It has box-shape structure and truss structure two kinds of gantry frame, the former have good techniques and easy fabrication, and the latter is light in dead weight and strong in wind resistance. The complete machine features light dead weight, simple structure and easy installation and maintenance, so that it is applicable to outdoor operational sites of medium and small lifting load for general handing such as factories and mines, freight yard and warehouses. Electricals and other parts are packed by high quality plywood crates, Main beam packaged by plastic film and woven plastic cloth.
