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China Copper Shielding Wires Factory - High-Performance EMI/RFI Shielding Solutions from Trusted Suppliers

Discover top-quality copper shielding wires from leading China suppliers and manufacturers. Our wires are crafted from annealed Cu-ETP C11000 pure copper (≥99.95% purity), available in both bare and tin-plated finishes. These wires are expertly engineered for effective EMI/RFI shielding of cable inner conductors and grounding extraction. The unique braided structure ensures flexibility and uniform coverage, efficiently blocking external interference while preventing internal signal leakage. Ideal for a variety of applications, including data cables, control cables, high-frequency equipment harnesses, and industries demanding exceptional shielding performance such as military, telecom, and medical electronics. Trust our factory to deliver outstanding copper shielding solutions tailored to your needs.

    Technical Data

    Material: Annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
    Finish: Bare, tin plating
    Carrier Number: 48
    Cross Sectional Area: 15mm² - 40mm²
    Single Wire Diameter: 0.19mm / 0.25mm / 0.30mm
    Packing Modes: In rolls, on spools or wooden drums
    Notes: Please provide the conductor diameter inside before placing an order.

    Product Display

    Model And Meaning

    Copper Shielding Wires 4

    Customization Upon Request

    Part No. Nominal Cross Section (mm²) Measured Cross Section (mm²) Wire Structure
    Strands×Wire Number Per Strand×Layers /Single Wire Diameter (mm)
    Notes
    BGT(X)P-30/15 15 13.56 48×4×1/0.30 Please provide the conductor diameter inside.
    BGT(X)P-25/16 16 16.48 48×7×1/0.25
    BGT(X)P-30/20 20 20.35 48×6×1/0.30
    BGT(X)P-19/25 25 24.48 48×18×1/0.19
    BGT(X)P-25/25 25.91 48×11×1/0.25
    BGT(X)P-30/25 23.74 48×7×1/0.30
    27.13 48×8×1/0.30
    BGT(X)P-30/30 30 30.52 48×9×1/0.30
    BGT(X)P-25/35 35 35.33 48×15×1/0.25
    BGT(X)P-30/40 40 40.69 48×12×1/0.30
    BGT(X)P-25/50 50 49.46 48×21×1/0.25

    Advantages

    High Shielding Effectiveness: Braid coverage up to 85%-95%, effectively blocks electromagnetic interference (EMI) and radio frequency interference (RFI) with excellent attenuation.

    High Conductivity: Cu-ETP C11000 pure copper ensures extremely low grounding impedance for the shield, improving signal integrity.

    Good Flexibility: Braided structure easily bends and wraps, suitable for tight bending radii and dynamic flexing cables without damaging inner insulation.

    Tin-plating Option: Tin-plated copper shielding wires provide better corrosion resistance in humid, salt spray or sulfur-containing environments, extending service life.

    Flexible Customization: Various wire diameters, cross sections and braid densities available. Precise matching based on customer-provided conductor diameter, no MOQ restriction.

    Operating Conditions

    Temperature Range: Bare copper -40°C to +150°C; tin-plated copper -40°C to +150°C (short-term up to +180°C).

    Suitable Environment: Bare copper for dry indoor use; tin-plated for humid, salt spray, mild acid/alkali and industrial polluted areas.

    Installation Requirements: The braid shall evenly cover the inner conductor. Ensure reliable contact with grounding rings or shield clamps when grounding both ends. Bending radius ≥5 times outer diameter of shielding wire recommended.

    Electrical Conditions: For shielding in 100kHz~1GHz frequency range; grounding resistance should be as low as possible (<10mΩ).

    Maintenance

    Visual Inspection: Every 6 months check for broken strands, oxidation/discoloration (bare copper) or tin peeling (tin-plated).

    Cleaning: Blow off dust with dry, oil-free compressed air; for oil contamination, wipe gently with an alcohol swab and dry thoroughly. Do not use acidic or alkaline cleaners.

    Grounding Check: Check tightness of grounding connections at both ends; measure shield-to-ground resistance.

    Avoid Mechanical Damage: Prevent sharp edge scraping or over-stretching during installation and use to avoid reducing shielding coverage.

    Service Life

    Under normal indoor conditions (-40°C to +120°C, no corrosive gases, static installation), the designed service life of copper shielding wires is 15-20 years. Tin-plated copper shielding wires can achieve 12-15 years in humid or mildly corrosive environments.

    Thanks to pure copper material and single-layer braid construction, no replacement is needed within the normal service life of the cable.

    For frequent flexing or vibration applications, it is recommended to check continuity and coverage every 2-3 years.

    After-Sales Service

    Free technical support: engineering consultation, drawings...

    Custom orders: lead time & quality report provided before shipment

    Company Profile & Customization

    Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China copper braid flat, copper braid wire, copper braid wire flat, copper braided wire, copper earth braid manufacturers and suppliers with high quality and low price. Welcome to contact us.

    Frequently Asked Questions

    What material is used in the copper shielding wires?
    They are manufactured using high-grade annealed Cu-ETP wires (C11000) with a pure copper content of ≥ 99.95%.
    What finish options are available for these shielding wires?
    We offer both bare copper and tin-plated finishes depending on your environmental requirements.
    What level of shielding effectiveness is provided?
    The braid coverage reaches up to 85%-95%, effectively blocking EMI and RFI in the 100kHz to 1GHz frequency range.
    What information should be provided before placing an order?
    Please provide the exact inside conductor diameter to ensure precise matching and optimal shield performance.
    What is the expected service life of the shielding wire?
    Under normal indoor conditions, the designed service life is 15-20 years for bare copper and 12-15 years for tin-plated copper in humid or mildly corrosive settings.
    What packaging options are supported?
    Shielding wires are supplied securely packed in rolls, on spools, or mounted on wooden drums according to specification.