Catalog
Leave Your Message
Products Categories
Featured Products

China Electric Brush Wires with Spot-Welded Ends - High-Quality Conductors from Reliable Suppliers and Factory

Introducing our high-performance electric brush wires, expertly crafted by a leading China factory renowned for quality. These wires feature BGTS/BGTSR highly flexible stranded copper conductors combined with precision spot-welded ends, ensuring optimal performance in demanding applications. Made from annealed Cu-ETP copper with single wire diameters ranging from 0.05 mm to 0.12 mm, they adhere to the GB/T12970.4-2009 standards. The capacitor-discharge welded ends create strong, burr-free terminals, removing the necessity for separate lugs, soldering, or crimping.

Available in both bare and tin-plated finishes, these wires exhibit exceptional conductivity, resistance to bending fatigue, and impressive structural stability. The ductile welded zone remains free from embrittlement, making them perfect for brush leads, rotor connections in micro motors, and high-frequency electronic devices where reliable, vibration-proof terminations are critical. As a preferred choice among suppliers, our electric brush wires promise durability and performance you can rely on.

In addition, our insulated rigid aluminum busbars are designed with engineering practicality in mind, offering simple installation, high fitting accuracy, and long-term maintenance-free operation. This significantly enhances on-site construction efficiency. Our products can be tailored to customer specifications through bending, punching, grooving, and cutting for a one-step forming process that allows for straightforward on-site installation without the need for secondary processing.

With standardized structural sizes, these busbars ensure a perfect fit with equipment mounting holes and assembly positions, effectively reducing construction and wiring cycles. The rigid fixed structure facilitates easy positioning and fixing, minimizing the tedious work often associated with traditional flexible wiring solutions. For maintenance needs, the full-covered anti-aging insulation layer and corrosion-resistant metal base guarantee long-term stable performance, eliminating the need for frequent inspections and replacements.

Our smooth insulation surface resists dust and dirt accumulation, further reducing the risk of insulation leakage. For engineering installation teams and equipment manufacturers, the efficient installation process and maintenance-free features save labor costs and reduce ongoing operational expenses, yielding substantial economic benefits. Choose our products for reliable performance and ease of use from a trusted supplier in the industry.

    Technical Data

    Material: annealed Cu-ETP wires, C11000, copper content ≥ 99.95%

    Finish: bare, tin plating

    Packing Modes: in rolls, on spools or wooden drums

    Product Display

    Type And Specification

    Type Single Wire Diameter Elongation, not less than
    BGTS 0.10mm (AWG38 ), 0.12mm 18%
    BGTSX 0.10mm (AWG38 ), 0.12mm 15%
    BGTSR 0.05mm (AWG44), 0.07mm(AWG41) 15%

