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 move loads between any areas within the boom's arc of rotation. Light duty units are utilized within factories and warehouses for loads weighing up to 5 tons. The BestJibCranes.com website features 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 need any support from the building structure and can stand by themselves. The horizontal boom in this case is attached to a pivoting vertical column that is solidly anchored to the floor of the building. This kind of jib crane requires a foundation made of either steel or concrete and is able to rotate a full 360 degrees.
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 connected to the floor of the building and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the advantage of not needing the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the building wall rather than supporting a typical vertical column. These cranes provide a horizontal boom. These equipments are great in areas where the full 360 degree rotation is not required and offer up to 200 degrees of rotation.
There are two model varieties, depending on how the boom is supported. One of the types utilizes a tie rod that is connected from above the wall to the boom. The other type supports the boom from below by using a cantilever brace that is also attached to the wall.