Types of Jib Cranes
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 move loads between any areas within the boom's arc of rotation. Light duty models are utilized within factories and warehouses for loads weighing up to 5 tons. The BestJibCranes.com website showcases the major kinds of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free-standing jib cranes can stand alone not needing support from the building structure. The horizontal boom in this case is connected to a pivoting vertical column that is anchored solidly to the floor of the building. This kind of jib crane can rotate a full 360 degrees and requires a foundation made of either concrete or steel.
The mast-type jib cranes feature a vertical column that is supported by pivot points at the bottom and the top which 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.
The wall-mounted jib cranes provide a horizontal boom that is attached to the wall of a building as opposed to the typical vertical column. These machinery provide up to 200 degrees of rotation and are ideal in places where the full 360 degree rotation is not required.
Depending on how the boom is supported, there are two model varieties. One type uses a tie rod from above the boom which is connected to the wall. The other kind supports the boom from below by using a cantilever brace which is attached to the wall too.