Types 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 that measures up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty models are utilized in factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site showcases the major kinds of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free Standing
The free-standing jib crane units do not require any support from the building structure and could stand by themselves. The horizontal boom in this situation is attached to a pivoting vertical column which is anchored firmly to the building floor. This type of jib crane needs a foundation made of either concrete or steel and is able to rotate a full 360 degrees.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the top and the bottom. These pivots are connected to the floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not needing 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 provide up to 200 degrees of rotation and are ideal 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 that is connected from above the wall to the boom. The other variety supports the boom from below by using a cantilever brace that is attached to the wall as well.