The SPN type shaft seal is a bidirectional piston rod seal consisting of a PTFE-bronze composite or high-hardness polyurethane piston rod sealing ring and an E-ring.
The SPN type seal is particularly suitable for use in control cylinder servo systems, machine tools, fast-response cylinders, and bidirectional piston rod cylinders in construction equipment.
Main advantages: ◆ Applicable to integrated hydraulic cylinders.
◆ Small installation size.
◆Extremely low starting and moving friction, ensuring smooth movement even at low speeds without any creeping phenomenon.
◆Resistant to wear and tear.
◆ Resistance to compression.
◆ High-temperature resistant materials are optional.
◆ Due to the high resistance to chemical media and corrosion characteristics of the sealing ring, as well as the option to select E-rings and sealing rings made of different materials, the SPN type seal can be applied to almost all media.
◆ Due to the special shape of the sealing structure, it has good oil film return characteristics.
◆ Products with a maximum diameter of 2000mm are available.