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Kinds 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 which measures up to twenty feet long. Jib cranes could 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 showcases the major kinds of jib cranes as being either free-standing, wall-mounted or mast mounted.
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 which is anchored solidly to the floor of the building. This type of jib crane could rotate a full three hundred sixty degrees and needs a foundation made of either steel or concrete.
Mast-Type
The mast-type jib cranes feature a vertical column which is supported by pivot points at the top and the bottom that 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 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 normal vertical column. These cranes provide a horizontal boom. These machine offer up to 200 degrees of rotation and are ideal in areas where the full 360 degree rotation is not required.
There are two model varieties, depending on how the boom is supported. One of the kinds utilizes a tie rod which is attached from above the wall to the boom. The other type 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 areas that are normally not accessible. Like for example, they are normally used to reach the top of a building, maneuvering supplies to a hillside or over a ditch.
A large truck is outfitted with a boom winch. This is mounted in the bed of the truck and then it is capable of moving construction items and other equipment from street-side to a particular location. There is a different boom truck configuration which 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 vary from an aerial work platform that is moved by a hydraulic lifting device 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 manufactured to meet the particular requirements of the buyer.
Cherry Picker
Bucket booms or cherry pickers enable workers to reach excellent heights. Usually, buckets or cherry pickers transport workers from the ground up to high areas like treetops, the sides of a building, for firefighting and fire department rescue or up utility poles.
Location
The boom platform can be operated from the truck's cab by remote. Either the boom is mounted on a separate trailer or on the bed of a large truck. Larger booms require outriggers that horizontally extend from the truck in order to level out and stabilize the crane throughout its use.
Controls
A cab-over-engine model boom truck has a control cluster responsible for moving the boom located in the cab. It is normally a panel in the boom itself on the side of the bed.
