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China Suppliers Factory Flexible Copper Braided Connectors for Precision Equipment with High Electrical Conductivity
Structure Composition
Base Material
High-purity electrolytic copper wire (mainly T1/T2 red copper) with high conductivity (resistivity ≤0.0175 Ω·mm²/m), thermal conductivity, and oxidation resistance for low-loss current transmission and stable connection temperature.
Surface Options
Tin-plated copper (better soldering), silver-plated copper (enhanced high-frequency conductivity & corrosion resistance), or antioxidant coatings for special needs.
1. Braided Structure Design
Core
Hundreds to thousands of fine copper wires (diameter 0.05–0.3 mm) twisted into a dense, uniform bundle with specific lay direction (left/right).
Design
Precision-braided by machines (8/12/24/32/48 spindles) into mesh, tube, or custom shapes (e.g., flat/oval). Adjust density and strand count to balance flexibility with required tensile strength and deformation resistance.
2. Functional Enhancement Layers (Optional)
Surface Treatment
Bare copper (standard), tin-plated (anti-oxidation + soldering), or silver-plated (low-resistance + corrosion resistance).
Protection Layers
PVC/silicone sleeves (insulation), metal shielding (EMI resistance), or high-temperature coating (−40°C to +120°C).
Application Fields
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Power & Energy
Transformer flexible leads, dynamic connections for high/low voltage cabinets, soft busbar transitions, flexible conductive paths for welding machines/electrolysis equipment.
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Rail & Vehicles
Pantograph flexible connections, inter-car power/signal harnesses, dynamic conductive components for EV battery modules.
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Industrial Automation & Robotics
Conductive circuits for robotic joints, flexible motor connections, flexible sensor signal cables.
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New Energy
Flexible PV combiner connections, dynamic wind turbine pitch system conductors, flexible energy storage transitions.
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Marine & Offshore
Vibration-resistant electrical connections for engine rooms, corrosion-resistant conductive paths for marine equipment.
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Building & Smart Facilities
Sliding contact systems, flexible lighting power lines, concealed building conductive structures.
Key Features
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Extreme Flexibility Braided structure enables tight bending (radius 5–10× wire diameter) and repeated torsion resistance, ideal for confined spaces, complex paths, or dynamic movement (e.g., robot joints, internal wiring of mobile devices).
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High Conductivity Copper core delivers near-solid-copper conductivity, ensuring stable transmission of high currents (up to thousands of amps, based on cross-section) or weak signals with low heat generation and minimal energy loss.
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Mechanical Durability Outperforms standard flexible wires in tensile strength and crush resistance, resists loosening or breaking during extended use, and supports high-cycle dynamic bending (tested for millions of bends).
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Customizable Design Precision-tailored to customer specs including conductor cross-section (mm²), strand diameter (0.05–0.3 mm), braiding strand count, length (custom-cut or blueprint-defined), cross-sectional shape (round/flat/custom), and surface treatment combinations.
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Environmental Adaptability Configurable protective layers enable operation in extreme conditions including high/low temperatures, humidity, salt spray, oil contamination, and EMI interference, suitable for industrial, outdoor, or specialized environments.
Product Specifications
| Nominal CSA (mm²) | Structure | Rough Translation (km/kg) | |
|---|---|---|---|
| Total Number of Wires | Number of Strands × Number of Wires × Number of Cores / Nominal Diameter of Individual Wire | ||
| 0.55 | 280 | 8*35/0.05 | 5.33 |
| 0.65 | 336 | 8*42/0.05 | 6.30 |
| 0.75 | 384 | 8*48/0.05 | 7.27 |
