Jib Crane Models
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is attached to a pivoting vertical member and up to 20 feet long. Jib cranes could move loads between any areas within the boom's arc of rotation. Light duty models are utilized inside warehouses and factories for loads weighing as much as 5 tons. The website BestJibCranes.com features the major jib crane types as being either free-standing, wall-mounted or mast mounted.
Free Standing
Free-standing jib cranes are able to stand alone not needing support from the building structure. The horizontal boom in this situation is attached to a pivoting vertical column which is firmly anchored to the building floor. This kind of jib crane needs a foundation made of either steel or concrete and can rotate a full 360 degrees.
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 advantage of not needing the massive foundation required for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the building wall instead of supporting a normal vertical column. These cranes offer a horizontal boom. These machine are great in areas where the full 360 degree rotation is not needed and provide up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One kind uses a tie rod from above the boom which is attached to the wall. The other kind supports the boom from below by utilizing a cantilever brace which is also connected to the wall.