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 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 wall-mounted, mast mounted or free-standing.
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 specific case is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This type of jib crane could rotate a full 360 degrees and requires a foundation made of either concrete or steel.
Mast-Type
The mast-type jib cranes feature a vertical column which is supported by pivot points at the bottom and the top which are attached to the floor of the building 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
The wall-mounted jib cranes provide a horizontal boom that is connected to the building wall as opposed to the typical vertical column. These machine offer up to 200 degrees of rotation and are great in places where the full 360 degree rotation is not needed.
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 utilizing a cantilever brace that is connected to the wall as well.