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Hi-Tech Seals offers spliced and vulcanized O-rings in standard and square profiles, multiple cross sections, and various materials. We also offer quad ring profiles upon request. Customers can purchase our O-ring cord in cut lengths, splicing kits or through our in-house splice and vulcanizing service.
Spliced and vulcanized O-rings are made by cutting extruded cord stock into lengths and then joining them together (splicing). The ends are spliced together by applying a heat-activated bonding agent and placing them in a die for a specific length of time. This process forms a molecular connection to achieve a strong bond.
Spliced and vulcanized O-rings are excellent replacements for any unique-sized static O-ring, withstanding up to approximately 1,200 psi. They are used in various industries including automotive, transportation, construction, food processing, power generation, and more.
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Splice & Vulcanizing Advantages:
- Strong consistent bond quality
- Available in a wide range of materials
- No tooling costs
- Quick turnaround times
- Ability to accommodate large diameters and custom, non-standard sizes.
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Materials Choose from a diverse range of high-performance rubber materials suitable for various applications. Common materials include but are not limited to:
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- Nitrile
- Hydrogenated Nitrile
- Viton™/Fluorocarbon
- Aflas® FEPM
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- Ethylene Propylene
- Neoprene/Chloroprene
- Silicone
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Our material selection includes FDA-compliant materials to meet various industry-specific requirements. If you need additional or specific materials not listed above, please contact a Hi-Tech Seals representative for further assistance.
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Spliced & Vulcanized O-Ring Tolerances
Our spliced and vulcanized O-rings are produced with strict attention to tolerances, ensuring a consistent and reliable seal. See below for sizing and tolerances information.
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Cord Cross-Section Tolerances (RMA E1) |
O-ring Series | Imperial | Metric |
C/S |
Tolerances | C/S | Tolerances |
0 | 0.070 | ±0.008 | 1.78 | ±0.20 |
100 | 0.103 | ±0.010 | 2.62 | ±0.25 |
200 | 0.139 | ±0.010 | 3.53 | ±0.25 |
300 | 0.210 | ±0.014 | 5.33 | ±0.36 |
400 | 0.275 | ±0.016 | 6.99 | ±0.41 |
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O-Ring Spliced Diameter Tolerances* |
Imperial | Metric |
Diameter |
Tolerances | Diameter | Tolerances |
0.00 to 3.18 | ±0.080 | 0.0 to 79.6 | ±2.00 |
3.18 to 5.09 | ±0.090 | 79.6 to 127.3 | ±2.30 |
5.09 to 7.96 | ±0.100 | 127.3 to 200.5 | ±2.50 |
7.96 to 12.73 | ±0.110 | 200.5 to 318.3 | ±2.90 |
12.73 to 20.05 | ±0.130 | 318.3 to 509.3 | ±3.20 |
20.05 to 31.83 | ±0.140 | 509.3 to 795.8 | ±3.60 |
Above 31.83 | ±0.160 | Above 795.8 | ±4.00 |
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*Diametrical tolerances are converted over from RMA S2 extrusion spliced length tolerances. |
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Beyond O-Rings Our splice and vulcanizing expertise extends beyond O-rings to gaskets and other sealing products. All vulcanized products benefit from the same precision that we apply to our vulcanized O-rings. This ensures a high-quality, superior bond suited for diverse applications. Our range of advanced vulcanizing capabilities includes, but is not limited to:
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- Extruded Profiles
- Gaskets
- Split Rotary Seals
- Rubber-to-metal Bonding
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- Encapsulated O-rings
- Industrial Tubing
- Continuous Molded Products
- Other bonding services
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Commitment to Customer Service Customers choose our splice and vulcanizing services not only for quality products; they also rely on our trusted team to deliver value and support their business goals. Our team of professionals is prepared to provide you with expert technical support, quick response times, and assistance tailored to your unique challenges and requirements. By leveraging our industry-leading turnaround times, we ensure your projects remain seamlessly on track. |
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Contact us today for more information on our splice and vulcanizing services or to request a quote. |
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