Single jib portal crane generally includes the following units: steel frame, lift mechanism, slew mechanism ,crane travel mechanism, spreader device (grab, container spreader, magnet, and hook ), electrical equipment and other accessory equipments for safety. Steel structure include jib and A-frame, slew platform and gantry frame. Single jib portal crane is extensively applied to dock’s bulk cargo( coal ,ore and so on) and other cargo ship(lorry) loading/unloading as well as slipway repair.

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