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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 that measures up to twenty feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty units are used within factories and warehouses for loads weighing as much as 5 tons. The BestJibCranes.com web site features the major types of jib cranes as being either mast mounted, free-standing or wall-mounted.
Free Standing
The free-standing jib crane models do not require any support from the building structure and are able to stand by themselves. The horizontal boom in this particular case is attached to a pivoting vertical column which is solidly anchored to the building floor. This kind of jib crane requires a foundation made of either steel or concrete and is able to rotate a full three hundred sixty degrees.
Mast-Type
The vertical column on the mast-type jib cranes are supported by pivot points at the top and the bottom. These pivots are connected to the floor of the building and the overhead steel structure. These jib-cranes offer 360 degrees of rotation with the advantage 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 instead of supporting a normal vertical column. These cranes offer a horizontal boom. These machine are great in places where the full 360 degree rotation is not needed and offer up to 200 degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One type utilizes a tie rod from above the boom which is connected to the wall. The other variety supports the boom from below by using a cantilever brace which is connected to the wall also.
A boom truck utilizes a winch to recover heavy things or transport supplies to places that are typically inaccessible. For example, they are commonly used to reach the top of a building, maneuvering supplies to a hillside or over a ditch.
A big truck is equipped with a boom winch. This is mounted in the truck's bed and then it is capable of moving construction items and other equipment from street-side to a certain location. There is one more boom truck design that is equipped with a cherry picker. This model enables arborists to access treetops easily.
The Vehicle
Terex's Stinger BT 3063 model has a reach of one hundred thirteen-feet and is outfitted with both outriggers and stabilizers. A boom truck could range from an aerial work platform which is moved by a hydraulic lifting device 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 to meet the specific requirements of the buyer.
Cherry Picker
Bucket trucks are cherry pickers which could lift employees to great heights. Usually, buckets or cherry pickers move employees from the ground up to high places like treetops, the sides of a building, for firefighting and fire department rescue or up utility poles.
Location
The boom platform can be operated by remote from the truck'[s cab. Either the boom is mounted on the bed of a big truck or on a separate trailer. Larger booms need outriggers that horizontally extend from the truck in order to level out and stabilize the crane throughout its operation.
Controls
This kind of boom truck has a cab-over-engine that has a control cluster which could move the boom from inside the cab. It is usually a panel in the boom itself on the side of the bed.
