This is a new 50Ton Hydraulic Cylinder. Specification: Material: tool steel Tonnage: 50T Working stroke: 64mm Compression area: 56.7cm² Oil consumption: 0.113l Height: 69mm Total extension height: 135mm Outer diameter: 138 115mm Inner diameter: 98mm Spindle diameter: 85mm Weight: 7KG Features: 1. Lightweight design for small workspace 2. Chromium plated surface of piston, prolonging the service life of piston 3. Plunger has the function to retracting automatically. Stroke Hydraulic Cylinder Flat Jack Low Profile Ram Tool Steel 50 Ton 64mm 2.52. Compression area: 56.7cm². Oil consumption: 0.113l. Total extension height: 135mm. Outer diameter: 138 115mm. Lightweight design for small workspace. Chromium plated surface of piston, prolonging the service life of piston. In order to operate correctly, all oil cylinders need to be connected with solid and flat surfaces. For example, using thin oil cylinders in sandy soil or loose surfaces will cause damage to the oil cylinders. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Feedback is very important to us. It is impossible to address issues if we do not know about them! Faction is our ultimate goal. We work hard to earn your trust and future business. A If you receive a defective item, you may return it or ask for a discount. Due to time zones, our reply to your questions may not be immediately. If it’s non-workdays, please kindly be patient and wait till Monday. Hollow Hydraulic Cylinder Jack.