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 units are used within factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com showcases 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 can stand by themselves. The horizontal boom in this particular situation is attached to a pivoting vertical column that is solidly anchored to the building floor. This type of jib crane needs a foundation made of either steel or concrete and is able to rotate a full 360 degrees.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the bottom and the top. These pivots 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 connected to the wall of the building instead of supporting a normal vertical column. These cranes offer a horizontal boom. These equipments provide up to 200 degrees of rotation and are great in places 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 uses a tie rod that is connected from above the wall to the boom. The other type supports the boom from below by utilizing a cantilever brace that is also connected to the wall.