Progressive Die Stamping Parts Wholesale

Progressive Die Stamping Parts

-- Steady & Reliable Manufacturer --

Yuyao Hongli Optoelectronics Co., Ltd. is an industry-leading OEM manufacturer specializing in Progressive Die Stamping Parts, delivering complex, high-precision metal components for automotive, electronics, medical, and industrial applications. Operating out of our modern 5,000-square-meter facility in Yuyao, Zhejiang, we house high-speed automated presses ranging from 25T to 200T, supported by a fully equipped in-house toolroom. We process cold-rolled steel, stainless steel, brass, copper, aluminum, and specialty spring alloys. Progressive die stamping integrates punching, blanking, bending, coining, and tapping into a single continuous process鈥攄elivering maximum cost efficiency, tight tolerances (卤0.01mm), and high-volume scalability.

MANUFACTURING CAPABILITIES

Equipment and process capabilities

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

  • 01

    Multi-Station High-Speed Continuous Stamping

    Our progressive dies execute multiple operations鈥攊ncluding piercing, blanking, forming, and coining鈥攁t speeds up to 600 strokes per minute from continuous metal coils.

  • 02

    Integrated In-Die Tapping & Threading

    Servo-driven in-die tapping units cut precise internal threads directly within the progressive die, eliminating secondary machining and reducing unit cost.

  • 03

    Automated In-Die Fastener Insertion

    Integrated automated feeding systems insert rivets, studs, and PEM nuts during the press stroke with 100% position monitoring and high torque resistance.

  • 04

    Complex 3D Bending & Coining

    Progressive stations perform multi-axis bending, embossed stiffening ribs, and micro-coining on intricate structural clips and terminal components.

SPEC · Overview of Key Equipment Parameters

Equipment TypeTonnage / SpecificationMachinable MaterialTypical Processing Thickness
High-Speed Precision Press25T - 80T High-Speed StampingCopper, Brass, Stainless, Bronze Strips0.08mm - 1.5mm Continuous Strip
Heavy Progressive Stamping Press110T - 200T Mechanical PressCarbon Steel, Stainless, Aluminum Coils0.5mm - 4.0mm Heavy Strip
In-House CNC Die ToolroomWire EDM, CNC Machining Centers, Surface GrindersSKD11, D2, Tungsten Carbide Die SteelsTool Fabrication & Maintenance
Automated Vision Sorting SystemHigh-Speed Glass-Disk Optical SorterProgressive Stamped Terminals & Clips100% 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.

In-Line Optical & Sensor Quality Monitoring

Utilizing die-protection sensors and vision systems to prevent tool damage and part defects.

  • In-die optical pitch sensors ensuring zero feed error during high-speed press runs.
  • 100% in-die thread detection for tapped holes using proximity sensors.
  • Real-time press tonnage monitoring to detect die wear or material thickness variation.

3D CMM & Optical Profile Measurement

Checking complex multi-bend geometries against strict customer CAD tolerances.

  • 3D Coordinate Measuring Machine (CMM) checking hole patterns, form angles, and contours.
  • 2D high-resolution optical profile projectors for rapid lot sampling.
  • Burr height measurement maintained under 0.015mm optical limits.

Material Composition & Process Validation

Verifying raw coil properties and mechanical strength prior to progressive stamping.

  • XRF Spectrometer (PMI) analysis for raw material composition verification.
  • Tensile, yield, and micro-Vickers hardness testing.
  • Salt spray testing (ASTM B117) and plating thickness validation.
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
Continuous Reel-to-Reel ElectroplatingBrass, Copper, Phosphor Bronze, StainlessApplies selective tin, gold, silver, or nickel plating across continuous terminal stripsAutomotive connectors, electrical contacts, PCB terminals
In-Line Vibratory DeburringCarbon Steel, Stainless Steel, AluminumRemoves minor shear burrs and smooths edges for safe handlingInternal structural brackets, clips, mounting plates
Chemical Passivation300 & 400 Series Stainless SteelRestores passive corrosion-resistant oxide layer by removing surface iron contaminantsMedical components, sensor housings, automotive clips
Electrophoretic Coating (E-Coating) / Powder CoatCarbon Steel, Heavy Alloy SheetDelivers durable, uniform, high-corrosion-resistant primer or finish coatingAutomotive chassis brackets, industrial machinery hardware
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.

Automotive Wire Harness & Electrical Systems

High-volume progressive stampings engineered for automotive electrical distribution.

  • Automotive crimp terminals, spade connectors, and ring lugs
  • Fuse box busbars and relay contact spring plates
  • ECU sensor shield covers and grounding clips

Electronics, Telecom & Smart Home

Micro-precision progressive stampings for high-density electronic assemblies.

  • PCB surface-mount battery contacts and shield cans
  • 5G telecom antenna spring clips and board connectors
  • Smart meter current shunts and switch contacts

Industrial Machinery & Appliances

High-strength progressive stampings built for heavy mechanical loads and frequent cycling.

  • Appliance chassis mounting brackets and hinge plates
  • HVAC control board clips and motor brackets
  • Industrial circuit breaker current paths and spring levers
PRODUCTION / FACTORY ADVANTAGES

Factory production advantages

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

Complete In-House Die Design & Build

We design, machine, and maintain all progressive stamping dies in-house, ensuring complete quality control and rapid tooling iteration.

High Volume Cost Reduction

Progressive die stamping combines multiple secondary steps into one press stroke, drastically cutting unit costs and lead times.

Extreme Precision & Repeatability

Utilizing high-grade SKD11/Carbide die inserts and servo presses, we achieve tight tolerances down to 卤0.01mm across millions of parts.

CUSTOM MANUFACTURING PROCESS

Customized production process

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

  • 1. DFM Review & Strip Layout Engineering

    Engineers analyze 3D models, calculate material utilization, simulate forming stress, and design the optimal multi-station strip layout.

  • 2. In-House Progressive Tool Fabrication

    Our toolroom uses high-precision CNC centers, wire EDM, and surface grinders to machine progressive die components from SKD11 or carbide.

  • 3. Press Tryout & First Article Inspection (FAI)

    Initial die tryouts run on production presses; sample parts undergo 100% CMM dimensional audits and capability studies (Cp/Cpk).

  • 4. High-Speed Mass Production

    Automated feeders move coil stock through the progressive die continuously, monitored by in-die sensors and vision systems.

  • 5. Secondary Finishing & Reel/Bulk Packaging

    Parts undergo deburring, plating, or heat treatment, followed by automated optical sorting and reel or bulk export packaging.

FAQ

Frequently Asked Questions

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

What are the main advantages of Progressive Die Stamping?

Progressive die stamping allows high-speed continuous production, combines multiple operations (punching, forming, tapping) into one tool, reduces labor costs, and maintains tight tolerances across high volumes.

What materials can be processed with progressive die stamping?

We process cold/hot-rolled steel, stainless steel, brass, copper, phosphor bronze, beryllium copper, aluminum, and galvanized steel coils.

How long does it take to design and build a progressive die?

Typical progressive die development takes 30 to 45 days, depending on part complexity and the number of stations required.

What tolerances can Yuyao Hongli maintain with progressive dies?

Using high-precision carbide tooling inserts and servo presses, we regularly maintain tight dimensional tolerances down to 卤0.01mm.

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 Progressive Die Stamping Parts Suppliers and Progressive Die 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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