The Slide-Column Crane (shown at left) lifts completed engines using hooks. The slide column is extremely useful in eliminating the swinging that results when tractor drives are used with heavy loads.The slide column crane is a rigid column that will not swing like a hoist chain does.For example, when "North" tractor is activated a typical hoist would begin swinging the load. The slide-column crane eliminates the swing and offers exceptionally smooth control.A slide column crane can also support offset loads, such as picking up a load from an overhead conveyor.Rating: For heavy loads, is the most operator-friendly crane type