    Model And Meaning

    Electric Brush Wires with Spot-Welded Ends Model Meaning Diagram

    Customization Upon Request

    Single Wire Diameter: 0.12mm
    Part No. Nominal Cross Section (mm²) Calculating Cross Section (mm²) Structure Calculating Outside diameter (mm) Max. DC Resistance at 20℃ (Ω/km) Calculating weight (kg/km)
    Total Wire Number Strands×Wire Number Per Strand/Single Wire Diameter (mm) BGTS BGTSX
    BGTS(X)-6.3 6.3 6.24 552 12×46/0.12 4.3 2.94 3.07 59.1
    BGTS(X)-8 8.0 7.87 696 12×58/0.12 4.8 2.33 2.44 74.9
    BGTS(X)-10 10 10.04 888 12×74/0.12 5.3 1.83 1.91 95.1
    BGTS(X)-12.5 12.5 12.46 1102 19×58/0.12 5.9 1.48 1.55 118.5
    BGTS(X)-16 16 15.90 1406 19×74/0.12 6.7 1.16 1.21 151.2
    Single Wire Diameter: 0.10mm (AWG38)
    Part No. Nominal Cross Section (mm²) Calculating Cross Section (mm²) Structure Calculating Outside diameter (mm) Max. DC Resistance at 20℃ (Ω/km) Calculating weight (kg/km)
    Total Wire Number Strands×Wire Number Per Strand/Single Wire Diameter (mm) BGTS BGTSX
    BGTS(X)-1 1 0.99 126 7×18/0.10 1.4 18.5 19.3 9.5
    BGTS(X)-1.4 1.4 1.37 175 7×25/0.10 1.7 13.2 13.7 12.5
    BGTS(X)-1.5 1.5 1.48 189 7×27/0.10 1.8 11.9 12.7 14.0
    BGTS(X)-1.8 1.8 1.75 224 7×32/0.10 2.0 10.2 10.7 16.5
    BGTS(X)-2 2 1.98 252 7×36/0.10 2.2 9.23 9.65 19.5
    BGTS(X)-2.5 2.5 2.53 322 7×46/0.10 2.4 7.39 7.72 25.0
    BGTS(X)-3 3 2.97 378 7×54/0.10 2.7 6.16 6.43 29.5
    BGTS(X)-4 4 3.96 504 7×72/0.10 2.8 4.62 4.83 38.0
    BGTS(X)-5 5 4.94 630 7×90/0.12 3.2 3.69 3.86 47.6
    BGTS(X)-6 6 5.93 756 12×63/0.10 3.7 3.01 3.23 58.5
    BGTS(X)-6.3 6.3 6.24 552 12×46/0.12 4.3 2.94 3.07 59.1
    BGTS(X)-8 8 7.91 1008 12×84/0.10 4.2 2.33 2.44 75.5
    BGTS(X)-9 9 8.95 1140 12×95/0.10 4.4 2.05 2.15 87.0
    BGTS(X)-10 10 8.89 1260 12×105/0.10 4.8 1.83 1.91 97.2
    BGTS(X)-12 12 11.97 1524 12×127/0.10 5.4 1.50 1.62 117.0
    BGTS(X)-16 16 15.90 2025 15×135/0.10 6.2 1.16 1.21 156.0
    Round Type: Single Wire Diameter: 0.07mm (AWG41)
    Part No. Nominal Cross Section (mm²) Calculating Cross Section (mm²) Structure Calculating Outside diameter (mm) Max. DC Resistance at 20℃ (Ω/km) Calculating weight (kg/km)
    Total Wire Number Strands×Wire Number Per Strand/Single Wire Diameter (mm) BGTSR BGTSRX
    BGTSR(X)-2 2 1.93 504 7×72/0.07 2.2 9.16 9.65 18.3
    1.93 504 7×3×24/0.07 2.2 9.16 9.65 18.6
    BGTSR(X)-3.5 3.5 3.47 903 7×3×43/0.07 2.7 5.35 5.51 33.3
    BGTSR(X)-4 4 4.01 1044 12×3×29/0.07 2.9 4.59 4.83 39.0
    4.03 1050 7×3×50/0.07 3.0 4.59 4.83 39.0
    BGTSR(X)-5 5 4.84 1260 7×3×60/0.07 3.2 3.71 3.86 46.5
    5.02 1305 15×3×29/0.07 3.2 3.71 3.86 48.5
    BGTSR(X)-6 6 5.65 1470 7×3×70/0.07 3.6 2.93 3.21 54.2
    BGTSR(X)-8 8 7.75 2016 12×3×56/0.07 4.2 2.33 2.44 73.0
    BGTSR(X)-10 10 9.69 2520 12×3×70/0.07 4.8 1.83 1.91 90.5
    BGTSR(X)-12 12 11.90 3096 12×3×86/0.07 5.4 1.50 1.60 112.2
    BGTSR(X)-16 16 15.34 3990 19×3×70/0.07 6.2 1.16 1.21 150.5
    Round Type: Single Wire Diameter: 0.05mm (AWG 44)
    Part No. Nominal Cross Section (mm²) Calculating Cross Section (mm²) Structure Calculating Outside diameter (mm) Max. DC Resistance at 20℃ (Ω/km) Calculating weight (kg/km)
    Total Wire Number Strands×Wire Number Per Strand/Single Wire Diameter (mm) BGTSR BGTSRX
    BGTSR(X)-1 1 0.99 504 7×3×24/0.05 1.4 18.5 19.3 9.3
    BGTSR(X)-1.3 1.3 1.32 672 7×3×32/0.05 1.7 14.2 14.8 12.5
    BGTSR(X)-1.5 1.5 1.48 756 7×3×36/0.05 1.8 11.9 12.7 14.0
    BGTSR(X)-1.8 1.8 1.81 924 7×3×44/0.05 2.0 10.2 10.7 17.5
    BGTSR(X)-2 2 1.98 1008 7×3×48/0.05 2.2 9.16 9.65 19.0
    BGTSR(X)-2.5 2.5 2.30 1176 7×3×56/0.05 2.3 7.39 7.72 22.5
    BGTSR(X)-3 3 2.95 1505 7×5×43/0.05 2.6 6.16 6.43 29.0
    BGTSR(X)-4 4 3.95 2016 12×3×56/0.05 2.7 4.59 4.83 39.0
    BGTSR(X)-5 5 4.94 2520 15×3×56/0.05 3.2 3.71 3.86 48.5
    BGTSR(X)-6 6 6.26 3192 19×3×56/0.05 3.6 2.93 3.21 60.0
    BGTSR(X)-8 8 8.05 4104 19×3×72/0.05 4.2 2.33 2.44 78.5
    BGTSR(X)-10 10 10.00 5096 7×7×104/0.05 4.8 1.83 1.91 97.0
    10.07 5130 19×3×90/0.05 4.8 1.83 1.91 97.8
    BGTSR(X)-12 12 12.08 6156 19×3×108/0.05 5.4 1.50 1.60 117.0

