Column-mounted jib cranes are lightweightlifting and handling equipment used in conjunction with electric hoists, chain hoists, and hand hoists.
Cantilever cranes typically use I-beams or KBK rails for their structural beams. Large-tonnage cantilever cranes use box beams.
1. Structural beam selection generally depends on the customer’s desired trolley operation method. Manual trolleys typically use KBK structures, while electric trolleys typically use I-beams (I-beams are easier to install with electric trolleys).
2. Different structural beams require different power distribution methods. Generally, I-beams use C-rails, flat cables, and pulleys for power distribution. KBK rails are simpler to install and relatively inexpensive. A rail pulley and flat cable method is used for power distribution.
A column-type cantilever crane consists of a column assembly, slewing mechanism, jib assembly, and electric chain hoist. It primarily includes an upper column, lower column, main beam, main beam tie rods, a lifting mechanism (electric chain hoist), a slewing mechanism, an electrical system, a ladder, and a maintenance platform. The lower end of the column is fixed to the concrete foundation, and the jib pivots according to user needs. The slewing mechanism is available in manual or electric configurations. An electric chain hoist is mounted on the jib track and is used to lift heavy objects.
