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 could move 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 showcases the major types of jib cranes as being either free-standing, wall-mounted or mast mounted.
Free Standing
The free-standing jib crane models do not need any support from the building structure and could stand by themselves. The horizontal boom in this particular situation is attached to a pivoting vertical column that is anchored firmly to the floor of the building. This type of jib crane can rotate a full 360 degrees and requires a foundation made of either concrete or steel.
Mast-Type
The mast-type jib cranes feature a vertical column which is supported by pivot points at the bottom and the top that are attached 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 connected to the wall of the building rather than supporting a typical vertical column. These cranes provide a horizontal boom. These machinery provide up to 200 degrees of rotation and are ideal in areas where the full 360 degree rotation is not needed.
Depending on how the boom is supported, there are two model varieties. One type utilizes a tie rod from above the boom which is attached to the wall. The other variety supports the boom from below by utilizing a cantilever brace that is attached to the wall as well.