Precision O-rings for any dimension. 5,000+ tools cover micro to large seals. AS568 & Metric compliant for an exact fit and optimal performance.
Our vast tooling library and advanced molding deliver precision O-rings from micro to macro scales, ensuring a perfect, zero-defect fit for critical systems.
We support full-spectrum size requirements, from micro-precision rings for sensitive electronics to large-diameter industrial seals for massive heavy-duty tanks.
Go beyond standard profiles. We specialize in molding custom cross-sections (CS) tailored to fit unique and proprietary groove geometries in specialized mechanical assemblies.
Utilizing high-precision injection and compression technology to achieve micron-level tolerances that exceed industry standards, ensuring peak performance in high-pressure seals.
Our integrated mold-making facility can design and produce custom O-ring tooling for new specifications in as little as 3–5 business days.
Every production run is monitored by automated dimensional verification systems, ensuring that from the first part to the millionth, the dimensions remain perfectly uniform.
Advanced cryogenic and mechanical deflashing processes eliminate parting-line flash, creating a seamless sealing surface that prevents bypass leakage under extreme stress.
Comprehensive technical specifications to help you select the right O-ring for your application. Custom compounds available on request.
| Product Specifications | |
|---|---|
| Size Standards | AS568, ISO 3601, JIS B2401, DIN 3771, SMS 1586 |
| Inside Diameter (ID) | 0.4 mm – 2,500 mm+ |
| Cross-Section (CS) | 0.3 mm – 25.0 mm+ |
| Tolerance Class | ISO 3601-1 Class A & B |
| Surface Finish | Flash-free, N5–N7 Surface Quality |
| Hardness Range | 30 Shore A to 95 Shore A |
With over 3,500 standard profiles in stock and the capability to manufacture custom sizes, we have the right O-ring for virtually any application.
Standard Profiles
Minimum ID
Versatile sealing for every dimension. Our wide-ranging O-ring inventory supports critical hardware in manufacturing, fluid logistics, and precision instruments.
The universal choice for industrial reliability. Standardized sealing for gearboxes, pulley systems, and automated production machinery across all metric and imperial sizes.
Specialized micro-sized O-rings designed for dust-proofing and water-resistance (IP68) in wearables, smart sensors, and handheld mobile devices.
Large-diameter vulcanized or molded O-rings engineered specifically for sealing industrial mixing tanks, chemical reactors, and large-scale storage vessels.
Exact-fit seals designed for high-pressure pumps, commercial control valves, and municipal water distribution systems, ensuring a tight fit even in non-standard grooves.
High-tolerance O-rings for precision equipment such as spectrophotometers, gas chromatographs, and specialized diagnostic instruments where seal consistency is vital.
Weather-resistant sealing for external enclosures and hydraulic pitch control systems in solar arrays and wind turbines, handling extreme outdoor exposure.
Thick-cross-section O-rings engineered for deep-sea pressure resistance. Ideal for underwater sensors, offshore drilling equipment, and maritime propulsion systems.
Durable, cost-effective seals for domestic washing machines, commercial-grade coffee brewers, and industrial refrigeration units, optimized for high-cycle longevity.
If your project requires an O-ring size that doesn't exist in any standard catalog, our engineering team is ready to design a custom solution.
We use CAD modeling to determine the perfect ID and CS based on your specific seal groove design.
Custom compounding to ensure the rubber matches your unique pressure and environmental needs.
Quick-turnaround mold creation for functional testing samples within 5 business days.
Full dimensional measurement reports (FAI) and material certifications provided for every batch.
Explore complementary sealing solutions from our comprehensive product catalog.
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Our engineering team reviews your specs and responds within 24 hours with material recommendations and competitive pricing.
