Powerful air/hydraulic press delivers 23 tons of force with only 110-psi air pressure. It combines rapid air-powered approach stroke with a short intensified power stroke from an integrated hydraulic booster cylinder. The power stroke activates automatically when the tool touches the work piece. With an 8” throat opening, the approach stroke can be up to 1-1/4” long. The intensified power stroke is 1/16” (2mm) to 11/64” (4.5mm).