DQCRANES provided two grab cranes for our client in Bangladesh. The client comes from the Nippon Ltd., which produces high-quality steel for steel treatment companies. Two double girder grab cranes travel under the building’s ceiling and load and unload locomotives and lorries around the clock.
Nippon is able to produce hundreds of different types of steel depending on the composition of the raw materials and the processing. Both the individually produced steel grades and the short delivery times are of crucial importance for the company’s success and depend on a high material throughput in the production chain. This calls for reliable technology.
The crane system works with heavy duty wire rope hoists and a grab with an off-standard rope bracing system. This bridge crane is equipped with a grab for picking up steel cylinders safely and quickly. The grab is lifted and lowered by two wire rope hoists mounted on a double rail crab. In this type of grab solution, extremely high forces act on the rope drum and cause the rope and rope guide to wear quickly. This causes short intervals between required maintenance intervals and unplanned downtimes.
A sophisticated rope bracing system at a set distance below the wire rope hoists makes this possible. The customized rope reeving over several sheaves holds the load free of oscillations during travel and the angled ropes have a stabilizing effect. This also prevents stress on the rope drum caused by diagonal pull.
Dongqi Cranes is able to customize the wire rope hoists and cranes to the design, installation was simple, commissioning unproblematic, and the crane has been running since without incident.
Welcome to contact us, we are very pleased to offer you with best crane solutions and service.
News
Grab crane design and manufacturer | Dongqi grab overhead crane