The QD-type hook bridge crane operates through three motions: the crane’s longitudinal travel along the runway beams, the trolley’s transverse travel, and the hook’s lifting movement. Common lifting capacities range from 5 to 200 tons, with working classes from A5 to A7.

Three operating modes are available: wired pendant control, cabin operation, and wireless remote control. Class A5 is suitable for general mechanical machining and assembly workshops, metal structure workshops, and maintenance shops where the workload is moderate. Classes A6 and A7 are suitable for more frequent or continuous handling operations, and may also serve as auxiliary lifting equipment in metallurgical and foundry workshops. The allowable operating temperature ranges from –20°C to +40°C.