As discussed earlier, cranes can make a minimum of three movements. A crane can move up/down (hoisting), right/left (crossing) and forward/backwards (traversing) or rotating in a radius on the X-axis. The crane has a hoist and trolley so that it can move up/down and move to the right/left along the girder like in an overhead travelling crane, or moving along a boom like in a jib crane. For the crane to be able to move forward/backwards, a pair of saddle or end carriages are added so that the crane can move along the runway. There is a pair of bearings on the jib crane, added between the pillar and the boom so the crane can rotate up to 360 degrees.
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