Punching Metal Stamping Copper Contact Parts
In fields such as electronics and electrical engineering, new energy, and automotive manufacturing, high-quality copper connection and conduction components are core elements ensuring stable operation of equipment.Among them, Punching Metal Stamping Copper Contact Parts, as the core product category, have become the preferred accessories for many high-end equipment manufacturers due to their excellent electrical conductivity and structural stability. All products are made of high-purity copper through precision stamping process, which can meet the strict requirements of different industries for precision, strength, and electrical performance of copper components, providing reliable support for the efficient operation of equipment.
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Product Introduction
Products Description
Our Punching Metal Stamping Copper Contact Parts are made of high-quality materials such as high-purity red copper and brass. Relying on advanced stamping technology and strict quality control, we have created a series of products with diverse forms and stable performance. Precision Copper Stamping Parts adopt micro-level precision stamping process, with product dimensional tolerance controlled within ±0.01mm and surface roughness Ra ≤ 0.8μm, ensuring precise matching with other components during assembly and reducing equipment failures caused by dimensional deviations. Copper Part Stamping covers various structures such as flat plates and special-shaped parts, and can be customized into products with different hole diameters, thicknesses, and shapes according to customer needs. From the simple circular sheets to complex multi-step parts, efficient mass production can be achieved.

Product Features
- High-precision Processing: The entire series of copper stamping products are produced using CNC stamping equipment and precision molds. The dimensional accuracy of them can reach the IT5 grade standard, and the geometric tolerances (such as coaxiality and parallelism) of key parts are controlled within 0.005mm, meeting the strict precision requirements of precision instruments and high-end electronic equipment for components.
- Excellent Material Performance: The copper purity is ≥ 99.9%, and their electrical conductivity is much higher than that of ordinary copper alloys. They also have good corrosion resistance. When used for a long time in an environment with humidity ≤ 95% and temperature -40℃ ~ 120℃, there is no obvious oxidation or corrosion on the surface. Copper Spring Electrical Parts improve the elastic limit of copper by 20% through material heat treatment process, ensuring that the spring is not prone to permanent deformation during long-term compression and tension cycles.
- Stable Electrical Performance: All copper stamping electrical components have undergone strict electrical performance tests. The contact resistance is ≤ 8mΩ, and the contact resistance of Copper Spring Electrical Parts is ≤ 10mΩ. After 1000 insertion and extraction or on-off tests, the resistance change rate is ≤ 5%, ensuring the stability of electrical connections and avoiding equipment failures caused by poor contact.
- Diversified Customization Capability: According to the customer's drawings or sample requirements, Copper Part Stamping of different specifications and structures can be customized, including special hole diameters, special-shaped contours, and surface coatings (such as silver plating and gold plating). The mold development cycle is short (the mold development cycle for conventional products is ≤ 15 days), and small-batch trial production can be delivered in as fast as 3 days, meeting the customer's needs for rapid product iteration.
- Strict Quality Control: A full-process quality inspection system has been established from raw material procurement to finished product delivery. Raw materials need to provide material certificates and undergo spectral analysis testing to ensure that the composition meets the requirements. During the stamping process, online visual inspection equipment is used to conduct 100% inspection of product dimensions and appearance, and unqualified products with dimensional deviations, surface scratches, and deformation are eliminated. Finished products also need to undergo reliability tests such as salt spray test (neutral salt spray test ≥ 48 hours) and high-temperature aging test (aging at 120℃ for 72 hours) to ensure stable product quality.

Production Process
Raw Material Procurement and Inspection
We pick national standard-compliant high-purity copper, require suppliers' certificates/SGS reports, test composition via spectrometer, and check thickness/hardness to reject unqualified materials.
01
Mold Design and Manufacturing
Engineers design molds with CAD/CAM for 3D modeling, make them via high-precision CNC milling/EDM (cavity tolerance ≤0.003mm), and trial-mold to adjust parameters for qualified product size/appearance.
02
Stamping Processing
Feed qualified copper coils/sheets into CNC presses for blanking/punching/bending/stretching, use auto-feeding (±0.005mm accuracy), and real-time visual inspection to stop machines and avoid batch defects if unqualified.
03
Subsequent Processing
Do surface treatment (silver plating ≥5μm, gold plating ≥0.5μm, passivation; cross-cut test ≥4B), heat-treat copper springs (300-400℃, 1-2h) to adjust elasticity, and shape for flatness/perpendicularity.
04
Finished Product Inspection and Packaging
Test finished products' dimensions (coordinate measuring machine), electrical performance, and reliability; package qualified ones anti-statically, and label specs/quantity/batch numbers for traceability.
05

Application Scenarios
- Electronics and Electrical Field: Precision Copper Stamping Parts act as connectors and sensors in smartphones and laptops, with high precision ensuring accurate electronic component connections. The Parts, boasting excellent conductivity, fit signal transmission in routers/switches to cut signal attenuation. Copper Spring Electrical Parts work as contact springs in relays/contactors, enabling electrical connection on-off and buffering for stable equipment operation.
- New Energy Field: In new energy vehicle BMS, Copper Sheet Metal Fabrication serves as battery cell connectors-high conductivity and low contact resistance reduce current transmission heat loss, safeguarding battery safety. They also work as conductive components in photovoltaic inverters; their good corrosion resistance extends service life in outdoor high-temperature/humidity environments.
- Automotive Manufacturing Field: In car in-vehicle navigation and AC systems, Precision Copper Stamping Parts are circuit board conductive terminals, with dimensional accuracy ensuring precise welding. Copper Part Stamping fits electrical connections in door locks and window lifts, maintaining stable conductivity and strength at -40℃~80℃. Copper Spring Electrical Parts are in airbag triggers, with dual elastic/conductive guarantees for timely activation in emergencies.
- Industrial Control Field: In PLCs and frequency converters, Red Copper Stamping Parts are power module conductive busbars-large cross-sections meet high-current needs. Precision Copper Stamping Parts act as encoder/servo motor signal feedback components, high precision ensuring signal accuracy, and they are industrial relay contacts, maintaining stable performance in high-frequency on-off to avoid equipment shutdown.
- Medical Equipment Field: For high-precision/reliable medical devices (e.g., electrocardiographs), Precision Copper Stamping Parts are internal conductive connectors, with ≤0.005mm dimensional accuracy ensuring accurate signal collection. Copper Spring Electrical Parts are key contacts in medical equipment, retaining stable elasticity and conductivity during frequent pressing, guaranteeing normal device operation.

Contact us
If you are looking for a supplier of Punching Metal Stamping Copper Contact Parts with stable performance and reliable quality, please feel free to contact us. We will provide you with detailed product samples, technical parameter manuals and third-party test reports, and arrange professional engineers to connect with you to provide customized solutions according to your specific needs. Choose us, let high-quality copper stamping components protect your products, and jointly improve product competitiveness to achieve win-win cooperation!
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