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Types of Jib Cranes
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is attached to a pivoting vertical member and up to twenty feet long. Jib cranes are able to transport loads between any areas within the boom's arc of rotation. Light duty models are used inside warehouses and factories for loads weighing up to 5 tons. The website BestJibCranes.com features the major types of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane units do not require any support from the building structure and can stand by themselves. The horizontal boom in this particular case is connected 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 three hundred sixty 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 bottom and the top. These pivots are attached to the building floor 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 wall of the building instead of supporting a normal vertical column. These cranes offer a horizontal boom. These machine are great in areas where the full three hundred sixty degree rotation is not needed and offer up to 200 degrees of rotation.
There are two model varieties, depending on how the boom is supported. One of the types uses a tie rod which is connected from above the wall to the boom. The other variety supports the boom from below by using a cantilever brace which is attached to the wall as well.
A boom truck uses a winch to recover heavy things or transport supplies to places which are typically not accessible. For instance, they are normally used to reach the top of a building, maneuvering materials over a ditch or to a hillside.
A huge truck is outfitted with a boom winch. This is mounted in the truck's bed and then it is capable of transporting construction items and other equipment from street-side to a certain area. There is one more boom truck configuration that is equipped with a cherry picker. This version enables arborists to access treetops easily.
The Vehicle
Terex's Stinger BT 3063 model has a reach of one hundred thirteen-feet and is equipped with both outriggers and stabilizers. A boom truck can 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 requirements.
Cherry Picker
Bucket booms or cherry pickers allow workers to reach excellent heights. Typically, cherry pickers or buckets move workers from the ground up to high areas like for instance treetops, the sides of a building, for fire department and firefighting or up utility poles.
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 large truck or on a separate trailer. Bigger booms need outriggers which extend horizontally from the truck in order to stabilize and level out the crane throughout its use.
Controls
A cab-over-engine model boom truck has a control cluster responsible for moving the boom located inside of the cab. It is normally a panel in the boom itself on the side of the bed.