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Continuously Molded & Infinite "Giant" Diameter O-Ring

Many industries demand extremely large O-ring seals, and Canyon Components delivers! Through Continuous Molding O-rings or Splice & Vulcanizing O-rings, Canyon can supply large O-rings and custom rubber O-ring seals at competitive prices without the expense of dedicated full-size molds.


Our “infinitely large” O-rings provide flexible sizing options for applications that exceed standard O-ring dimensions. These giant O-rings are available in over 100 different compounds, with options that eliminate expensive custom O-ring molds and minimum order quantities. Achievable dimensions depend on the O-ring material, cross section, and production method.


Whether you need a single large rubber O-ring or recurring production quantities, Canyon Components can help you select a suitable material and manufacturing approach. Our engineering team can review your dimensions, operating conditions, and sealing requirements.

Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to get in touch with our engineering team and let them know what you require.

Infinite diameter O-rings from Canyon Components designed for sealing large vessels, tanks, and custom enclosures.

Infinite diameter O-rings from Canyon Components designed for sealing large vessels, tanks, and custom enclosures.

Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Materials Available

This table shows many of our standard materials and links out to our O-ring store. Get in touch with us if you need a custom gasket, custom molded part, or non-standard geometry!

Options Available

Continuous Molding

Continuous Molding Continuously molded O-rings
Continuous Molding O-rings is our preferred method for producing infinitely large O-rings. Using proprietary O-ring manufacturing methodologies, material is molded in a continuous arc, allowing us to supply seamless, tight tolerance O-rings in custom diameters without additional dedicated full-size mold costs.

For demanding applications, continuously molded large O-rings offer a higher-performance alternative to spliced seals. They are our preferred option among these manufacturing methods for dynamic O-ring applications and high pressure or vacuum O-ring applications, subject to application review.


Advantages

  • High performance O-ring parts for demanding sealing requirements.
  • Preferred option among these methods for dynamic O-ring applications and high pressure or vacuum O-ring applications.
  • Nearly indistinguishable from fully molded O-rings.
  • Consistent manufacturing quality.
  • Custom large O-ring diameters without dedicated full-size molds.

Disadvantages

  • Comparatively higher costs than spliced and vulcanized O-rings.
  • Comparatively longer lead time.

Precision Vulcanization

Precision Vulcanization Spliced and Vulcanized O-rings
Precision Vulcanization joins O-ring cord to create a large O-ring with a controlled vulcanized splice. This method offers a balance of cost and manufacturing consistency for suitable standard O-ring sealing applications.


Advantages

  • Mid performance O-rings that work well in suitable standard O-ring sealing applications.
  • Consistent manufacturing quality.
  • Custom sizing for large O-rings without a dedicated full-size mold.

Disadvantages

  • Not recommended for vacuum applications.
  • Not recommended for high pressure applications.
  • Not recommended for dynamic applications.

Standard Vulcanization

Standard Vulcanization Spliced and Vulcanized O-rings
Standard Vulcanization provides an economical way to produce giant O-rings by joining cut lengths of O-ring cord. These seals work best in static O-ring applications at low pressures where the application can accommodate the limitations of a spliced joint.


Advantages

  • Mid performance O-rings for suitable static O-ring applications at low pressures.
  • Lowest cost option among these methods for infinitely large O-rings.
  • Flexible sizing for custom large O-ring seals.

Disadvantages

  • Can have inconsistent quality, particularly at the splice.
  • Not recommended for vacuum applications.
  • Not recommended for high pressure applications.
  • Not recommended for dynamic applications.

Back to Elastomers Hub

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Canyon Components offers giant O-rings in custom diameters beyond standard O-ring sizes. Our “infinitely large” O-ring options avoid the diameter restrictions imposed by a dedicated full-size mold. Practical size limits depend on the rubber O-ring material, cross section, manufacturing method, and handling requirements. Contact our engineers to discuss your required dimensions.

O-ring material selection depends on the chemicals, temperatures, pressures, and movement involved in the application. Canyon Components offers large O-rings in over 100 different compounds. Our engineering team can help evaluate material options alongside the manufacturing method, since both affect the suitability of the finished seal.

Conventional O-rings have a round cross section. Square O-rings have a square cross section, while “flat O-rings” may refer to square rings, rectangular seals, or flat washer-style gaskets. These profiles are not automatically interchangeable. Provide a drawing or cross-sectional dimensions so our engineers can identify the seal you need.

Yes. In addition to large O-rings and giant seals, Canyon Components supports standard, metric, and micro O-ring requirements. Small O-rings and tiny O-rings require careful identification of the inside diameter, cross section, and material. Send us your dimensions or drawing for help finding a suitable option.

An O-ring store is a convenient starting point for standard sizes and listed materials. For custom large O-rings, unusual dimensions, or demanding operating conditions, request a quote so the size, O-ring material, and manufacturing method can be reviewed together. This is particularly useful for dynamic, high pressure, and vacuum applications.

A standard O-ring kit contains a selection of predetermined sizes and may not include the large O-rings your equipment requires. Cord-based repair kits can create custom loops, but a field-joined seal should not be assumed equivalent to a continuously molded or professionally vulcanized O-ring. For critical equipment, have the replacement seal and joining method reviewed for the application.

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These products may be covered by existing or pending patents. Canyon Components is not liable for the accuracy, currency, or completeness of information herein. All information is subject to change without notice. All trademarks and service marks are the property of their respective owners. Made withgu.dev, Icons by Icons8

* Disclaimer: Kalrez® is a registered trademark of DuPont™. It represents a high-performance perfluoroelastomer used in demanding sealing applications. Please note that the Kalrez® brand is not owned by Canyon Components. All rights and ownership of the Kalrez® trademark are held by DuPont™, ensuring the quality and reliability associated with this renowned brand.