Lift and move items with electricity—no need for an air supply or complicated control valves. These grippers have a servomotor that opens and closes the jaws in a parallel motion, like elevator doors, with a consistent gripping force in either direction. This lets you grab parts from the outside or open the jaws inside hollow parts to grab them when the outside is hard to grip. Adjust the gripping force with the switch on the side. Open and close these grippers with digital signals from your controller. You’ll also need gripper fingers—choose ready-to-use fingers (sold separately) or machine your own to grip complex shapes.

External force and internal force describe how hard the gripper can squeeze your part at the fingertips, also called the gripping distance. The less friction there is between the part and fingers, the more force you’ll need to lift a part. Typically, you’ll need a force that’s about 10 times the part’s weight, but an oily part might need a force about 20 times its weight. However, air pressure and finger length also affect the ideal force. Click on a part number and select "Product Detail" to view a chart that shows how external or internal force changes as the gripping distance changes.