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 models are used within warehouses and factories for loads weighing up to 5 tons. The BestJibCranes.com website 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 require any support from the building structure and are able to stand by themselves. The horizontal boom in this specific case is connected to a pivoting vertical column which is anchored solidly to the floor of the building. This type of jib crane needs a foundation made of either concrete or steel and could rotate a full 360 degrees.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the top and the bottom that are connected to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not requiring the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the wall of the building rather than supporting a regular vertical column. These cranes offer a horizontal boom. These machinery offer up to 200 degrees of rotation and are ideal in places where the full 360 degree rotation is not needed.
Depending on how the boom is supported, there are two model varieties. One kind uses a tie rod from above the boom that is connected to the wall. The other kind supports the boom from below by using a cantilever brace that is connected to the wall too.