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 could transport loads between any areas within the boom's arc of rotation. Light duty models are utilized in factories and warehouses for loads weighing up to 5 tons. The web site BestJibCranes.com showcases the major types of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes could 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 anchored solidly to the building floor. This type of jib crane requires a foundation made of either steel or concrete and is able to rotate a full 360 degrees.
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 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 needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the wall of the building rather than supporting a regular vertical column. These cranes offer a horizontal boom. These machinery offer up to 200 degrees of rotation and are great in areas where the full 360 degree rotation is not required.
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 kind supports the boom from below by utilizing a cantilever brace which is also attached to the wall.