Taping Head Specifications Taping Head TypePad Diameter, CoreMax. Machine SpeedLine SpeedPad Width Range 18″ Concentric18″, 3″1500 RPM225 ft/min1/2″ – 2″20″ Concentric20″, 6″1500 RPM250 ft/min1/2″ – 2 1/2″24″ Concentric24″, 6″1200 RPM275 ft/min1/2″ – 3″