Kinds of Jib Cranes
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 transport loads between any areas within the boom's arc of rotation. Light duty units are utilized within warehouses and factories for loads weighing up to 5 tons. The website BestJibCranes.com features the major jib crane models as being either mast mounted, free-standing or wall-mounted.
Free Standing
The free-standing jib crane models do not need any support from the building structure and can stand by themselves. The horizontal boom in this particular case is attached to a pivoting vertical column that is anchored firmly to the floor of the building. This kind of jib crane could rotate a full 360 degrees and requires a foundation made of either concrete or steel.
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 floor of the building 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
Wall mounted jib cranes are connected to the wall of the building rather than supporting a regular vertical column. These cranes provide a horizontal boom. These equipments are great in areas 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 that is attached from above the wall to the boom. The other type supports the boom from below by utilizing a cantilever brace that is attached to the wall also.