Jib Crane Types
The trolley hoist on a horizontal load-bearing boom are key features on Jib cranes. The boom is secured to a vertical mast that measures up to 20 feet long. Jib cranes can move loads between any areas within the boom's arc of rotation. Light duty units are utilized within factories and warehouses for loads weighing up to 5 tons. The website BestJibCranes.com showcases the major jib crane models as being either mast mounted, free-standing or wall-mounted.
Free Standing
The free-standing jib crane units do not need any support from the building structure and could stand by themselves. The horizontal boom in this situation is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This type of jib crane can rotate a full 360 degrees and requires a foundation made of either concrete or steel.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the bottom and the top. These pivots are attached to the building floor and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the benefit of not requiring the massive foundation required for free-standing units.
Wall Mounted
The wall-mounted jib cranes provide a horizontal boom which is attached to the building wall as opposed to the normal vertical column. These machinery provide up to 200 degrees of rotation and are ideal in areas where the full 360 degree rotation is not needed.
There are two model varieties, depending on how the boom is supported. One of the kinds uses a tie rod which is connected from above the wall to the boom. The other type supports the boom from below by using a cantilever brace which is also attached to the wall.