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 can move loads between any areas within the boom's arc of rotation. Light duty units are utilized inside warehouses and factories 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
Free-standing jib cranes can stand alone not needing support from the building structure. The horizontal boom in this case is connected 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 needs 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 top and the bottom. These pivots are attached to the floor of the building and the overhead steel structure. These jib-cranes provide 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 connected to the wall of the building instead of supporting a typical vertical column. These cranes offer a horizontal boom. These equipments offer up to 200 degrees of rotation and are ideal 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 utilizes a tie rod which is connected from above the wall to the boom. The other type supports the boom from below by utilizing a cantilever brace which is attached to the wall too.