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Corrosion-Resistant Polyimide Film Covered Wire from China Suppliers - High-Quality Factory Production

Introducing our high-quality polyimide film covered wire, a specialized winding wire meticulously crafted by wrapping 2-3 layers of premium polyimide film around a conductor made from oxygen-free copper or electrical round aluminum. Our wire features an extruded or drawn core that has undergone a precise annealing process, ensuring superior performance and durability, With exceptional voltage resistance and a slim insulation layer, this product can withstand temperatures up to 220°C, making it ideal for use in windings for motors, reactors, welding machines, and various other electrical appliances. As a leading supplier in China, our factory guarantees the highest standards of manufacturing, utilizing only the finest raw materials, including electrical bare copper and aluminum wire produced through extrusion, Choose our polyimide film covered wire for your electrical applications and experience reliability and efficiency brought to you by trusted suppliers from China

    Standards and Product Specifications

    GB/T 7673-2008 & Enterprise Standards

    Our production strictly follows GB/T 7673-2008 and corresponding Enterprise Standards, ensuring high precision, consistency, and reliability across all product lines. Each conductor is manufactured using advanced processing technology and quality-controlled under international standards to meet the demanding requirements of electrical and electronic industries.

    Specifications of Aluminum Flat Wire

    📏 Narrow Side
    1.00 mm – 8.00 mm
    📐 Wide Side
    3.00 mm – 25.00 mm

    These wires feature excellent conductivity, lightweight properties, and superior flexibility, making them suitable for transformers, reactors, and electric motor windings. Aluminum conductors are also favored for their cost-effectiveness and corrosion resistance in high-efficiency power systems.

    Specifications of Copper Flat Wire

    📏 Narrow Side
    0.90 mm – 6.00 mm
    📐 Wide Side
    2.00 mm – 16.00 mm

    Copper conductors are characterized by their outstanding electrical conductivity, heat resistance, and mechanical strength, ideal for high-power applications, transformers, and precision electronic devices.

    💡
    If your required size or specification is beyond the above range, customized production can be arranged to meet your specific design and technical needs.

    Breakdown Voltage of Polyimide Film Wrapped Wire

    ⚡ Insulation performance strictly conforms to business and industry standards — ensuring stable dielectric strength, long service life, and excellent thermal endurance under extreme operating conditions.

    The breakdown voltage and insulation performance of our polyimide film wrapped wire strictly conform to the corresponding business and industry standards, ensuring stable dielectric strength, long service life, and excellent thermal endurance under extreme operating conditions.

    Technical Parameter

    Wrapped Process

    Insulation Thickness (mm)

    Min Breakdown Voltage / V >

    Nominal Value

    Tolerance

    2-layers polyimide film self-locking wrapped

    0.15

    ±0.03

    6000

    2-layers polyimide film wrap in the opposite direction

    0.15

    ±0.03

    6000

    3 layers of polyimide film wrap in the opposite direction

    0.23

    ±0.03

    7000

    ? Frequently Asked Questions
    Q What standards do your flat wires comply with?
    A Our flat wires are produced in strict accordance with GB/T 7673-2008 and corresponding Enterprise Standards, ensuring high precision, consistency, and reliability across all product lines. Advanced processing technology and international quality control are applied throughout production.
    Q What size range is available for aluminum flat wire?
    A Aluminum flat wires are offered with a narrow side dimension ranging from 1.00 mm to 8.00 mm and a wide side ranging from 3.00 mm to 25.00 mm. For dimensions outside this range, customized production is available upon request.
    Q What are the size specifications for copper flat wire?
    A Copper flat wires are available with a narrow side from 0.90 mm to 6.00 mm and a wide side from 2.00 mm to 16.00 mm. Custom sizes beyond these ranges can be arranged to meet specific design and technical requirements.
    Q What is the minimum breakdown voltage for polyimide film wrapped wire?
    A For 2-layer polyimide film wrapped configurations (both self-locking and opposite direction), the minimum breakdown voltage is 6000 V. For 3-layer opposite direction wrapping with a nominal insulation thickness of 0.23 mm, the minimum breakdown voltage reaches 7000 V.
    Q What applications are aluminum and copper flat wires suitable for?
    A Aluminum flat wires are widely used in transformers, reactors, and electric motor windings, valued for their lightweight nature, cost-effectiveness, and corrosion resistance. Copper flat wires are ideal for high-power applications, transformers, and precision electronic devices due to their superior conductivity, heat resistance, and mechanical strength.
    Q Can you produce flat wires with custom sizes or specifications?
    A Yes. If your required size or specification falls beyond our standard ranges for either aluminum or copper flat wire, customized production can be arranged. Please contact us with your specific design and technical requirements for a tailored solution.

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