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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 20 feet long. Jib cranes are able to move loads between any areas within the boom's arc of rotation. Light duty models are used inside warehouses and factories for loads weighing as much as 5 tons. The BestJibCranes.com website showcases 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 can stand by themselves. The horizontal boom in this particular situation is connected to a pivoting vertical column that is solidly anchored to the floor of the building. This type of jib crane requires a foundation made of either concrete or steel 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 attached to the building floor and the overhead steel structure. These jib-cranes provide 360 degrees of rotation with the benefit of not needing the massive foundation required for free-standing units.
Wall Mounted
The wall-mounted jib cranes offer a horizontal boom that is attached to the wall of a building as opposed to the typical vertical column. These equipments are great in places where the full 360 degree rotation is not needed and offer up to 200 degrees of rotation.
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 variety supports the boom from below by utilizing a cantilever brace which is connected to the wall also.
A boom truck utilizes a winch to recover heavy items or transport supplies to places that are usually inaccessible. For example, they are commonly used maneuvering supplies to a hillside or over a ditch or to reach the top of a building.
Bigger trucks are equipped with a boom winch that is mounted in the bed of a truck. It is capable of transporting construction things and other equipment from the side of the street to a particular place. There is one more boom truck configuration which is outfitted with a cherry picker. This version allows arborists to easily access treetops.
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 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 manufactured for a specific buyer's needs.
Cherry Picker
Cherry pickers are bucket trucks which can lift workers to great heights. Normally, cherry pickers or buckets move workers from the ground up to high areas like the sides of buildings, treetops, for firefighting and fire department rescue or up utility poles.
Location
The platform on the boom is 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. Booms that are bigger need outriggers which horizontally extend from the truck in order to stabilize and level out the crane throughout 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 often a panel in the boom itself on the side of the bed.
