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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 that measures up to twenty feet long. Jib cranes can move 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 BestJibCranes.com website showcases the major jib crane models as being either free-standing, wall-mounted or mast mounted.
Free Standing
The free-standing jib crane models do not need any support from the building structure and can stand by themselves. The horizontal boom in this case is attached to a pivoting vertical column that is anchored solidly to the floor of the building. This type of jib crane is able to rotate a full 360 degrees and requires a foundation made of either concrete or steel.
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 connected to the floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not requiring the massive foundation required for free-standing units.
Wall Mounted
Wall mounted jib cranes are attached to the building wall rather than supporting a normal vertical column. These cranes offer a horizontal boom. These machinery are ideal in areas where the full 360 degree rotation is not needed and provide up to two hundred 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 that is connected to the wall. The other type supports the boom from below by using a cantilever brace which is attached to the wall also.
To recover heavy items or to move materials to places and areas which are not normally accessible, boom trucks would utilize a winch. For instance, they are commonly used to reach the top of a building, maneuvering supplies to a hillside or over a ditch.
A huge truck is equipped with a boom winch. This is mounted in the bed of the truck and then it is capable of transporting construction items and other equipment from street-side to a particular location. There is a different boom truck design that is equipped with a cherry picker. This version allows arborists to access treetops easily.
The Vehicle
The Stinger BT 3063 model has a 113-foot reach and is outfitted with outriggers and stabilizers. A boom truck could range from an aerial work platform that is moved by a hydraulic lifting device which is mounted on the bed, up to a Class 8 tractor-trailer rig with a bucket. It is also possible to have a customized boom lift manufactured for a particular buyer's needs.
Cherry Picker
Cherry pickers are bucket trucks which could lift workers to great heights. Typically, cherry pickers or buckets transport workers from the ground up to high areas such as the sides of buildings, treetops, up utility poles or for firefighting and fire department rescue.
Location
The boom platform can be operated by remote from the truck'[s cab. Either the boom is mounted on the bed of a large truck or on a separate trailer. Booms that are bigger need outriggers which horizontally extend from the truck in order to stabilize and level out the crane throughout its use.
Controls
This model of boom truck has a cab-over-engine which has a control cluster which can move the boom from inside the cab. It is often a panel in the boom itself on the side of the bed.
