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Jib Crane Types
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 can move loads between any areas within the boom's arc of rotation. Light duty models are utilized within warehouses and factories for loads weighing up to 5 tons. The web site BestJibCranes.com showcases the major jib crane models as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes can stand alone not requiring support from the building structure. The horizontal boom in this case is connected to a pivoting vertical column which is solidly anchored to the building floor. This type of jib crane could rotate a full three hundred sixty degrees and needs 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 top and the bottom. These pivots are connected to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the advantage of not requiring the massive foundation required for free-standing units.
Wall Mounted
The wall-mounted jib cranes offer a horizontal boom which is connected to the wall of a building as opposed to the typical vertical column. These machine are great in areas where the full 360 degree rotation is not required and offer up to two hundred degrees of rotation.
Depending on how the boom is supported, there are two model varieties. One kind utilizes a tie rod from above the boom that is attached to the wall. The other variety supports the boom from below by utilizing a cantilever brace that is connected to the wall too.
To recover heavy things or to transport materials to areas and places that are not usually accessible, boom trucks will use a winch. Like for instance, they are usually used maneuvering materials over a ditch or to a hillside or to reach the top of a building.
A big 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 place. There is a different boom truck design that is outfitted with a cherry picker. This model allows 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 could vary from an aerial work platform which 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 made to suit the specific requirements of the buyer.
Cherry Picker
Cherry pickers are bucket trucks that could raise workers to great heights. Usually, buckets or cherry pickers move employees from the ground up to high areas such as treetops, the sides of a building, up utility poles or for firefighting and fire department rescue.
Location
The platform on the boom is 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 that are bigger require outriggers that extend horizontally from the truck so as to level out and stabilize the crane in its operation.
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.
