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 which measures up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty models are utilized in factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site features the major kinds of jib cranes as being either free-standing, wall-mounted or mast mounted.
Free Standing
Free-standing jib cranes can stand alone not requiring support from the building structure. The horizontal boom in this particular case is attached to a pivoting vertical column which 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 floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not needing the massive foundation needed for free-standing units.
Wall Mounted
The wall-mounted jib cranes offer a horizontal boom that is attached to the building wall as opposed to the normal vertical column. These machinery are ideal in areas where the full 360 degree rotation is not required 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 attached from above the wall to the boom. The other kind supports the boom from below by using a cantilever brace that is also attached to the wall.