The prototype of the crane

portal crane manufacturerChina's ancient irrigation farmland with orange is the prototype of the crane boom type. In the 14th century, Western Europe in the human and animal driven rotating arm type crane. Appeared at the beginning of the 19th century, the bridge crane; Crane important wear parts such as axle, gear and sling started using metal mat...erials, and adopts hydraulic drive. During the late 19th century, steam-driven gradually replaced the hydraulic drive the crane crane. In the 1920 s, due to the electrical industry and the rapid development of internal combustion engine industry, driven by motor or internal combustion engine device basic form of all kinds of crane. crane shipbuilding gantry crane