double girder

double girderof mechanical, electrical and metal structure consists of three parts. Double girder cranes in the indoor and outdoor industrial and mining, iron and steel industry, railways, ports and logistics flow and other departments and establishments have been widely used. There are double girder crane mechanical parts, consisting of a metal part and the electrical part of the structure. following on from the small series for you  crane mediated mechanism.
     A mechanical parts: three agencies that vertical lifter, trolley traveling mechanism and traveling mechanism lifting mechanism is used to vertically goods, trolley traveling mechanism is used to move laterally with a load; carts run. agency for the lifting trolley and articles for longitudinal movement, in order to achieve a three-dimensional space to do with the handling, loading and unloading cargo.
     Second, the structural part of the metal: the bridge and small frame components.
     Third, the electrical parts: the electrical equipment and electrical wiring components.