Types of Jib Cranes
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 transport 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 types of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane models do not need any support from the building structure and are able to stand by themselves. The horizontal boom in this specific case is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This kind of jib crane is able to 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 bottom and the top. These pivots are connected to the building floor and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the advantage of not needing the massive foundation required 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 are great in places where the full 360 degree rotation is not needed and offer up to 200 degrees of rotation.
There are two model varieties, depending on how the boom is supported. One of the types uses a tie rod which is attached from above the wall to the boom. The other type supports the boom from below by utilizing a cantilever brace which is also connected to the wall.