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 transport loads between any areas within the boom's arc of rotation. Light duty models are utilized in warehouses and factories for loads weighing as much as 5 tons. The website BestJibCranes.com features the major jib crane models as being either free-standing, wall-mounted or mast mounted.
Free Standing
Free-standing jib cranes could stand alone not needing support from the building structure. The horizontal boom in this particular situation is connected to a pivoting vertical column that is solidly anchored to the floor of the building. This type of jib crane is able to rotate a full 360 degrees and needs 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 top and the bottom. These pivots are attached 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
The wall-mounted jib cranes provide a horizontal boom that is connected to the wall of a building rather than the typical vertical column. These machinery 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 utilizes a tie rod which is attached from above the wall to the boom. The other kind supports the boom from below by utilizing a cantilever brace that is connected to the wall also.