Beryllium Copper Stamping Parts Wholesale

Beryllium Copper Stamping Parts

-- Steady & Reliable Manufacturer --

Yuyao Hongli Optoelectronics Co., Ltd. is a premier OEM manufacturer of Beryllium Copper Stamping Parts, delivering high-performance spring contacts, switch blades, shielding gaskets, and micro-connectors. Operating out of our 5,000-square-meter facility in Yuyao, Zhejiang, we utilize high-speed progressive presses, vacuum heat-treatment furnaces, and precision optical inspection systems. We process premium beryllium copper alloys, including C17200 (Alloy 25) and C17000, known for their exceptional tensile strength, fatigue resistance, superior electrical conductivity, and non-magnetic properties. Partner with Yuyao Hongli for age-hardening heat treatment, selective precious metal plating, and high-precision OEM production.

MANUFACTURING CAPABILITIES

Equipment and process capabilities

From mold design to batch stamping, we cover production needs of different tonnages and precision levels.

  • 01

    High-Precision Micro Spring Stamping

    Using ultra-high-speed progressive dies, we form intricate beryllium copper spring clips and contact fingers with exact spring-back control and minimal burr formation.

  • 02

    In-House Age-Hardening Heat Treatment

    We perform precise age-hardening (precipitation hardening) in controlled atmosphere vacuum furnaces to elevate stamped parts to maximum tensile strength and fatigue life.

  • 03

    Reel-to-Reel High-Speed Production

    Our automated high-speed stamping presses produce mass quantities of terminal contacts on continuous carrier reels, perfectly suited for automated insertion lines.

  • 04

    Selective Surface Plating

    Integrated plating options apply targeted gold, silver, or tin coatings to critical contact points, maximizing conductivity while reducing overall precious metal usage.

SPEC · Overview of Key Equipment Parameters

Equipment TypeTonnage / SpecificationMachinable MaterialTypical Processing Thickness
High-Speed Precision Press25T - 80T High-Speed Stamping PressC17200, C17000, C17500 Beryllium Copper0.05mm - 1.2mm Bronze Strip
Vacuum Heat-Treatment Furnace300掳C - 600掳C Controlled AtmosphereStamped Beryllium Copper PartsAge-Hardening (TF00 / TH04 Temper)
Continuous Reel-to-Reel Plating LineMulti-Station Selective ElectroplatingTerminal Strips & Spring ContactsSelective Gold, Silver, Tin Plating
360-Degree Optical Sorting MachineHigh-Speed Vision Inspection UnitStamped Contacts & Pins100% Automated Dimensional Sorting
QUALITY CONTROL

Full-process quality control system

From incoming material inspection to full outgoing inspection, key processes are equipped with inspection points to ensure batch consistency.

Spring Force & Mechanical Fatigue Testing

Ensuring lifetime elastic recovery and optimal contact pressure for high-cycle applications.

  • Micro-force gauge measurement for contact insertion, retention, and extraction forces.
  • High-frequency mechanical deflection cycling (up to 500,000+ cycles).
  • Hardness verification (Rockwell C / Vickers) before and after precipitation hardening.

Micro-Dimensional & Optical Profile Inspection

Verifying strict tolerances on ultra-small electronic contacts and shielding fingers.

  • 2D optical measuring projectors checking critical contact gap and pitch alignment.
  • Microscopic burr height inspection (maintaining burrs under 0.01mm).
  • 3D CMM coordinate verification for complex formed geometries.

Electrical Conductivity & Plating Thickness Audit

Validating low electrical resistance and coating durability under harsh conditions.

  • Four-point micro-ohmmeter contact resistance measurement.
  • XRF coating thickness measurement for gold, silver, and nickel underplates.
  • Salt spray corrosion testing per ASTM B117 for plated components.
SURFACE FINISHING

Surface treatment process

Depending on the usage environment and appearance requirements of the parts, we offer anti-corrosion, wear-resistant, or decorative surface treatment solutions.

Finishing ProcessApplicable MaterialPrimary FunctionTypical Application
Selective Gold PlatingC17200 Beryllium CopperProvides lowest contact resistance, zero oxidation, and exceptional signal fidelityHigh-frequency telecom connectors, micro-switches, aerospace contacts
Silver ElectroplatingC17200, C17000 Beryllium CopperDelivers high electrical and thermal conductivity for heavy current switchingPower relay blades, high-amperage spring contacts, circuit breakers
Matte / Bright Tin PlatingC17200 Beryllium CopperEnhances solderability and protects against atmospheric tarnishPCB surface-mount clip terminals, automotive fuse contacts, sensor terminals
Nickel Barrier UnderplatingAll Beryllium Copper AlloysPrevents copper diffusion into top precious metal layers and increases wear resistanceHigh-cycle electrical connectors, battery contacts, spring clips
Note: The above is a standard process list. Specific film thickness, color, and salt spray resistance rating can be customized according to customer drawings.
APPLICATIONS

Main application areas

Our products are widely used in industries that require high structural strength and precision consistency.

