1. RSR series Hydraulic Jacks has cylinders are perfect for bridge lifting, building reconstruction,shipyard,utility and mining equipment maintenance.
2. Relief valves that prevents damage in case of over - pressurization.
3. Hollow plunger design allows for both pull and push forces.
4. Collar threads are easy fixturing and all collar threads have a cap for protection.
5. It has a special center tube protect plunger and inner of cylinder increases product life.
6. Internal hard chrome-plated and external surface coating resists cylinder corrosion.
7. Wiper rings protect the piston, bore and tube from contamination.
8. There is a stop ring for piston blow out protection.