Simplex offers the widest selection of cylinder styles, tonnages and strokes to match your specific requests. All Simplex cylinders meet ANSI/ASME B30.1 SAFETY STANDARDS. Stop rings, plated pistons and heavy duty construction provide trouble free operation and long life. Cylinders are designed for 10,000 psi operating pressure which offers a smaller footprint and greater force. Threaded collars and internal plunger threads withstand full loading for maximum flexibility in fixturing. All Simplex cylinders (excluding CLP Series) incorporate a positive piston stop to limit piston travel at the end of the stroke, and allows the cylinder to be operated at full stroke. Piston stops add strength and safety to your cylinder.