Types of Jib Cranes
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 could move loads between any areas within the boom's arc of rotation. Light duty units are used inside factories and warehouses for loads weighing up to 5 tons. The web site BestJibCranes.com showcases the major kinds of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes can stand alone not needing support from the building structure. The horizontal boom in this specific case is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This kind of jib crane needs a foundation made of either concrete or steel and can rotate a full 360 degrees.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the top and the bottom that 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 requiring the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the wall of the building instead of supporting a regular vertical column. These cranes offer a horizontal boom. These machine are ideal in areas where the full 360 degree rotation is not needed 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 which is connected from above the wall to the boom. The other type supports the boom from below by utilizing a cantilever brace that is connected to the wall too.