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 which 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 used in factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com showcases the major types of jib cranes as being either free-standing, wall-mounted or mast mounted.
Free Standing
The free-standing jib crane units do not require any support from the building structure and can stand by themselves. The horizontal boom in this case is connected to a pivoting vertical column that is anchored solidly to the building floor. This type of jib crane could rotate a full 360 degrees and requires a foundation made of either steel or concrete.
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 connected to the building floor and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the benefit of not requiring the massive foundation required for free-standing units.
Wall Mounted
The wall-mounted jib cranes offer a horizontal boom which is attached to the building wall rather than the typical vertical column. These equipments are ideal in places where the full 360 degree rotation is not required and offer up to 200 degrees of rotation.
There are two model varieties, depending on how the boom is supported. One of the types uses a tie rod which is connected from above the wall to the boom. The other variety supports the boom from below by utilizing a cantilever brace which is also connected to the wall.