Vacuum lifters are ideal when handling flat or slightly curved non-porous parts. These industrial end effectors can pick up many different shapes from doors, windows, boxes, bags, and round ingots of material. These ergonomic lifters are available with adjustable vacuum cups, allowing the operator to pick up different sized parts. During the design and approval process, the customer has the ability to request different vacuum configurations and safety features. These features include multiple vacuum circuits, check valves on vacuum cups, and a load presence release circuit. Many of these vacuum manipulators give operators the ability to rotate the part in several different orientations.