Jib Crane Types
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 used inside factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com showcases the major jib crane models as being either wall-mounted, mast mounted or free-standing.
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 connected to a pivoting vertical column that is anchored solidly to the floor of the building. This kind of jib crane needs a foundation made of either concrete or steel 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 bottom and the top. 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 needing the massive foundation needed for free-standing units.
Wall Mounted
The wall-mounted jib cranes offer a horizontal boom which is attached to the wall of a building as opposed to the regular vertical column. 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 types utilizes a tie rod which is connected from above the wall to the boom. The other variety supports the boom from below by utilizing a cantilever brace that is also connected to the wall.