A bridge type crane（Two ends sit on tall cement columns or metal supports, shaped like a bridge）that operates on elevated tracks, also known as overhead crane. The components include lifting mechanism, crab, trolley travelling parts, driver's operation room, trolley conductive device (auxiliary sliding wire), crane main power conductive device (main sliding wire), etc. It is a lifting equipment that is horizontally suspended above workshops, warehouses, and material yards for material lifting. The bridge crane runs longitudinally along the tracks laid on both sides of the elevated structure, while the lifting trolley runs laterally along the tracks laid on the bridge, forming a rectangular working range. This allows for the full utilization of the space beneath the bridge to lift materials without being obstructed by ground equipment.

Bridge crane is an important tool and equipment for achieving mechanization and automation of the production process in modern industrial production and lifting transportation. This type of crane is widely used in indoor and outdoor industrial such as mining enterprises, steel and chemical industries, railway transportation, port terminals, and logistics turnover departments and places.

Nucleon (Xinxiang) Crane Co., Ltd, was founded in 2005, is an influential enterprise which integrating the R&D, manufacture, installation, sales and service of light duty lifting equipment, MA series lifting equipment. Bridge crane, Gantry crane and other material handling systems. The registered capital of the company is 560 an covering an area of 430,000 square meters and employing more than 1500 employees. The company has more than 3000 sets of advanced production and testing equipment within international and domestic in which provides hardware guarantee for R&D and manufacture of high-quality products. Nucleon company is the director member of China heavy Machinery industry Association (CHMIA) and also the deputy director member of Hoist Sub Association,and gained the nuclear industry quality management system certification.