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Types of Jib Cranes
Jib cranes are made up of a trolley hoist on a horizontal load-bearing boom. This boom is connected to a pivoting vertical member and up to 20 feet long. Jib cranes can transport loads between any areas within the boom's arc of rotation. Light duty units are utilized within factories and warehouses for loads weighing as much as 5 tons. The website BestJibCranes.com features the major jib crane models as being either mast mounted, free-standing or wall-mounted.
Free Standing
Free-standing jib cranes could stand alone not needing support from the building structure. The horizontal boom in this case is attached to a pivoting vertical column which is solidly anchored to the building floor. This type of jib crane requires a foundation made of either steel or concrete and can 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 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 needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the wall of the building instead of supporting a regular vertical column. These cranes provide a horizontal boom. These equipments are great in places where the full three hundred sixty degree rotation is not required and provide up to 200 degrees of rotation.
There are two model varieties, depending on how the boom is supported. One of the types uses a tie rod which is attached from above the wall to the boom. The other kind supports the boom from below by using a cantilever brace which is attached to the wall also.
To recover heavy things or to transport supplies to areas and places which are not normally accessible, boom trucks would utilize a winch. For instance, 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 truck's bed and then it is capable of moving construction items and other equipment from street-side to a particular place. There is another boom truck configuration which is equipped with a cherry picker. This model enables arborists to access treetops easily.
The Vehicle
The Stinger BT 3063 model has a one hundred thirteen-foot reach and is outfitted with stabilizers and outriggers. A boom truck can 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 customized boom lift made to suit the particular requirements of the buyer.
Cherry Picker
Cherry pickers or bucket booms allow employees to reach excellent heights. Typically, buckets or cherry pickers move workers from the ground up to high areas such as the sides of buildings, treetops, for fire department and firefighting or up utility poles.
Location
The boom platform is able to be operated by remote from the truck'[s cab. Either the boom is mounted on a separate trailer or on the bed of a big truck. Booms which are bigger require outriggers which extend horizontally from the truck so as to level out and stabilize the crane throughout its use.
Controls
A cab-over-engine model boom truck has a control cluster capable of moving the boom located inside of the cab. It is usually a panel in the boom itself on the side of the bed.
