China High-Performance Flexible Stranded Copper Wire - Trusted China Suppliers and Factory for Electricians Manufacturers, Factory

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China High-Performance Flexible Stranded Copper Wire - Trusted China Suppliers and Factory for Electricians Manufacturers, Factory

Discover our high-performance flexible stranded copper wire, a premium product from a leading China factory. Crafted with precision from multiple high-purity annealed copper wires, this wire ensures superior conductivity and unmatched flexibility, making it ideal for demanding electrical installations. It is particularly suited for complex wiring in distribution cabinets, equipment terminal connections, and power access points that require frequent movement. As one of the top suppliers in the industry, we understand the importance of durability; our wire is designed to withstand mechanical stress and vibrations, ensuring a stable, long-lasting connection solution for all your electrical needs.

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Product Description

Product Features

⚡ 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.

🔋 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.

🛡️ 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.

🔧 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.

🌬️ 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, and 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) — the key process for achieving flexibility by converting the copper from a hard-drawn to a soft state.
Construction: Comprised of multiple (from dozens to thousands) round copper wires, with individual wire diameters ranging from 0.05mm to 0.2mm. These wires are spirally stranded together, typically in a concentric lay pattern. Finer individual wires and a greater strand count result in a more flexible cable.

Optional Coatings

Bare Copper: The most common and cost-effective option.
Tinned Copper: Features a tin layer over the copper wires, primarily providing anti-oxidation and corrosion resistance, improving solderability, and preventing adverse reactions between copper and certain insulation types.
Silver-Plated Copper: Used for specific applications requiring very high frequency performance or lower contact resistance. It offers superior performance at a higher cost.

Insulation (for insulated wires)

Materials: PVC (Polyvinyl Chloride), XLPE (Cross-Linked Polyethylene), Rubber (e.g., 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)
Nominal CSA (mm²)	Total Number of Wires	Number of Strands × Number of Wires × Number of Cores / Nominal Diameter of Individual Wire	Rough Translation (km/kg)
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 square areas can be manufactured according to specific 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 customer specifications.

Frequently Asked Questions

Q What makes flexible stranded copper wire more suitable than solid-core wire for dynamic applications?

Flexible stranded copper wire is composed of many fine individual copper wires twisted together, which distributes mechanical stress across all strands. This design enables the wire to withstand repeated bending, vibration, and movement without fatigue failure — making it far more durable than solid-core wire in dynamic or mobile environments.

Q What is the minimum and maximum conductor cross-sectional area (CSA) available?

Standard specifications range from 0.55 mm² up to 25.00 mm². Custom CSA configurations are also available based on specific requirements, with individual wire diameters from 0.05mm to 0.15mm.

Q What are the differences between bare copper, tinned copper, and silver-plated copper options?

Bare copper is the most economical and widely used option. Tinned copper adds a protective tin layer that resists oxidation and corrosion, improves solderability, and is compatible with a wider range of insulation materials. Silver-plated copper offers the best high-frequency performance and lowest contact resistance.

Q Which insulation materials are available, and how do I choose the right one?

Available insulation materials include PVC, XLPE, Silicone Rubber, EPR, and Fluoropolymers. The choice depends on your application's temperature range, exposure to oils or chemicals, and environmental conditions. For example, silicone rubber suits high-temperature environments.

Q Can the wire be customized in terms of length and braiding configuration?

Yes. Cutting lengths can be specified based on technical drawings or specific requirements. Rectangular braided wires can be produced using 8-spindle or 12-spindle braiding machines, allowing for flexible configuration to meet various installation needs.

Q Is this wire compliant with international standards?

Yes. The conductors are manufactured from high-purity electrolytic copper (Cu ≥ 99.9%) and processed through annealing to meet international conductor standards for resistance, flexibility, and current-carrying capacity.

Product Detail

China High-Performance Flexible Stranded Copper Wire - Trusted China Suppliers and Factory for Electricians Manufacturers, Factory