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Types of Jib Cranes
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 are able to move loads between any areas within the boom's arc of rotation. Light duty units are used inside warehouses and factories for loads weighing up to 5 tons. The BestJibCranes.com website features the major types of jib cranes as being either free-standing, wall-mounted or mast mounted.
Free Standing
Free-standing jib cranes are able to stand alone not requiring support from the building structure. The horizontal boom in this specific case is attached to a pivoting vertical column which is anchored firmly to the building floor. This kind of jib crane requires a foundation made of either steel or concrete 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 bottom and the top that are attached to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not needing the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the building wall instead of supporting a regular vertical column. These cranes offer a horizontal boom. These machinery offer up to 200 degrees of rotation and are great in areas where the full three hundred sixty degree rotation is not required.
Depending on how the boom is supported, there are two model varieties. One kind uses a tie rod from above the boom that is attached to the wall. The other kind supports the boom from below by using a cantilever brace that is attached to the wall also.
A boom truck utilizes a winch to recover heavy things or transport supplies to places which are normally not accessible. Like for example, they are usually used maneuvering materials to a hillside or over a ditch or to reach the top of a building.
A large truck is outfitted 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 certain area. There is another boom truck configuration that is equipped with a cherry picker. This model allows arborists to easily access treetops.
The Vehicle
Terex's Stinger BT 3063 model has a reach of one hundred thirteen-feet and is equipped with both stabilizers and outriggers. A boom truck can range from an aerial work platform which 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 modified boom lift made for a particular buyer's needs.
Cherry Picker
Bucket booms or cherry pickers allow workers to reach excellent heights. Usually, buckets or cherry pickers move workers from the ground up to high places such as the sides of buildings, treetops, for fire department and firefighting or up utility poles.
Location
The boom platform can 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 larger need outriggers which horizontally extend 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 capable of moving the boom located in the cab. It is often a panel in the boom itself on the side of the bed.
