What is a spring energizer?

A spring energizer is a precision spring component installed inside spring-energized seals to provide continuous loading force to the sealing jacket. It helps maintain sealing contact pressure under temperature changes, pressure variations, vacuum conditions, and dynamic motion.

What types of spring energizers does Handa Spring manufacture?

Handa Spring manufactures various spring energizer configurations, including canted coil spring energizers, helical spring energizers, cantilever V and U springs, full contact springs, and detached leg springs for different sealing requirements.

Can Handa Spring manufacture custom spring energizers?

Yes. Handa Spring supports custom spring energizer manufacturing based on customer drawings, samples, sealing requirements, or application conditions. Custom spring geometry, dimensions, materials, and spring force can be developed according to project requirements.

How do you select materials for spring energizers?

Material selection depends on operating temperature, corrosion conditions, pressure requirements, fatigue performance, and sealing environment. Handa Spring works with high-performance alloys including Elgiloy®, Inconel®, Hastelloy®, MP35N®, and stainless steel alloys.

What industries use spring energizers?

Spring energizers are widely used in semiconductor equipment, LNG and cryogenic systems, hydrogen energy equipment, aerospace applications, medical equipment, and industrial sealing systems where reliable sealing performance is required.

What is a spring energizer?

A spring energizer is a metal spring installed inside a spring-energized seal to provide continuous loading force to the sealing jacket.

Can Handa Spring manufacture custom spring energizers?

Yes. We manufacture custom spring energizers based on drawings, samples or application requirements, including custom geometry, dimensions, materials and spring force.

Can you manufacture from an existing spring sample?

Yes. Existing samples can be evaluated when original drawings are unavailable. The spring geometry, dimensions, material requirements and force characteristics can be reviewed for replacement or new production.

Which spring energizer should I use?

The appropriate configuration depends on sealing motion, pressure, temperature, media, available space, required spring force and expected service life. Canted coil, helical, cantilever and other spring configurations have different load and deflection characteristics.

What materials are available?

Depending on the spring configuration and application, available materials include stainless steels, Elgiloy®, MP35N®, Inconel® alloys, Hastelloy® alloys and other specialty spring materials.

Can you make prototypes before production?

Yes. Prototype production can be used to verify dimensions, spring force, installation and application performance before production quantities are released.

Spring Energizer Manufacturer | Custom Sealing Springs

Engineering

Need a Spring Energizer Made to Your Requirements?

You do not need to start with a finished spring drawing.

Send us any of the following:

Existing spring sample
Spring drawing
Seal drawing
Gland dimensions
Required spring force
Material requirement
Temperature and pressure
Media or gas
Motion and cycle requirements

We can review the available information and discuss the most practical spring configuration and manufacturing approach.

Send Your Drawing Discuss Your Application

Application

Spring Energizers by Application

Spring requirements change with temperature, pressure, motion, media and installation space.

Static Sealing

Spring configurations for sealing systems where the seal remains stationary after installation.

Reciprocating Sealing

Spring energizers for repeated linear motion where spring loading, friction and fatigue need to be considered together.

Rotary Sealing

Spring configurations for rotating shafts and rotary sealing systems where running friction and stable spring loading are important.

Vacuum Sealing

Spring energizers for vacuum systems where continuous sealing force and material compatibility are critical.

Cryogenic Sealing

Spring solutions for low-temperature applications where elastic recovery and material behavior must be evaluated at operating temperature.

High-Temperature Sealing

Spring materials and configurations for elevated-temperature sealing systems.

High-Pressure Sealing

Spring energizers for applications where higher sealing loads and pressure effects must be considered.

Gas Sealing

Spring solutions for leakage-sensitive gas sealing applications, including hydrogen, helium and other industrial gases.

View All Applications →

Material Expertise

Spring Materials for Demanding Sealing Environments

The spring material affects force stability, fatigue life, corrosion resistance, temperature capability and manufacturing behavior.

Handa Spring works with stainless steels, cobalt-based alloys, nickel-based alloys and other spring materials selected according to the application.

Elgiloy®

High fatigue resistance and corrosion resistance for demanding spring applications where long-term elastic stability is important.

Inconel® Alloys

Nickel-based spring materials for elevated-temperature and demanding mechanical environments.

Hastelloy® Alloys

Corrosion-resistant materials for chemically aggressive sealing environments.

MP35N®

High-strength cobalt-nickel alloy for applications requiring a combination of strength, corrosion resistance and fatigue performance.

Stainless Steel

Practical spring materials for a wide range of industrial sealing applications where cost, manufacturability and performance must be balanced.

Material selection should always consider both application performance and manufacturing capability. A premium alloy is not necessarily the best engineering solution if another material can achieve equal sealing reliability with better manufacturability and cost efficiency.

Explore Material Selection Guide →

Precision Manufacturing

From Spring Development to Production

Handa Spring manufactures spring energizers rather than general-purpose industrial springs.

Our production work includes:

Precision spring forming

Heat treatment

Spring force testing

Dimensional inspection

Cutting and welding where required

Cleaning and surface finishing

Prototype production

Small-batch production

Production manufacturing

For custom projects, manufacturing feasibility is considered during spring development rather than after the design is finalized.

Why Handa Spring

Why Work with Handa Spring

Serving customers across North America, Europe and Asia. Thousands of custom spring designs manufactured. Decades of spring manufacturing experience.

Focused on Spring Energizers

Our product focus is spring energizers for spring-energized sealing systems rather than general industrial springs.

Custom Manufacturing

We manufacture according to drawings, samples and application requirements rather than limiting customers to standard spring sizes.

Engineering Communication

Customers can discuss spring geometry, force, material and manufacturing questions directly with our engineering team.

Prototype to Production

The same project can move from initial evaluation and samples to production manufacturing.

Material Experience

We work with stainless steels, Elgiloy®, MP35N®, Inconel®, Hastelloy® and other spring materials.

Manufacturing Experience

Spring force, forming accuracy, heat treatment and dimensional consistency are considered together during production.

Over the years, Handa Spring has supplied custom spring energizers to seal manufacturers, engineering firms, and equipment OEMs across North America, Europe, and Asia. Our objective is to become part of our customers’ engineering process—from prototype development through long-term production.

Custom Spring Energizers for Spring-Energized Seals

Engineering Support from Design to Production

Custom Spring Energizer Solutions Built Around Your Sealing Requirements

Your Long-Term Engineering Partner for Spring Energizer Manufacturing

Engineering & Manufacturing Capability

Spring Energizers Built for Sealing Applications