Abstract: A suction lifting head for use in the lifting and transport of generally flat workpieces is designed to conform to its use with workpieces varying in size and produce activation of such suction ports therein as necessary to perform the lifting of the workpiece. The lifting head is constructed with a body having an outer suction port(s) at a surface of the body, a valve chamber(s) connected to the outer suction port and intervening an inner suction port which in turn is in communication with a vacuum main connection at a side of the body remote from the surface having the outer suction port(s). A valve disk with multiple holes for air flow is located inside the valve chamber. These holes are located in the valve disk to be positioned radially beyond the circumference of the outer suction port and such that circumferential portions of the valve disk will be supported on a stepped section in the valve chamber when a workpiece is lifted against the outer suction port.