Simplex R59, Single Acting, Spring Return Steel Cylinder, 5 Ton Capacity with 9.18" Stroke, 10,000 psi Operating Pressure is an industry standard, general purpose cylinder that can be used in any position and is an excellent choice for maintenance lifting, machinery positioning or production applications. All Simplex R series models come standard with heavy duty spring for easy retraction and high flow coupler and dust cap. Includes piston and collar threads and base mounting holes for easy fix Turing.