Jib Crane Models
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is attached to a pivoting vertical member and up to 20 feet long. Jib cranes are able to move loads between any areas within the boom's arc of rotation. Light duty units are utilized within factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site showcases the major kinds of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes can stand alone not needing support from the building structure. The horizontal boom in this particular case is connected to a pivoting vertical column which is firmly anchored to the floor of the building. This type of jib crane could rotate a full 360 degrees and requires a foundation made of either steel or concrete.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the top and the bottom. These pivots are connected to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not requiring the massive foundation needed for free-standing units.
Wall Mounted
The wall-mounted jib cranes provide a horizontal boom that is connected to the building wall rather than the regular vertical column. These equipments are ideal in areas where the full 360 degree rotation is not required and offer up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One type uses a tie rod from above the boom which is connected to the wall. The other type supports the boom from below by utilizing a cantilever brace which is also connected to the wall.