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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 can transport loads between any areas within the boom's arc of rotation. Light duty models are utilized in warehouses and factories for loads weighing as much as 5 tons. The BestJibCranes.com web site showcases the major jib crane models as being either wall-mounted, mast mounted or free-standing.
Free Standing
The free-standing jib crane units do not require any support from the building structure and can 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 needs a foundation made of either steel or concrete and can 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 that are attached to the floor of the building and the overhead steel structure. These jib-cranes offer three hundred sixty degrees of rotation with the advantage of not requiring the massive foundation needed for free-standing units.
Wall Mounted
Wall mounted jib cranes are connected to the building wall instead of supporting a regular vertical column. These cranes provide a horizontal boom. These machinery are ideal in places 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 type uses a tie rod from above the boom that is connected to the wall. The other kind supports the boom from below by utilizing a cantilever brace which is attached to the wall too.
To recover heavy items or to move supplies to areas and places which are not normally accessible, boom trucks will use a winch. For example, they are usually used maneuvering supplies over a ditch or to a hillside or to reach the top of a building.
Bigger trucks are outfitted with a boom winch which is mounted in the truck's bed. It is capable of moving construction items and other equipment from the side of the street to a particular location. There is another boom truck design which 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 equipped with stabilizers and outriggers. 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 to meet the particular needs of the buyer.
Cherry Picker
Bucket booms or cherry pickers allow employees to reach excellent heights. Normally, cherry pickers or buckets move employees from the ground up to high areas like the sides of buildings, treetops, for fire department and firefighting 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 big truck. Larger booms require outriggers that horizontally extend from the truck so as to level out and stabilize the crane throughout its operation.
Controls
This model of boom truck has a cab-over-engine that has a control cluster that can move the boom from inside the cab. It is usually a panel in the boom itself on the side of the bed.