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Highly Flexible Stranded Copper Wire from China Factory - Top Suppliers for Motors, Electronics, and Instrument Wiring
Technical Data
Annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
Bare, Tin plating
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
Customization Upon Request
| 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 |
| 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 |
| 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 |
| 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
- Ultra-high flexibility: Micro-stranded construction (single wire down to 0.05mm) ensures a small bending radius and high resistance to repeated flexing, suitable for high-dynamic applications.
- Excellent conductivity: Made of high-purity Cu-ETP copper (≥99.95%), low DC resistance, reduced power loss, especially effective for high-frequency current transmission.
- Multiple finishes: Available bare or tin-plated. Tin plating provides effective oxidation and corrosion resistance, and improves soldering reliability.
- Standard compliance: Strictly manufactured according to GB/T12970.4-2009, ensuring consistency and traceability.
- Flexible customization: Structure, cross-section, and packing can be adjusted upon request; non-standard solutions are available.
Operating Conditions
–40°C to +200°C (tin-plated)
Dry or moderate humidity. Avoid prolonged contact with acids, alkalis, or corrosive gases. Tin-plated version can be used in mildly corrosive environments.
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 (FAQ)
We use high-purity annealed Cu-ETP wires (C11000) with a copper content of ≥ 99.95%, ensuring exceptional electrical conductivity and minimal power loss.
Micro-stranded wire configurations (from 0.05mm to 0.12mm) deliver superior flexibility, a compact bending radius, and high fatigue resistance in high-dynamic flexing applications like carbon brushes.
We provide bare copper and tin-plated copper options. Tin-plated copper offers superior corrosion and oxidation resistance, operating effectively from –40°C to +200°C.
To avoid internal stress and kinking, keep the minimum bending radius at least 5 times the outer diameter of the wire during assembly.
Yes. We support custom wire constructions, non-standard cross-sections, and flexible packaging modes including rolls, spools, and wooden drums.
All products are strictly manufactured according to GB/T12970.4-2009 standards and are accompanied by material inspection certificates traceable to raw material batches.