Kinds of Jib Cranes
The trolley hoist on a horizontal load-bearing boom are key features on Jib cranes. The boom is secured to a vertical mast that measures up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty units are used in factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site showcases the major jib crane models as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane units do not need any support from the building structure and could stand by themselves. The horizontal boom in this particular situation is connected to a pivoting vertical column which is anchored firmly to the building floor. This kind of jib crane requires a foundation made of either concrete or steel and can rotate a full 360 degrees.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the top and the bottom which are connected to the floor of the building and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the benefit of not requiring the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the building wall rather than supporting a normal vertical column. These cranes offer a horizontal boom. These equipments are ideal in areas where the full 360 degree rotation is not needed and provide up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One type utilizes a tie rod from above the boom that is attached to the wall. The other variety supports the boom from below by using a cantilever brace which is also attached to the wall.