Jib Crane Models
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is connected to a pivoting vertical member and up to 20 feet long. Jib cranes are able to transport loads between any areas within the boom's arc of rotation. Light duty units are used within factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com features the major jib crane types as being either mast mounted, free-standing or wall-mounted.
Free Standing
The free-standing jib crane models do not require any support from the building structure and could stand by themselves. The horizontal boom in this specific case is attached to a pivoting vertical column which is anchored firmly to the floor of the building. This type of jib crane could rotate a full 360 degrees and requires a foundation made of either concrete or steel.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the bottom and the top which are connected to the floor of the building 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
Wall mounted jib cranes are attached to the building wall rather than supporting a normal vertical column. These cranes provide a horizontal boom. These machine offer up to 200 degrees of rotation and are ideal in areas where the full 360 degree rotation is not needed.
Depending on how the boom is supported, there are two model varieties. One type utilizes a tie rod from above the boom that is attached to the wall. The other kind supports the boom from below by using a cantilever brace that is attached to the wall too.