Jib Crane Models
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 could transport loads between any areas within the boom's arc of rotation. Light duty models are used inside factories and warehouses for loads weighing up to 5 tons. The web site BestJibCranes.com features the major kinds 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 are able to stand by themselves. The horizontal boom in this situation is attached to a pivoting vertical column that is firmly anchored to the building floor. This kind of jib crane requires a foundation made of either steel or concrete and can 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 building floor 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.
Wall Mounted
Wall mounted jib cranes are attached to the wall of the building instead of supporting a normal vertical column. These cranes offer a horizontal boom. These equipments are ideal in areas where the full 360 degree rotation is not needed and provide up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One kind utilizes a tie rod from above the boom that is attached to the wall. The other kind supports the boom from below by utilizing a cantilever brace which is connected to the wall also.