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 are able to transport loads between any areas within the boom's arc of rotation. Light duty units are used within warehouses and factories for loads weighing as much as 5 tons. The website BestJibCranes.com features the major jib crane models as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane models do not need any support from the building structure and are able to stand by themselves. The horizontal boom in this specific situation is connected to a pivoting vertical column that is anchored solidly to the building floor. This kind of jib crane can 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 needing the massive foundation required for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the wall of the building instead of supporting a typical vertical column. These cranes provide a horizontal boom. These machinery 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 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.