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Canted Coil Spring Energizers for Spring-Energized Seals

Custom canted coil spring energizers for dynamic and static sealing applications, with controlled spring loading,
stable force characteristics, and application-specific dimensions.

Near-Constant Force
Wide Deflection Range
Custom Dimensions
Multiple Spring Materials
Overview

Canted Coil Spring Energizer

Canted coil spring energizers are installed inside spring-energized seals to provide the spring load that keeps the sealing jacket in contact with the mating surface.

The angled coil geometry allows individual coils to deflect as the spring is compressed, producing a relatively flat force curve over the working range. This makes canted coil springs suitable for sealing systems that require controlled loading, low friction, and compensation for dimensional variation or wear.

  • Relatively stable force over the working range
  • Wide working deflection
  • Low and controlled spring loading
  • Suitable for dynamic and static sealing
  • Custom dimensions and spring force
  • Stainless steel and specialty alloy options

Spring performance depends on the complete sealing system, including seal material, lip geometry, groove design, pressure, temperature and motion.

Handa Spring manufactures canted coil spring energizers for spring-energized seal manufacturers and sealing-system applications, including custom spring dimensions, load characteristics and materials.

Canted Coil Spring Seal - Handa Spring
Design Paramteers

Canted Coil Spring Force & Design Parameters

Key Design Variables

  • Wire diameter (A)
  • Spring width (B) & height (C)
  • Cut length (T)
  • Ring diameter (ID)
  • Spring force
  • Working deflection
  • Seal groove dimensions
  • Spring material

For custom projects, spring dimensions and load characteristics can be developed from a spring drawing, seal drawing or existing sample.

FORCE VS. DEFLECTION

Canted Coil Spring Force vs Deflection Curve - Flat Load Characteristic

Canted coil springs typically provide a relatively flat load curve over their working deflection range, allowing the spring load to remain more consistent as the seal compensates for wear or dimensional variation.

Canted Coil Spring Dimensions - Wire Diameter, Spring Width, Spring Height, Cut Length, Ring Diameter

Dimension Reference: A = Wire Diameter |  B = Spring Width  |  C = Spring Height  |  T = Cut Length  |  ID = Ring Diameter

Custom dimensions available. Contact us for full specifications or specialized geometries.

Representative Standard Spring Series

The table below shows representative standard series. Most Handa Spring production is custom-engineered to customer drawings or application requirements.

Series Load A (mm) B (mm) C (mm) T (mm) ID (mm)
HD-CS-L132 L 0.08 0.62 0.70 7.60 1.80
HD-CS-M132 M 0.10 0.62 0.70 7.60 1.80
HD-CS-H132 H 0.12 0.65 0.75 7.70 1.80
HD-CS-L000 L 0.12 1.40 1.55 12.90 2.70
HD-CS-M000 M 0.15 1.40 1.55 12.90 2.70
HD-CS-H000 H 0.20 1.20 1.32 12.20 2.70
HD-CS-L100 L 0.18 2.00 2.40 19.80 4.30
HD-CS-M100 M 0.35 2.00 2.40 20.10 4.40
HD-CS-H100 H 0.35 2.00 2.30 19.80 4.30
HD-CS-L200 L 0.30 2.80 3.20 30.10 6.80
HD-CS-M200 M 0.35 2.80 3.20 30.10 6.80
HD-CS-H200 H 0.40 2.80 3.20 30.10 6.80
HD-CS-L300 L 0.40 4.00 4.50 42.70 9.60
HD-CS-M300 M 0.50 4.00 4.50 42.70 9.60
HD-CS-H300 H 0.60 4.00 4.50 42.70 9.60
HD-CS-L400 L 0.50 5.50 6.00 61.20 14.00
HD-CS-M400 M 0.60 5.50 6.00 61.20 14.00
HD-CS-H400 H 0.70 5.50 6.00 61.20 14.00
HD-CS-L500 L 0.60 8.20 9.20 96.40 22.50
HD-CS-M500 M 0.70 8.20 9.20 96.40 22.50
HD-CS-H500 H 1.00 8.20 9.20 96.40 22.50
HD-CS-L600 L 0.70 11.40 12.80 152.00 37.00
HD-CS-M600 M 1.00 11.40 12.80 152.00 37.00
HD-CS-H600 H 1.20 11.40 12.80 152.00 37.00
Contact us for complete specification sheet and custom dimensions →

Selection Guide

Canted Coil vs. Other Spring Energizers

Spring Type Typical Characteristic Common Selection
Canted Coil Relatively stable force, wide deflection Dynamic sealing, low friction, compensation
Helical Higher progressive load High load, low-pressure or demanding sealing
Cantilever Flexible, low-to-moderate load General dynamic sealing
Full Contact Higher contact support High-load or demanding sealing
Detached Leg Very low load Low-friction applications

The appropriate spring type depends on seal geometry, required load, motion, pressure, temperature and installation space. Send us your seal drawing if you need help selecting the spring type.

