Jib Crane Models
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is attached to a pivoting vertical member and up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty models are used in factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com website showcases the major kinds of jib cranes as being either free-standing, wall-mounted or mast mounted.
The free-standing jib crane models do not need any support from the building structure and are able to stand by themselves. The horizontal boom in this specific situation is attached to a pivoting vertical column which is anchored solidly to the floor of the building. This kind of jib crane is able to rotate a full 360 degrees and requires a foundation made of either steel or concrete.
The mast-type jib cranes feature a vertical column which is supported by pivot points at the top and the bottom which are attached to the floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not needing the massive foundation required for free-standing units.
The wall-mounted jib cranes provide a horizontal boom that is attached to the building wall as opposed to the normal vertical column. These machine are great in areas where the full 360 degree rotation is not required and provide up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One type utilizes a tie rod from above the boom which is attached to the wall. The other kind supports the boom from below by using a cantilever brace that is connected to the wall also.