Telecom, 5G & RF Shielding

High-elasticity EMI shielding fingers and RF contacts for high-frequency telecommunications.

  • EMI/RFI shielding finger strips and contact gaskets
  • 5G base station board-to-board spring contacts
  • Coaxial connector contact pins and sockets

Automotive & Aerospace Electronics

High-reliability spring contacts built to withstand extreme vibration and operating temperatures.

  • Automotive sensor spring contacts and switch blades
  • Avionics connector sockets and micro-relay terminals
  • EV battery management system (BMS) spring clips

Medical & Precision Testing Equipment

Non-magnetic, high-fatigue precision spring components for sensitive diagnostic devices.

  • Medical device probe contacts and battery springs
  • Semiconductor test socket spring pins (pogo pin components)
  • Precision snap-action switch blades
PRODUCTION / FACTORY ADVANTAGES

Factory production advantages

With its own factory and equipment, the company ensures stable delivery times and controllable costs.

20+ Years of Micro-Stamping Expertise

Yuyao Hongli brings extensive technical knowledge in stamping ultra-thin, high-elasticity beryllium copper alloys.

Integrated Vacuum Heat Treatment & Plating

Our facility combines progressive die stamping, in-house age-hardening, and selective plating under strict quality controls.

100% Optical Sorting & Quality Assurance

Automated vision inspection machines verify 100% of critical dimensions and contact spring gaps before packaging.

CUSTOM MANUFACTURING PROCESS

Customized production process

From receiving drawings to batch delivery, standardized processes ensure traceability at every stage.

  • 1. Print Engineering & Spring Mechanics DFM

    Engineers analyze spring deflection, contact force, and grain orientation to select the ideal beryllium copper alloy and temper.

  • 2. Micro-Progressive Tooling Fabrication

    In-house toolmakers fabricate ultra-precision progressive dies utilizing micro-grain tungsten carbide inserts.

  • 3. Trial Stamping, Heat-Treat & FAI Approval

    Sample stampings undergo trial age-hardening, spring force testing, optical inspection, and customer sign-off.

  • 4. Mass Stamping, Vacuum Hardening & Plating

    High-speed presses stamp coil stock, followed by atmospheric vacuum heat-treatment and selective precious metal plating.

  • 5. Automated Optical Sorting & Reel Packaging

    Parts pass 100% vision sorting, are wound onto interleaf-protected reels or tape-and-reel carriers, and sealed for export.

FAQ

Frequently Asked Questions

Here are some questions that clients often ask before cooperating with us.

Why choose Beryllium Copper over Phosphor Bronze for spring contacts?

Beryllium Copper offers significantly higher yield strength, superior fatigue endurance, higher electrical conductivity, and better resistance to stress relaxation at elevated temperatures.

Do you perform age-hardening heat treatment in-house?

Yes. We conduct controlled vacuum furnace heat treatment (age-hardening) to bring soft-stamped parts to their full mechanical strength (up to 40 HRC).

Can you supply stamped contacts on continuous reels?

Yes, we offer continuous reel-to-reel stamping and selective plating, perfectly formatted for automated pick-and-place or crimping machinery.

What thinnest gauge of Beryllium Copper can you process?

Our high-speed precision presses can stamp ultra-thin spring alloys starting from 0.05mm thickness.

About Us
Yuyao Hongli Optoelectronics Co., Ltd.
Yuyao Hongli Optoelectronics Co., Ltd.
Yuyao Hongli Optoelectronics Co., Ltd. is a comprehensive enterprise with over 20 years of experience in the manufacturing industry. Located in the Yangming Science and Technology Industrial Park of Yuyao, Zhejiang Province, it enjoys convenient transportation and a solid industrial foundation. As a famous China Beryllium Copper Stamping Parts Suppliers and Beryllium Copper Stamping Parts Factory, founded in 2000, formerly known as Yuyao Hongli Optoelectronics Educational Instruments Co., Ltd., the company is wholly owned by a natural person, with Xie Gang as the legal representative. Its registered capital of 500,000 yuan has been fully paid up, and it has maintained its continued development through stable operations.
Relying on a 5,000-square-meter modern factory and multiple stamping workshops, the company has built a diversified product system. Its core businesses cover the manufacturing, processing and wholesale and retail of educational instruments, optical instruments, household electric heaters, small household appliances, auto parts, hardware and plastic products, etc. At the same time, it operates and acts as an agent for the import and export trade of goods and technologies, and its products are sold at home and abroad.
The company brings together industry management elites and senior engineers to form a mature R&D and management team. Adhering to the business philosophy of "integrity and pragmatism," it is committed to providing customers with high-quality products and comprehensive after-sales service. Leveraging its diversified portfolio, certification guarantees, and import/export advantages, the company actively expands cooperation both domestically and internationally, and is willing to establish long-term and stable trade partnerships with partners from all sectors, continuously striving forward in the wave of intelligent and high-end development in the manufacturing industry.
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