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Kinds of Jib Cranes
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 twenty feet long. Jib cranes can move loads between any areas within the boom's arc of rotation. Light duty models are used within factories and warehouses for loads weighing as much as 5 tons. The web site BestJibCranes.com features the major jib crane models as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane models do not need any support from the building structure and are able to stand by themselves. The horizontal boom in this case is attached to a pivoting vertical column that is anchored firmly to the floor of the building. This type of jib crane needs a foundation made of either concrete or steel and can rotate a full 360 degrees.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the top and the bottom which are attached to the floor of the building and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not needing 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 normal vertical column. These cranes provide a horizontal boom. These machinery are great in areas 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 uses a tie rod from above the boom that is connected to the wall. The other type supports the boom from below by utilizing a cantilever brace which is also connected to the wall.
To recover heavy things or to move supplies to places and areas which are not normally accessible, boom trucks would utilize a winch. For example, they are normally used maneuvering materials to a hillside or over a ditch or to reach the top of a building.
Bigger trucks are equipped with a boom winch which is mounted in the bed of a truck. It is capable of moving construction things and other equipment from the side of the street to a specific location. There is one more boom truck design that is outfitted with a cherry picker. This model enables arborists to easily access treetops.
The Vehicle
Terex's Stinger BT 3063 model has a reach of 113-feet and is outfitted with both stabilizers and outriggers. A boom truck could range from an aerial work platform that is moved by a hydraulic lifting mechanism 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 specific buyer's needs.
Cherry Picker
Bucket booms or cherry pickers enable employees to reach excellent heights. Usually, cherry pickers or buckets move workers from the ground up to high areas like the sides of buildings, treetops, up utility poles or for firefighting and fire department rescue.
Location
The boom platform is able to be operated from the truck's cab by remote. Either the boom is mounted on the bed of a big truck or on a separate trailer. Booms which are larger need outriggers that horizontally extend from the truck so as to stabilize and level out the crane during its operation.
Controls
A cab-over-engine model boom truck has a control cluster capable of moving the boom located in the cab. It is often a panel in the boom itself on the side of the bed.
