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Highly Flexible Stranded Copper Wire for Electricians - China Factory Suppliers for Reliable Electrical Solutions
Product Features
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Exceptional Flexibility
The multi-strand fine copper wire construction allows for easy bending, twisting, and routing, making it ideal for installations in confined spaces or with complex cable paths.
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Superior Conductivity
Manufactured from high-purity electrolytic copper (typically ≥99.9%) and annealed, it ensures low resistance and high-efficiency current transmission, complying with international conductor standards.
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High Fatigue Resistance & Durability
The stranded design distributes mechanical stress, offering a longer service life and higher reliability than solid-core wires in applications involving frequent flexing, vibration, or movement.
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Easy & Reliable Installation
Its inherent flexibility simplifies manual handling and crimping. The multiple fine strands compact to form a tighter connection with greater contact area under terminals, reducing the risk of hot spots and loosening.
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Effective Heat Dissipation
The micro-gaps between strands facilitate airflow, aiding in heat dissipation during operation.
Application Fields
This flexible stranded copper wire is widely used in demanding scenarios requiring reliable connectivity under physical stress. Key applications include:
- Complex wiring within distribution cabinets
- Equipment terminal connections
- Grounding system jumpers
- Power supply for mobile equipment
- Interconnections in new energy systems
It is particularly suited for high-demand installations where space is limited, or where vibration and frequent flexing are present.
Structural Composition
🔩 Conductor
- Material: High-purity electrolytic copper (Cu ≥ 99.9%)
- Temper: Annealed (softened) — key process converting copper from hard-drawn to a soft, flexible state
- Construction: Multiple round copper wires (dozens to thousands), individual wire diameters from 0.05mm to 0.2mm, spirally stranded in a concentric lay pattern. Finer wires and greater strand count = more flexibility.
✨ Optional Coatings
- Bare Copper: Most common and cost-effective option
- Tinned Copper: Tin layer over copper wires — provides anti-oxidation, corrosion resistance, improved solderability, and prevents adverse reactions with certain insulation types
- Silver-Plated Copper: For high-frequency performance or lower contact resistance; superior performance at a higher cost
🧱 Insulation for insulated wires
- Materials: PVC, XLPE, Rubber (Silicone, EPR), Fluoropolymers, etc.
- Function: Provides electrical insulation and basic mechanical protection. The material determines the cable's temperature rating and resistance to oil, chemicals, and environmental conditions.
Product Specifications
| Nominal CSA (mm²) | Structure | Rough Translation (km/kg) | |
|---|---|---|---|
| Total Number of Wires | Number of Strands × Wires × Cores / Nominal Diameter (mm) | ||
| 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 |
📌 Custom Options Available: Xingma Copper Industry can customize the cross-sectional area according to customer requirements, with single wire diameters ranging from 0.05mm to 0.15mm. Rectangular braided wires are produced using 8-spindle or 12-spindle braiding machines. Cutting lengths are based on drawings or as specified by the customer.
Frequently Asked Questions
QWhat is the difference between flexible stranded copper wire and solid-core copper wire?
Flexible stranded copper wire is made up of many fine copper wires twisted together, making it highly flexible, fatigue-resistant, and suitable for dynamic or vibration-prone environments. Solid-core wire, by contrast, consists of a single conductor and is better suited for fixed installations where bending is minimal. Stranded wire is preferred wherever routing in tight spaces or repeated movement is required.
QWhat copper purity is used in your flexible stranded wire?
Our flexible stranded copper wire uses high-purity electrolytic copper with a purity of Cu ≥ 99.9%. The conductor is also annealed (softened) to maximize flexibility and conductivity while minimizing electrical resistance.
QWhat coating options are available for the copper conductor?
Three coating options are available: Bare Copper (standard, cost-effective), Tinned Copper (enhanced anti-oxidation, corrosion resistance, and solderability), and Silver-Plated Copper (for high-frequency applications or where minimal contact resistance is critical). The right choice depends on your operating environment and performance requirements.
QCan Xingma Copper Industry produce custom specifications?
Yes. Xingma Copper Industry offers full customization of cross-sectional area and wire configuration. Individual wire diameters can range from 0.05mm to 0.15mm, and braiding is performed using 8-spindle or 12-spindle machines. Cutting lengths can be specified based on technical drawings or customer requirements.
QWhat insulation materials are available for insulated versions of this wire?
Insulated versions can be manufactured with a range of materials including PVC, XLPE, Rubber (such as Silicone or EPR), and Fluoropolymers. Each material offers different temperature ratings and levels of resistance to oils, chemicals, and environmental exposure, allowing the cable to be tailored for specific application demands.
QIn which industries or applications is this flexible stranded copper wire most commonly used?
This wire is widely used across multiple industries, including electrical distribution (cabinet wiring, terminal connections), industrial automation (mobile equipment power supply, vibration-prone machinery), renewable energy and new energy systems (solar, EV, energy storage interconnections), and grounding systems. It is especially valuable wherever space is limited or cables must withstand repeated movement and flexing.