Jib Crane Types
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 units are utilized within warehouses and factories for loads weighing as much as 5 tons. The website BestJibCranes.com showcases the major kinds of jib cranes as being either free-standing, wall-mounted or mast mounted.
Free-standing jib cranes could stand alone not needing support from the building structure. The horizontal boom in this situation is attached to a pivoting vertical column that is anchored solidly to the floor of the building. This type of jib crane requires a foundation made of either steel or concrete and could rotate a full 360 degrees.
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 building floor and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the advantage of not requiring the massive foundation required for free-standing units.
Wall mounted jib cranes are connected to the wall of the building instead of supporting a regular vertical column. These cranes provide a horizontal boom. These machine offer up to 200 degrees of rotation and are great in areas where the full 360 degree rotation is not required.
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 variety supports the boom from below by using a cantilever brace which is also attached to the wall.