Used Wolff Self Erect Cranes San Diego

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 that measures up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty models are used inside factories and warehouses for loads weighing up to 5 tons. The website BestJibCranes.com features the major jib crane types as being either free-standing, wall-mounted or mast mounted.

Free Standing
The free-standing jib crane units do not require any support from the building structure and could stand by themselves. The horizontal boom in this particular case is attached to a pivoting vertical column that is solidly anchored to the floor of the building. This kind of jib crane is able to rotate a full 360 degrees and needs a foundation made of either steel or concrete.

Mast-Type
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 floor of the building and the overhead steel structure. These jib-cranes offer 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 instead of supporting a typical vertical column. These cranes provide a horizontal boom. These equipments 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 kind utilizes a tie rod from above the boom that is attached to the wall. The other kind supports the boom from below by utilizing a cantilever brace that is also connected to the wall.

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