    Product Advantages

    Pre-welded ends eliminate loose strands and reduce assembly time, ensuring consistent electrical contact in brush holders.

    Ultra-high flexibility from micro-stranded construction (single wire down to 0.05 mm) allows tight bending radii, ideal for high‑dynamic applications.

    Excellent conductivity from high-purity Cu-ETP (≥99.95%) with low DC resistance, minimizing power loss, especially under high‑frequency or pulsed currents.

    Full compliance with GB/T12970.4‑2009 ensures traceability and consistent quality.

    Customizable welding patterns (single-end, double-end) available upon request.

    Operating Conditions

    Temperature range: –40°C to +200°C (tin-plated)

    Environment: Dry or moderate humidity. Avoid prolonged contact with acids, alkalis, or corrosive gases. Tin-plated version can be used in mildly corrosive environments.

    Current rating: Refer to the max. DC resistance values in the specification table and select the appropriate cross‑section based on actual heat dissipation of the equipment.

    Maintenance and Care

    • Periodically inspect the conductor surface for oxidation, blackening, or mechanical damage, especially when used in high-humidity or chemical atmospheres.

    • During installation, avoid excessive tension or kinking; keep the minimum bending radius no less than 5 times the outer diameter of the wire.

    • For tin-plated products stored long‑term, use sealed packaging and store in a dry, clean environment to prevent discoloration of the tin layer.

    • In high-frequency equipment, ensure that terminal crimping or soldering is secure to avoid local overheating due to high contact resistance.

    After-Sales Service

    • Factory inspection reports and material certificates are provided, traceable to raw material batches.

    • Technical team available to assist with selection, structural optimisation, and failure analysis.

    • Small batch sample orders supported; lead time for bulk orders is usually 15–25 working days (expediting possible upon request).

    Customization Upon Request

    Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China carbon brush wire, highly flexible copper stranded wires, highly flexible round stranded cables, flexible copper stranded wires, Flexible Copper Stranded Wires for Electric Brush manufacturers and suppliers with high quality and low price. Welcome to contact us.

    Frequently Asked Questions

    What materials are used for electric brush wires?
    The conductors are manufactured from premium annealed Cu-ETP (C11000) copper wires with a copper content ≥ 99.95%, ensuring optimal electrical conductivity and flexibility.
    Why choose electric brush wires with spot-welded ends?
    Pre-welded ends eliminate loose or stray copper strands, significantly speeding up terminal assembly and securing reliable, consistent electrical contact in carbon brush holders.
    What surface finishes are available?
    We supply both bare copper and tin-plated copper options. Tin plating provides superior anti-oxidation and corrosion resistance in elevated temperatures and harsh environments.
    What is the operating temperature range for tin-plated brush wire?
    Tin-plated flexible copper stranded wires are designed to reliably operate in a broad thermal spectrum from –40°C up to +200°C.
    Can wire stranding structure and dimensions be customized?
    Yes. We provide bespoke manufacturing covering various cross-sectional areas, single wire diameters (down to 0.05 mm), single-end or double-end welding, and tailor-made packaging options.
    What manufacturing standards do these brush wires meet?
    All products strictly adhere to the GB/T12970.4-2009 standard, accompanied by full factory inspection reports and raw material batch traceability.