O-Rings
Elastomer sealing rings for static and dynamic sealing applications across a wide range of industries
O-rings are precision-engineered sealing components designed to provide reliable performance in static, reciprocating, and low-speed rotational applications across a wide range of industries. Saiensi manufactures reliavle O-rings using advanced synthetic rubber materials, supported by over 30 years of expertise in sealing technology. The company integrates rubber formulation development, sealing system design, vibration control engineering, and process innovation to ensure product excellence. With complete production and testing facilities, Saiensi maintains strict quality control and fast project turnaround, delivering fully customized O-ring solutions that meet diverse operational and environmental requirements.
O-rings are widely used in mechanical equipment, automotive systems, marine and aerospace applications, construction and chemical machinery, mining equipment, and instrumentation. They are suitable for static sealing, reciprocating motion sealing, and low-speed rotational sealing environments.
Available materials include NBR, HNBR, EPDM, Silicone (SI), Fluoroelastomer (FPM), and Fluorosilicone (FLS). Special formulations are developed for resistance to high and low temperatures, oil, acids, alkalis, wear, and corrosion.
- Models: UHSO, UHPO, UNO, DHO, piston rod O-rings, high-temperature O-rings, high-pressure O-rings, corrosion-resistant O-rings, and wear-resistant O-rings
- Standards: GB 1235-76, GB 3452.1-92 (China); P TYPE, G TYPE, S TYPE, SS/V TYPE, F TYPE (Japan); AS568 (USA); British and European series
- Technical requirements: Appearance, dimensions, and material performance can be customized according to client specifications
Special formulations are achieved through chemical or blend modification to enhance rubber properties.
| Rubber Material | Standard Temperature Range (°C) | Extended Range (°C) |
| NBR | -25~100 | -50~150 |
| HNBR | -20~150 | -60~175 |
| EPDM | -40~150 | -50~200 |
| Silicone (SI) | -50~220 | -100~250 |
| Fluoroelastomer (FPM) | -20~200 | -40~250 |
| Fluorosilicone (FLS) | -50~175 | -60~200 |
| SBR | -30~100 | -50~110 |
| IIR | -50~100 | -60~130 |
| CR | -40~100 | -50~150 |
| CSM | -40~120 | |
| ACM | -15~150 | -25~175 |
| NR | -20~100 | |
| PU | -30~75 | -50~100 |
With extensive experience, advanced manufacturing facilities, and comprehensive customization capabilities, Saiensi delivers reliable O-rings tailored to meet diverse sealing requirements across industrial and mechanical applications.