Wolff Self Erect Cranes San Jose

Jib Crane Types

Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is connected to a pivoting vertical member and 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 in factories and warehouses for loads weighing as much as 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 models do not require any support from the building structure and can stand by themselves. The horizontal boom in this particular situation is attached to a pivoting vertical column which is solidly anchored to the building floor. This type of jib crane requires a foundation made of either concrete or steel and could rotate a full 360 degrees.



Mast-Type

The mast-type jib cranes feature a vertical column which 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 benefit of not needing the massive foundation needed for free-standing units.



Wall Mounted

The wall-mounted jib cranes offer a horizontal boom which is connected to the building wall as opposed to the normal vertical column. These machine 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 utilizes a tie rod from above the boom which is attached to the wall. The other variety supports the boom from below by using a cantilever brace which is also connected to the wall.

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