QD Type Hanger Overhead Crane, also known as as bridge crane, is a type of crane where the hook-and-line mechanism runs along a horizontal beam that it runs along two widely separated rails itself.And it mainly consists of bridge, trolley travelling mechanism, crab and electrical appliances, and is divided into two working grades of A5 and A6 according to the use frequency. Widely used in our industrial field. This product is widely used in plants, warehouse, material stocks to lift goods and characterized by more reasonable structure and higher strength steel as a whole, it is prohibited to used the equipment in the combustible, explosive or corrosives environment. All the cranes are equipped with overload protection device, Top quality long time bearing polyurethane materials buffer, Crane traveling limit switch, Voltage lower protection function, Emergency stop system and so on. All operations are controlled by central control system. The whole machines would be guaranteed for one year from the test run date.Low charge for continue maintenance when warranty is expired.