Jib Crane Types
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 are able to move loads between any areas within the boom's arc of rotation. Light duty models are used inside warehouses and factories for loads weighing up to 5 tons. The BestJibCranes.com web site showcases the major jib crane types as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes could stand alone not requiring support from the building structure. The horizontal boom in this case is attached to a pivoting vertical column that is anchored solidly to the floor of the building. This type of jib crane needs 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 bottom and the top which are connected to the floor of the building 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 building wall as opposed to the typical vertical column. These machine are ideal in places where the full 360 degree rotation is not needed and offer up to 200 degrees of rotation.
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 attached to the wall.