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 that measures up to 20 feet long. Jib cranes are able to move loads between any areas within the boom's arc of rotation. Light duty models are utilized in factories and warehouses for loads weighing up to 5 tons. The BestJibCranes.com web site features the major types of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes are able to stand alone not needing support from the building structure. The horizontal boom in this situation is attached to a pivoting vertical column which is solidly anchored to the floor of the building. This kind 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 that is supported by pivot points at the bottom and the top which are connected to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not requiring the massive foundation required for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the wall of the building rather than supporting a regular vertical column. These cranes offer a horizontal boom. These machinery are great in places where the full 360 degree rotation is not needed and provide up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One type utilizes 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 also attached to the wall.