The R01 type seal is a high-performance one-way piston rod seal made of premium polyurethane (PU) material. It features an asymmetric cross-section structure with a retracted inner sealing lip. The outer diameter of the seal adopts interference fit with the cavity aperture to ensure tight fitting and stable sealing preload. Adopting innovative tool-free processing technology, this seal supports rapid customization of special sizes. With excellent medium resistance, wide temperature adaptability and reliable static and dynamic sealing performance, it can be used independently or as an auxiliary secondary seal in integrated sealing systems, suitable for various heavy-duty and large-size hydraulic equipment.

Manufactured from high-quality polyurethane material, it features outstanding elasticity, compression recovery and wear resistance. The material owns excellent medium resistance against conventional hydraulic oil, lubricating oil and other industrial media, avoiding swelling, aging and corrosion failure. It supports a wide working temperature range, maintains stable physical and sealing performance in variable temperature environments, and delivers long-term reliable service in dynamic and static working conditions.

• One-way Piston Rod Sealing Function: Professional single-direction sealing design provides stable one-way pressure maintaining and leakage prevention performance, meeting the one-way sealing requirements of hydraulic piston rod systems.
• Asymmetric Cross-section with Retracted Inner Lip: The asymmetric cross-section structure and retracted inner sealing lip optimize stress distribution, reduce operating friction, and effectively improve the stability of dynamic reciprocating sealing.
• Outer Diameter Interference Fit: The outer diameter is in interference fit with the cavity hole diameter, ensuring tight and firm installation, effectively preventing seal loosening and displacement caused by pressure fluctuation and vibration.
• Innovative Tool-free Processing Technology: Adopts advanced new processing craft without fixed molds, enabling fast and flexible production of special and non-standard sizes, greatly shortening customization cycle.
• Excellent Medium Resistance: Resists erosion of various hydraulic media, with stable chemical properties, not easy to deform or fail in complex medium environments.
• Wide Working Temperature Range: Adaptable to diverse temperature working conditions, maintaining consistent sealing performance in low-temperature and high-temperature operating environments.
• Superior Static & Dynamic Sealing Performance: Delivers reliable pressure holding effect in static state and stable leakage-free sealing during high-frequency dynamic reciprocating movement.
• Dual Usage as Main or Auxiliary Seal: Flexible application mode, can be used independently as the main sealing unit or matched as a secondary auxiliary seal in composite sealing systems to enhance overall sealing reliability.
• Large Size Coverage & No Mold Required: Covers a wide range of standard and large sizes. No mold development is required for special sizes, greatly reducing production cost and improving product adaptability.

Widely applied in injection molding machines, pressure machines, heavy-duty machinery and large-size hydraulic cylinders. It is an ideal sealing solution for standard and non-standard large-size hydraulic piston rod sealing systems.