
| Spanco
Jib Spanco Gantry Cranes CQ Cordell Quality Overhead Bridge Cranes |
Today's industry demands equipment which is versatile, efficient, and cost effective, while at the same time providing more flexibility along with significant savings through increased productivity. A Jib Crane can help improve materials handling efficiency and job safety and should be given serious consideration for situations that require repetitive lifting, or transferring of loads. How
To Choose The Right Jib Crane
CAPACITY: The maximum weight of the application should match, not exceed, and design weight. The capacity rating is based on a design load, which includes the capacity rating of the crane plus 15% of the capacity for the weight of the hoist and 25% of the capacity as an allowance for impact. The deflection is based on a design load, which includes capacity plus 15% of capacity for the hoist. The design criteria allow the least amount of deflection so as not to hamper the performance of the crane. AREA OF ROTATION: The free standing and mast type jib cranes offer 360 degrees rotation. The wall-mounted types offer 200 degrees rotation. UNDER BOOM HEIGHT: This is the distance from the floor to the underside of the boom. The size of the hoist and the amount of travel or lifting distance should also be considered. OVERALL HEIGHT: This is the height to the highest point on the crane after installation. Any attachments, such as electrical entry, should also be considered to provide full rotational potential of the crane, and to be free of overhead obstructions. WORKING SPAN: The amount of actual working area needed. This "working distance" or hook distance is approximately one-half the trolley length from the end of the beam, also this same distance from the head assembly. POWER / MOTOR REQUIREMENT: How much power is necessary? Is the power for rotation, trolley, or hoist or perhaps all three? Then how is the power to be supplied? Bottom or top entry? Electric or air? Finally, does the system need to be weatherized or is it for indoor use. INSTALLATION: Can the crane be assembled easily to reduce cost? The location will also dictate the type of crane to be selected to insure proper installation.
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