Center hole permits extending screws, cables, etc. straight through the ram. This single acting, spring return ram has interchangeable piston head inserts for versatility and tapped base mounting holes for easy installation. Plated piston rods resist wear caused by side loading and superior packings and seals for high cycle life without leakage. Furnished with a model 9796 quick coupler. Other sizes of Center Hole rams are available. Call for a complete listing.