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 that measures up to 20 feet long. Jib cranes can move loads between any areas within the boom's arc of rotation. Light duty models are utilized inside factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site features the major types of jib cranes 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 could stand by themselves. The horizontal boom in this situation is connected to a pivoting vertical column which is solidly anchored to the floor of the building. This type of jib crane can rotate a full 360 degrees and requires a foundation made of either steel or concrete.
Mast-Type
The mast-type jib cranes feature a vertical column which is supported by pivot points at the top and the bottom that are attached to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not requiring the massive foundation needed for free-standing units.
Wall Mounted
The wall-mounted jib cranes provide a horizontal boom that is connected to the building wall rather than the regular vertical column. These equipments provide up to 200 degrees of rotation and are ideal in areas where the full 360 degree rotation is not required.
Depending on how the boom is supported, there are two model varieties. One kind utilizes a tie rod from above the boom which is connected to the wall. The other type supports the boom from below by utilizing a cantilever brace which is also connected to the wall.