Technical Data Sheet [PDF]

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TECHNICAL DATA SHEET - JIB CRANES Wide Selection of Custom Jib Cranes Download Brochure for Custom Jib Cranes



Bushman Equipment, Inc. offers a complete line of quality-built jib cranes to meet the most demanding material handling requirements. There are various jib crane models from which to choose: floor-mounted pillar types; top and bottom-supported units; wall or column-mounted versions; and models that afford manual or motorized rotation. Built to the highest industry standards, Bushman jib cranes have earned a reputation for ruggedness and durability. Capacity Capacities are based on the live load at the hoist hook, making allowances for hoist and trolley weights, and impact. A safety factor of at least 3:1 is designed into each crane.



Application Motorized rotating jib cranes are widely used to control or position the load in an area that is generally inaccessible to material handling equipment, or where the load, weight or duty cycle make it impractical to employ manual rotation. Bushman motorized jib cranes are designed to provide reliable, long-life performance with minimal maintenance.



M480-Motorized, 360° Rotation Jib cranes are available with either the base plate for floor mounting or without the base for mounting the pillar directly into a concrete foundation. In addition to the standard jib crane construction features, these motorized units include: motor, variable speed electronic drive, heavy-duty chain drive, pintle pin and reducer. Optional equipment includes current collector rings for 360° continuous electrification, and tagline assembly for festooned hoist conductor cables. Control push buttons are usually incorporated into the hoist push button station to facilitate operator control (push button optional). The motorized drive rotation of the jib boom typically provides a rotation speed of 1/2 RPM, but speeds up to 1 RPM are available.



Jib Crane Selector Chart



Model 483-CMTR and Model 484-CMC The 483 and 484 jib crane models provide 360° of rotation and are used where support can be provided for the top bearing assembly by securing to a ceiling, truss, wall, beam or column. The bottom bearing assembly is secured to the floor or to a foundation. The mast and boom are made of heavy structural beams, fabricated in sections for easy shipping and handling. The bottom bearing is a selfaligning tapered roller bearing in a machined housing and is provided with a pressure lubrication fitting. The top bearing is a sealed ball bearing with provision to allow for expansion and contraction of the structure to which it is attached. The jib boom is a standard I-beam. All parts are factory tested to assure proper fit and alignment. The overall height of the mast assembly can be varied to suit existing conditions and will proportionately change the height under the boom (B dimension).



Application The 483-CMTR is used where the tie rod type of boom support will provide sufficient clearance under the boom.



Application The 484-CMCB is used where the available headroom dictates that the jib boom be as high as possible to provide adequate clearance under the boom. Note that the compression brace limits hoist travel. Special Vbracing can be provided to accommodate full hoist travel.



Options Bottom Entry Collector Ring Assembly Optional bottom entry electrical collector assembly includes: junction box, internal wiring, collector assembly in web of beam, and junction box in head assembly for power connection to electrical hoist.



Air Swivel This feature provides the capability of 360° rotation when using an air hoist on the boom. Included is a pipe nipple 12" above the floor for attaching the air supply hose, a pipe running inside the pillar connecting to the swivel fitting, and a connector to which the air hose for the hoist can be attached. Top entry systems are also available.



Top Entry Collector Assembly Top entry electrical collector assembly may be used on all size cranes where electrical power source can be connected from top of jib. Internal wiring in pillar is not necessary.



Hand Geared Rotation



Tagline Festoon System An improved festoon system is offered which includes a messenger wire, swivel eye pulleys, and cable connections, with capabilities for attaching round cable.



Anchor Bolts



Custom Designed Jib Cranes



Standard Jib Cranes Download Brochure for Standard Jib Cranes



Introduction to Floor Mounted Jib Cranes