Not sure which spring type fits your application? Send us your seal drawing.

Materials

Spring Material Options

Spring material is selected according to temperature, corrosion resistance, fatigue requirements, force retention and sealing environment.

Elgiloy®

High fatigue and corrosion resistance.

MP35N®

High strength, excellent corrosion resistance.

Inconel® X‑750

High‑temperature spring performance.

Inconel® 718

High strength at elevated temperature.

Hastelloy® C‑276

Aggressive chemical environments.

17-7PH

General‑purpose stainless spring steel.

301 Stainless Steel 

Standard stainless spring alloy.

316 Stainless Steel 

Corrosion resistance for general service.

Material selection depends on operating temperature, corrosion resistance requirements, media compatibility, and expected service life. High-performance alloys are frequently selected for cryogenic, chemical processing, and semiconductor sealing applications.

Browse All Materials →

Applications

Common Applications

Canted coil spring energizers are commonly considered for:

Cryogenic Valves Reciprocating sealsDynamic sealingRotary seals Vacuum sealing Gas sealing Hydrogen Systems Applications with limited installation space
Medical Equipment LNG Equipment

Industries Served

🔬 Semiconductor ❄️ Cryogenic ✈️ Aerospace 🌬️ Vacuum Technology ⚡ Energy 🧪 Analytical Instrumentation 🏥 Medical ⚙️ Industrial Automation
Custom Manufacturing

Custom Canted Coil Spring Manufacturing

Customization Options:

  • Custom dimensions
  • Custom spring force
  • tainless steel and specialty alloys
  • Prototype production
  • Force testing
  • Dimensional inspection
  • Heat treatment
  • Cutting / welding where required
  • Cleaning and surface finishing

MOQ, sample lead time and production lead time are confirmed on a case‑by‑case basis.

Canted coil spring manufacturing drawing
Custom

Need a Custom Canted Coil Spring Energizer?

Send us your spring drawing, seal drawing, existing sample or application requirements. We can review the required spring dimensions, material and force characteristics, and discuss the most practical manufacturing approach.

I Have a Drawing or Existing Seal

Already have a drawing, sample or existing part? Send us your:

  • Spring drawing or seal drawing
  • Existing sample or part number
  • Dimensions and material specification
  • Required quantity and application notes

We can review the requirements and provide a quotation for replacement or new production.

I Need a New Sealing Solution

Developing a new product or sealing system? Share your operating conditions:

  • Temperature range
  • Pressure range
  • Media / fluid type
  • Motion type (static, rotary, reciprocating)
  • Shaft / bore dimensions
  • Installation space

Our engineering team can help evaluate a suitable canted coil spring configuration.

faq

Frequently Asked Questions

  • 1. What is a canted coil spring energizer?

    A canted coil spring energizer is a precision spring element used inside spring energized seals to maintain consistent sealing force. Its unique angled coil geometry allows individual coils to deflect independently, producing a near-constant force behavior that improves sealing stability in dynamic applications.
  • 2. How does a canted coil spring differ from a helical spring?

  • 3. What are the advantages of canted coil spring energizers?

  • 4. What applications use canted coil spring energizers?

  • 5. Can canted coil spring energizers be used in cryogenic environments?

  • 6. Are canted coil springs suitable for vacuum applications?

  • 7. What materials are available for canted coil spring energizers?

    Common materials include Elgiloy (high corrosion resistance, medical & semiconductor), Inconel X-750 (high temperature), Inconel 718 (high strength), Hastelloy C-276 (chemical resistance), and 17-7 PH Stainless Steel (general industrial use).

  • 8. How is the spring load selected?

    Spring load is selected based on seal cross-section, groove design, operating pressure, temperature range, motion type (static, reciprocating, rotary), and friction requirements.

  • 9. Can spring load be customized?

    Yes. Spring load can be fully customized based on application requirements. Custom load tuning is commonly used for PTFE spring energized seals in demanding operating conditions.

  • 10. What is the typical lead time for a custom helical spring?

    For prototyping, lead times range from   3–5 days. Production timelines depend on geometry complexity, material selection, and order quantity. Expedited options are available upon request.

  • 11. What seal types are compatible with canted coil springs?

    They are commonly used in axial seals, radial seals, face seals, dynamic seals, and static seals.

  • 12. Do you provide custom designs and prototypes?

    Yes. Custom engineering support and prototype production are available. We can manufacture springs based on customer drawings or sealing system requirements.

  • 13. What information is required for a quotation?

    To provide an accurate recommendation or quotation, please provide: seal cross-section or drawing, groove dimensions, operating temperature, pressure conditions, media type, motion type, and material preference.

Contact Handa

Have Questions?

Talk with our engineers about your canted coil spring application.

Request Engineering Support → Send Your Seal Drawing

+86 13169905499  |  sunny@handaspring.com