O Rings

“PSA provides O rings starting from micro O rings to huge diameter O rings for your demanding application”

An O-Ring is a circular rubber or elastomeric sealing ring, designed to create a tight seal between two mechanical components, preventing the leakage of liquids or gases. It is widely used in various industries for its simple yet effective design and versatility.

O-rings are very commonly found in pumps, cylinders, connectors and valves, helping to seal joins between separate parts and prevent leaking of fluids and gases

PSA Polycraft facilities dedicated to producing tailor-made O-Rings, including non-standard and custom varieties. Our swift manufacturing capabilities allow for on-the-spot production of any seal, while our expertise extends to crafting customized elements for diverse sealing applications. Our unwavering commitment to continuous investment in product development, personnel, and customer satisfaction positions us as unrivaled leaders in delivering quality and service excellence.

PSA excels in conducting failure mode and effects analysis to ensure the highest quality commercial O-Rings. Our O-Ring offerings span from micro to large diameter, catering to the specific demands of your challenging applications.

Diverse O-Ring Solutions from PSA Polycraft


PSA Designing the Bellows Innovation: Presenting the Scope of Precision

1. Hydraulic O Rings

  • Effective fluid sealing, resistance to high-pressure environments, and durability

  • Applications: Essential in hydraulic systems for sealing connections and preventing fluid leakage.

2. Pneumatic O Rings

  • Reliable air sealing, low friction, and suitability for dynamic pneumatic applications

  • Applications: Commonly used in pneumatic systems to ensure airtight seals.

3. Rectangular Cross-Sectional O Rings

  • Customizable for unique sealing configurations, effective sealing in non-circular joints

  • Applications: Suited for sealing rectangular or non-circular joints, often found in unique mechanical configurations.

4. D Cross-Sectional O Rings

  • Reliable dynamic sealing, reduced friction, and resistance to wear in reciprocating applications.

  • Applications: Provide effective sealing in dynamic applications with reciprocating or oscillating movements.

5. Piston O Rings

  • Effective sealing in piston-cylinder arrangements, resistance to pressure and temperature variations.

  • Applications: Designed for sealing piston-cylinder arrangements in hydraulic and pneumatic systems.

6. Static O Rings

  • Prevents leakage in stationary connections, stability in non-moving applications.

  • Applications: Used in stationary connections to prevent fluid or gas leakage

7. Dynamic O Rings

  • Flexibility in continuous motion, reliable sealing in dynamic and reciprocating applications.

  • Applications: Engineered for moving parts, offering flexibility in applications with continuous motion.

8. Metric O Rings

  • Precision in metric systems, ensuring accurate and efficient sealing.

  • Applications: Commonly used in industries following the metric system for precise sealing needs.

9. Toroidal Seals

  • Effective sealing in rotating shafts, minimizing friction and wear.

  • Applications: Provide effective sealing in rotating or oscillating shafts, commonly used in machinery.

10. Bonded O Rings

  • Secure, integrated sealing, preventing separation and ensuring enhanced durability.

  • Applications: Ideal for situations where a secure, bonded seal is necessary, often used in automotive and aerospace applications.

11. Encapsulated O Rings

  • Extreme chemical resistance, enhanced durability, and protection in harsh environments.

  • Applications: Suitable for extreme chemical environments, offering enhanced durability and resistance.



Each O-Ring type caters to specific requirements, We ensure reliable sealing solutions across diverse industries and applications.