Most customers prefer to have as much area covered by the rotation of one jib as is possible.Pipe pit-casting applications typically see powered rotation jibs – in fact, the first overhead crane in the world was a motorized pit-cast jib crane in Birmingham, Alabama. While this sounds simple, there’s also a need for some margins on the design to allow machinery of the crane to fit in the space as well.For example, the customer in a machine shop with a million dollar computerized machining center next to a jib crane does not want his jib crane to be able to rotate into the neighboring CNC machine.The idea of a jib crane is to cover an area by rotating instead of travelling.However, it is rare to find the traverse(trolley) and rotation motions powered.The finished piece is then transported to the next workstation by the overhead crane in the same building.Many times buyers do not feel the jib crane also needs to be motorized, that the operator can gently push the load to nearby machines and workbenches.For a small additional sum, rotation stops can be installed on most floor-mounted jib cranes.Collectors of this nature help make jibs more flexible because these collectors allow unlimited rotation in one direction.IN that workstation, parts are lifted by the jib crane and mounted into machines and also bolted on to larger assemblies.Simple tag electrification is like a dog’s leash – eventually if the dog walks around a post enough, the leash will become wrapped around the post and the dog will not be able to move any more in that direction. This option is expensive and is usually used in heavy duty or high-capacity applications.However, some customers may prefer to limit the rotation of a jib crane.
For buyers that do want a motorized jib crane, both rotation and traverse(trolley) motions are available as powered motions at extra cost.This decision will be made by the crane engineer because each option has a more appropriate application.It’s common to see the hoist motion powered on a jib crane.The most important dimension is the weight of the heaviest load to be carried. Most jib cranes will have a hoist of approximately 24” height as well as a beam of approximately 12” height.Many times the jib crane is purchased as a cost-effective tool to cover a small workstation.