Abstract: A fluid pressure actuated gripper employed in automated workpiece handling systems. The gripper clampingly grips and transfers workpieces from one station to another. A pair of jaw members are positioned in the gripper device which has a pressure-actuated mechanism, a base plate and removable side plate members. A pair of axially offset cam pin members attached to the end of a piston rod and actuated by the pressure-actuated mechanism is used to open and close the gripper jaw members. Pivot pins or shafts pivotably connect the jaw members to the side plate members.