Custom Manufacturing of Spring Energized Seals - Handa specializes in custom manufacturing of spring-energized seals, primarily producing slant coil (C-springs), V-springs, U-springs, and H-springs (O-rings). We support mold customization based on provided drawings or samples, ensuring quality assurance. Available materials include high-strength alloys such as Elgiloy, stainless steel, 310S, Inconel X-750, Inconel 718, and Hastelloy C-276.

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Handa Spring

Seal Springs For Extreme Conditions

Our Seal Springs provide superior sealing performance in high-pressure, high-temperature, and corrosive environments, ensuring reliability in critical applications.

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Global

Service Capability

Aerospace & Oil & Gas Sealing Solutions. ISO 9001 Certified Custom Spring-Energized Seals & Universal Sealing Systems — Proven in 50+ Countries.

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Leading Solution for all Sealing Industry

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All Spring Energized Custom Server

Welcome
to our Factory

Handa Spring(ISO9001:2015 Certified Enterprise) is a specialized OEM/ODM spring manufacturer with over a decade of precision-spring expertise. We deliver custom-engineered spring-energized seal solutions for critical applications in medical, aerospace, oil & gas and other demanding industries. Our advanced CNC production and QA processes ensure every component meets tight tolerances and high reliability.

About Handa

Why Choose Our Spring Energized

Ultra-precision fabrication

Helical springs with outer diameters as small as 0.035″ (0.89 mm) and tolerances reaching 0.00078″ (±0.02 mm). V-springs achieve 0.01 mm clearance control. Canted Coil Springs with minimum ID of 2 mm and maximum ID of 1000 mm.

Alloy Options

We offer Elgiloy, Inconel 625/718/X-750, Hastelloy C-276/C-22, and more—ideal for high-temp, corrosive, and ultra-clean sealing environments.

No MOQ & Direct Pricing

No minimum order quantity required — we handle all order sizes. As a factory, we offer lower prices and smoother communication.

“Handa Spring has obtained ISO 9001:2015 certification, ensuring the quality of all its products and services. Our products are well-received in over 30 countries worldwide, and we are the industry leader in spring-energized seals.”

Han Xiao– CEO & Founder

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Our Products

High-Performance Spring Energized Seals

Helical Spring

Helical wound spring energizers for cryogenic to high-temp, corrosive and high-pressure seals. Custom alloys (Inconel, Elgiloy, Hastelloy) — request quote.

Canted Coil Springs

Precision Canted Coil Springs for sealing, EMI shielding, and conductivity and Mechanical Connecting. Custom-made by Handa Spring for aerospace, medical, and energy industries.

Garter Springs

Handa Seal’s Oil Seal Springs(Garter Springs) deliver high-speed, high-load, and reliable sealing for industrial, automotive, marine, and power-gen OEMs. Custom sizes, coatings & CAD available.

Cantilever V Spring

Cantilever V Springs provide high deflection and stable load for dynamic sealing. Custom-built by Handa Spring for harsh environments and OEM seals.

Cantilever U Spring

Medium-force Cantilever U Springs for rotary and piston sealing. Handa Spring offers precision customization and corrosion-resistant alloys.

Full Contact Springs

Handa Full Contact (RACO) springs provide continuous 360° contact and high radial load for cryogenic, vacuum and light-gas sealing. Heavy-duty, custom sizes; welded installation.

About handa

Handa: Custom Universal Sealing

Springs Manufacturer

We work with the highest quality alloys and the most knowledgeable spring manufacturing experts in the world. Working with us, you should expect to avoid high minimums, long lead times, and expensive tooling costs while enjoying our extensive variety of optional manufacturing services.

Handa operates advanced CNC systems, precision CAI instruments, and proven manufacturing technologies to ensure batch-to-batch consistency, meeting stringent quality and rapid delivery requirements. Our globally distributed products are internationally acclaimed.

Handa: Custom Universal Sealing Springs Manufacturer - Handa Seal

RICH EXPERIENCE

Over 10 years experiences in the production of spring-energized seal

FAST RESPONSE AND EXCELLENT SERVICE

We source materials exclusively from certified suppliers with validated compliance and proven reliability.

TECHNOLOGY AND INNOVATION

Advanced processing technology and modernized inspection facilities.

Company

Competitive Edge

Free Mold Opening

For custom springs (e.g., V-Cantilever, U-shaped) requiring mold production, the mold cost will be refunded once the total order quantity reaches the agreed‑upon amount, reducing your processing expenses.

24/7 After-Sales Support

Our service team is available 24 hours a day, 7 days a week. No long waits — we’re ready to communicate whenever you need.

Customization Service

We specialize in producing custom spring-energized seals. Mold customization based on drawings or samples is supported, with assured quality. Materials include high-strength alloys such as Elgiloy, stainless steel, Inconel X-750, Inconel 718, and 276.