Jib Crane Types
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 are able to transport loads between any areas within the boom's arc of rotation. Light duty units are used within warehouses and factories for loads weighing as much as 5 tons. The web site BestJibCranes.com showcases the major kinds of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes are able to stand alone not needing support from the building structure. The horizontal boom in this specific situation is attached to a pivoting vertical column which is firmly anchored to the building floor. This type of jib crane needs a foundation made of either concrete or steel and is able to rotate a full 360 degrees.
Mast-Type
The mast-type jib cranes feature a vertical column which is supported by pivot points at the top and the bottom which are connected to the building floor and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the advantage of not needing the massive foundation needed for free-standing units.
Wall Mounted
The wall-mounted jib cranes provide a horizontal boom that is connected to the wall of a building as opposed to the regular vertical column. These equipments offer up to 200 degrees of rotation and are ideal 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 using a cantilever brace which is connected to the wall also.