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Caterpillar Excavator Sprocket in Montana - Our company offers a vast array of various replacement accessories and parts for many types of excavators, loaders, and bulldozers. Our firm provides a wide range of specific purchasing choices and often will accomodate most shipping needs within Montana. Jib Crane Types 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 twenty feet long. Jib cranes are able to transport loads between any areas within the boom's arc of rotation. Light duty units are used inside 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 The free-standing jib crane models do not need any support from the building structure and could stand by themselves. The horizontal boom in this case is connected to a pivoting vertical column which is anchored firmly to the floor of the building. This type of jib crane needs a foundation made of either steel or concrete and is able to rotate a full 360 degrees. Mast-Type The mast-type jib cranes feature a vertical column that is supported by pivot points at the top and the bottom which are attached to the building floor and the overhead steel structure. These jib-cranes provide 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 rather than supporting a regular vertical column. These cranes provide a horizontal boom. These machine are ideal in places where the full three hundred sixty degree rotation is not required and provide up to two hundred degrees of rotation. There are two model varieties, depending on how the boom is supported. One of the kinds uses a tie rod that is attached from above the wall to the boom. The other variety supports the boom from below by utilizing a cantilever brace that is attached to the wall too. To recover heavy things or to move materials to places and areas which are not usually accessible, boom trucks would use a winch. For example, they are normally used maneuvering supplies over a ditch or to a hillside or to reach the top of a building. A large truck is outfitted with a boom winch. This is mounted in the truck's bed and then it is capable of transporting construction things and other equipment from street-side to a specific place. There is another boom truck design that is outfitted with a cherry picker. This model allows arborists to easily access treetops. The Vehicle The Stinger BT 3063 model has a one hundred thirteen-foot reach and is outfitted with outriggers and stabilizers. A boom truck can range 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 made for a specific buyer's requirements. Cherry Picker Bucket trucks are cherry pickers which could lift workers to great heights. Usually, buckets or cherry pickers move employees from the ground up to high areas like treetops, the sides of a building, 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 the bed of a large truck or on a separate trailer. Larger booms need outriggers that extend horizontally from the truck so as to stabilize and level out the crane during its operation. Controls A cab-over-engine model boom truck has a control cluster responsible for moving the boom situated in the cab. It is often a panel in the boom itself on the side of the bed.