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 structures 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: GB*********8 Harbor portal crane
technical specifications, JT*******9 harbor portal crane
safety specification, GB********8 crane design
standards, GB******5 crane safety specification, ISO
standards, FEM standards and JIS standards.
