Kinds of Jib Cranes
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is connected to a pivoting vertical member and up to 20 feet long. Jib cranes are able to move loads between any areas within the boom's arc of rotation. Light duty models are utilized in warehouses and factories for loads weighing up to 5 tons. The BestJibCranes.com website showcases the major types of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free-standing jib cranes are able to stand alone not needing support from the building structure. The horizontal boom in this case is attached to a pivoting vertical column which is anchored firmly to the floor of the building. This kind of jib crane needs a foundation made of either steel or concrete and can rotate a full 360 degrees.
The mast-type jib cranes feature a vertical column that 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 benefit of not needing the massive foundation needed for free-standing units.
The wall-mounted jib cranes offer a horizontal boom that is attached to the wall of a building rather than the typical vertical column. These equipments provide up to 200 degrees of rotation and are great in areas where the full 360 degree rotation is not required.
There are two model varieties, depending on how the boom is supported. One of the types utilizes a tie rod that is attached from above the wall to the boom. The other kind supports the boom from below by utilizing a cantilever brace which is also connected to the wall.