Brief introduction:

It has been extensively applied to loading and unloading at port and material handling at dockyard and metallurgy industry. The main structures are composed of steel frame, lifting mechanism, luffing mechanism, slewing mechanism, crane travel mechanism, spreader device (grab, container spreader, and hook, electromagnet disk), electrical equipment and other accessory equipments for safety. Steel structures include jib, A-frame, slewing platform and gantry frame. 

  Referenced standards: GB17495-1998, harbor portal crane technical specifications; JT400-1999 harbor portal crane safety specification; GB3811-2008 crane design standards; GB6067-85 crane safety specification, ISO standards, FEM standards and JIS standards.