The nest type of end-effector is commonly used in pick and place applications where no horizontal part rotation is required. This end-effector generally will hold the part in cradle type lift pads or fingers to keep the part “nested” and secure for transfer. Some of the advantages of using this type of end-effector are: No clamp or unclamp buttons to push, easier to locate end-effector to part, and faster cycle time.
This type of tool would be suspended from most forms of lift assist (arms, cable balancers, vertical balancers), but is more likely to be found suspended from a cable balancer utilizing a bridge and runway system.