Jib Crane Types
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 used inside factories and warehouses for loads weighing up to 5 tons. The BestJibCranes.com website features the major kinds of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes can stand alone not requiring support from the building structure. The horizontal boom in this particular situation is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This kind of jib crane requires a foundation made of either concrete or steel and could 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 attached to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not needing the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the wall of the building instead of supporting a normal vertical column. These cranes provide a horizontal boom. These machine offer up to 200 degrees of rotation and are great in areas where the full 360 degree rotation is not needed.
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 type supports the boom from below by using a cantilever brace which is also connected to the wall.