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 can 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 BestJibCranes.com web site features the major kinds 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 could stand by themselves. The horizontal boom in this 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 mast-type jib cranes feature a vertical column which is supported by pivot points at the bottom and the top that are connected to the floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not requiring the massive foundation required for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the wall of the building rather than supporting a normal vertical column. These cranes provide 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 needed.
There are two model varieties, depending on how the boom is supported. One of the types uses a tie rod that is connected from above the wall to the boom. The other kind supports the boom from below by using a cantilever brace that is attached to the wall as well.