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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 in warehouses and factories for loads weighing as much as 5 tons. The BestJibCranes.com web site features the major types of jib cranes as being either wall-mounted, mast mounted or free-standing.
Free Standing
Free-standing jib cranes can stand alone not requiring support from the building structure. The horizontal boom in this situation is attached to a pivoting vertical column that is firmly anchored to the floor of the building. This kind of jib crane requires a foundation made of either steel or concrete and can rotate a full three hundred sixty degrees.
Mast-Type
The mast-type jib cranes feature a vertical column that is supported by pivot points at the bottom and the top which are attached to the building floor and the overhead steel structure. These jib-cranes provide three hundred sixty 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 that is connected to the wall of a building as opposed to the regular vertical column. These equipments are ideal in places where the full 360 degree rotation is not needed and offer up to two hundred 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 kind supports the boom from below by utilizing a cantilever brace that is also attached to the wall.
A boom truck uses a winch to recover heavy items or move materials to places that are normally not accessible. For instance, they are usually used maneuvering supplies to a hillside or over a ditch or to reach the top of a building.
A large truck is equipped with a boom winch. This is mounted in the bed of the truck and then it is capable of transporting construction things and other equipment from street-side to a specific location. There is one more boom truck configuration that is equipped with a cherry picker. This version enables arborists to access treetops easily.
The Vehicle
The Stinger BT 3063 model has a one hundred thirteen-foot reach and is equipped with stabilizers and outriggers. A boom truck could range from an aerial work platform that is moved by a hydraulic lifting mechanism that 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 made to suit the specific needs of the buyer.
Cherry Picker
Cherry pickers or bucket booms allow employees to reach excellent heights. Normally, cherry pickers or buckets transport employees from the ground up to high places such as treetops, the sides of a building, up utility poles or for fire department rescue and firefighting.
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. Booms which are bigger require outriggers that extend horizontally from the truck in order to level out and stabilize the crane during its operation.
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.
