Spring Energized Seals

Extended Heel Canted Coil Spring Seals are often specified when less than ideal run-out and side-loading conditions are present. If these conditions exist, there is a good possibility that large extrusion gaps exist, which can cause standard seals to fail.


The extended heel design enhances these seals by incorporating extra jacket material that effectively shields the functioning spring side of the seal from distortion and potential failure. This additional protection significantly increases the seal's resistance to extrusion, making it a reliable choice for demanding applications.


The seal’s design allows pressure ratings to be doubled compared to non-extended designs. This feature is helpful in applications where mechanical stresses are intense and seal integrity is critical. The extended heel prevents the seal from distorting under pressure and enhances its overall durability and lifespan. This makes them ideally suited for systems like water jet cutting machines, which often incorporate extended heel designs due to their high-pressure operational requirements.


Applications for Extended Heel Canted Coil Spring Seals span various industries, including aerospace, automotive, and heavy machinery. Their ability to perform reliably in adverse conditions, coupled with their enhanced structural support, makes them an essential component in complex mechanical systems that require tough sealing solutions to maintain efficiency and prevent downtime.

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What you'll get out of these product modules

Our product modules offer an in-depth step-by-step guide to help make choosing and ordering the right product for your project easy.

With every product module you’ll receive the following:

  • Introduction to the product and a typical range of applications including temperature, pressure, velocity and media.
  • Detailed ordering examples and product illustrations.
  • Chart of standard seal materials including eclipse material code, description, color and applications.
  • Chart of standard part numbers including part number, rod Ø, groove Ø, groove width and o-ring dash size.
  • Hardware details including a cross section series, min rod ø for solid gland installation, r radius (max) and c lead-in chamfer (min).
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Why Choose Eclipse?

We offer custom solutions to a wide variety of seal needs that span various industries, from aerospace to automotive to mountain bike design.

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Quality Products

Eclipse was the first supplier to offer a full range of materials that meet the latest SAE spec AMS3678, which requires a high degree of testing and certification to meet the needs of our most discriminating customers.

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Fast Turnaround

We understand your time is valuable. That’s why we work to get your product designed and delivered fast, eliminating downtime and saving you money.

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Competitive Pricing

We stay ahead of the game with the best prices for the best quality of product in the industry.

Why Choose Eclipse?

Eclipse was founded under the premise that if we could solve enough of our customers’ problems they would continue to come back to us for solutions regardless of the type of products we offered.


Eclipse has evolved to produce standard product o-rings for a wide range of industries including Hydraulics, Pneumatics, Energy Production, Aerospace as well as Pharmaceutical and Food Handling. Instituting ISO9001/AS9100 quality system in 2015 allowed Eclipse to become a top tier supplier.


Today, Eclipse can support our smaller customers that require only a few seals a year to those needing in the 100’s of thousands. We continue to retain a quality product and are able to deliver consistently on time. Our customers continue to bring us challenging projects that allow our team to do what we do best, problem solving.

Project Request Form

"We started Eclipse with the premise that if we could solve enough of our customers problems they would continue to come back to us for solutions regardless of the type of products we offered."

Engineers

What Can We Help You With?

Start a project request form and give us the specifics of your project. Our team will review and be in touch with you shortly!

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