| 0.90 | 456 | 8*57/0.05 | 8.72 |
| 1.00 | 512 | 8*64/0.05 | 9.69 |
| 1.50 | 768 | 8*96/0.05 | 14.53 |
| 2.00 | 1024 | 8*128/0.05 | 19.38 |
| 2.50 | 1280 | 8*160/0.05 | 24.22 |
| 3.00 | 1680 | 8*210/0.05 | 29.06 |
| 3.50 | 1784 | 8*223/0.05 | 33.91 |
| 4.00 | 2048 | 8*256/0.05 | 38.75 |
| 4.50 | 2296 | 8*287/0.05 | 43.59 |
| 5.00 | 2560 | 8*320/0.05 | 48.44 |
| 5.50 | 2800 | 8*350/0.05 | 53.28 |
| 6.00 | 3072 | 8*384/0.05 | 58.13 |
| 8.00 | 4080 | 8*510/0.05 | 77.50 |
| 25.00 | 12840 | 12*1070/0.05 | 242.19 |
| 10.00 | 1280 | 8*160/0.1 | 98.67 |
| 12.00 | 1536 | 8*192/0.1 | 118.40 |
| 16.00 | 2040 | 8*255/0.1 | 157.87 |
| 25.00 | 2960 | 8*370/0.1 | 246.68 |
| 2.5 | 144 | 24*6*1/0.15 | 6/1 |
| 4 | 240 | 24*10*1/0.15 | 6/1.3 |
| 8 | 480 | 48*10*1/0.15 | 13/1.5 |
| 10 | 576 | 24*24*1/0.15 | 12.5/2 |
| 576 | 48*12*1/0.15 | 16/1.5 | |
| 12 | 720 | 24*30*1/0.15 | 14/2 |
| 720 | 48*15*1/0.15 | 18/1.5 | |
| 16 | 8160 | 24*340*1/0.05 | 16/2.2 |
| 960 | 24*50*1/0.15 | 16.2.2 | |
| 960 | 48*20*1/0.15 | 22/1.8 | |
| 20 | 1200 | 24*50*1/0.15 | 18/2.5 |
| 1200 | 48*25*1/0.15 | 25/2.0 | |
| 25 | 12720 | 48*265*1/0.05 | 22/3.0 |
| 1440 | 48*30*1/0.15 | 28/2.2 | |
| 1440 | 48*15*2/0.15 | 25/2.3 | |
| 35 | 1920 | 48*20*2/0.15 | 26/3.5 |
| 17832 | 24*743*1/0.05 | 25/4.0 | |
| 50 | 2880 | 48*30*2/0.15 | 30/3.5 |
| 2880 | 48*20*3/0.15 | 28/4.8 | |
| 25440 | 48*265*2/0.05 | 25/5.0 | |
| 100 | 5760 | 48*30*4/0.15 | 38/6.0 |
| 50880 | 48*530*2/0.05 | 32/6.0 | |
📌 Custom Orders:
Xingma Copper can customize the square footage and individual wire diameter (0.05 mm – 0.15 mm) according to customer requirements. Braiding is performed on braiding machines (8-spindle / 12-spindle / 24-spindle / 32-spindle / 48-spindle), with cutting lengths based on drawings or customer specifications.
Frequently Asked Questions
Q
What is the difference between bare copper, tin-plated, and silver-plated braided copper wire?
Bare copper offers standard conductivity and is cost-effective for general use. Tin-plated copper provides improved oxidation resistance and better solderability, making it suitable for humid or corrosive environments. Silver-plated copper delivers the lowest contact resistance and superior high-frequency performance, ideal for precision electronics and demanding applications.
Q
Can the braided copper wire be customized in terms of size and shape?
Yes. Xingma Copper offers full customization including conductor cross-section (mm²), individual wire diameter (0.05–0.15 mm), strand count, braiding spindle configuration (8/12/24/32/48), cross-sectional shape (round, flat, oval, or custom), and cut length based on drawings or customer specifications.
Q
What industries are braided copper flexible connectors most commonly used in?
Braided copper flexible connectors are widely used across power & energy, rail transit, industrial automation & robotics, new energy (solar/wind), marine & offshore, and building & smart facility sectors. Any application requiring flexible, high-current, or vibration-resistant electrical connections can benefit from these products.
Q
How does the braided structure improve flexibility and durability compared to solid wire?
The braided structure consists of hundreds to thousands of ultra-fine copper wires (as thin as 0.05 mm), allowing the conductor to bend with a radius as small as 5–10× the wire diameter. This multi-strand design distributes mechanical stress evenly, enabling millions of bending cycles without fatigue failure — far exceeding the performance of rigid or standard flexible wires.
Q
What protective options are available for harsh operating environments?
Optional protective layers include PVC or silicone sleeves for insulation, metal shielding braid for EMI/RFI resistance, and high-temperature coatings rated from −40°C to +120°C. These options make the product suitable for extreme temperatures, humidity, salt spray, oil exposure, and electromagnetic interference environments.
Q
What is the resistivity of the copper used, and why does it matter?
The base material uses high-purity T1/T2 electrolytic copper with a resistivity of ≤0.0175 Ω·mm²/m — among the lowest of any commonly used conductor material. Low resistivity means less energy is lost as heat during current transmission, ensuring efficient power delivery, stable operating temperatures, and longer service life for connected equipment.