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 transport loads between any areas within the boom's arc of rotation. Light duty units are used within factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com showcases the major jib crane models as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes can stand alone not needing support from the building structure. The horizontal boom in this situation is connected to a pivoting vertical column which is solidly anchored to the building floor. This kind of jib crane requires a foundation made of either concrete or steel and could rotate a full 360 degrees.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the top and the bottom. These pivots are attached 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
Wall mounted jib cranes are connected to the wall of the building rather than supporting a typical vertical column. These cranes offer a horizontal boom. These equipments provide up to 200 degrees of rotation and are great in areas where the full 360 degree rotation is not needed.
There are two model varieties, depending on how the boom is supported. One of the types utilizes 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 that is connected to the wall as well.