Jib Crane Models
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 could move loads between any areas within the boom's arc of rotation. Light duty units are utilized inside factories and warehouses for loads weighing up to 5 tons. The web site BestJibCranes.com features the major jib crane models as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes are able to stand alone not requiring support from the building structure. The horizontal boom in this situation is connected to a pivoting vertical column that is firmly anchored to the building floor. 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 that is supported by pivot points at the bottom and the top that are attached to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not requiring 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 rather than the normal vertical column. These machinery provide up to 200 degrees of rotation and are great in places where the full 360 degree rotation is not needed.
Depending on how the boom is supported, there are two model varieties. One type uses a tie rod from above the boom which is connected to the wall. The other type supports the boom from below by using a cantilever brace which is also attached to the wall.