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High-Temperature Resistant Enameled Flat Copper/Aluminum Wire Suppliers from China - Factory Direct Quality

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Our premium enameled flat wire is meticulously manufactured from high-purity oxygen-free copper or superior electrical aluminum rod. As a leading China supplier and factory, we utilize precise drawing and extrusion processes with custom molds to produce this exceptional wire. Designed for windings in high-temperature electrical applications such as industrial transformers, high-voltage reactors, and power converters, our product is classified by insulating paint types, covering six thermal grades from 120℃ to 220℃. This ensures reliable and efficient performance even in the most extreme heat conditions, making it an ideal choice for demanding electrical environments.

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    Product Information

    This enameled flat wire takes high-quality oxygen-free copper or electrical aluminum rod as raw materials, which are strictly processed through drawing and extrusion by specification-specific molds to ensure uniform conductor structure. Its primary application lies in the windings of electrical equipment that demand stable operation at elevated temperatures, including heavy-duty transformers, high-frequency reactors, and industrial inverters.

    Based on the insulation paint formulation, it is categorized into six core types to match different thermal requirements:

    • 120℃  Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal Enameled Flat Wire (QQ/QQN)
    • 130℃  Polyester Enameled Flat Wire (QZ)
    • 155℃  Modified Polyester Enameled Flat Wire (QZG)
    • 180℃  Polyester Imide Enameled Flat Wire (QZY)
    • 200℃  Polyester Imide / Polyamide-Imide Composite Enameled Flat Wire (Q(ZY/XY))
    • 220℃  Polyamide Imide Enameled Flat Wire (QXY)
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    Production Scope
    Parameter Range
    Conductor Thickness (a) 0.80 – 5.60 mm
    Conductor Width (b) 2.00 – 16.00 mm
    Maximum Conductor Width Ratio 20 : 1
    Conductor Material Performance

    CopperSoft Copper Flat Wire — GB5584.2-2009

    Resistivity ≤ 0.017241 Ω·mm²/m at 20℃, available in three mechanical strength grades: C1 / C2 / C3.

    AluminumSoft Aluminum Flat Wire — GB5584.3-2009

    Resistivity ≤ 0.02801 Ω·mm²/m at 20℃, ensuring efficient electrical conductivity.

    Detail Shot
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    Insulation & Thermal Performance

    Insulation thickness options include thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm), while self-adhesive layers range from 0.03–0.06 mm, all monitored by professional dielectric loss meters.

    • QZY (180℃) — Exceptional heat resistance and heat shock resistance, suitable for high-temperature industrial equipment.
    • Q(ZY/XY) (200℃) — Combines refrigerant and radiation resistance, ideal for harsh operating environments.
    • QXY (220℃) — Superior chemical solvent resistance, maintaining stability in extreme conditions.

    All products meet GB/T 7095 series and IEC 60317 standards, with breakdown voltage values reaching 1000V (Grade 1) and 2000V (Grade 2) at room temperature.

    As an ISO 9001:2015 certified supplier, Hengte Electric's products have passed SGS, UL, and CE tests, ensuring quality compliance. Customization is available based on customer-provided technical specifications.

    ISO 9001:2015 SGS Certified UL Certified CE Certified GB/T 7095 IEC 60317
    Frequently Asked Questions
    Q
    What temperature grades are available for the enameled flat wire?
    The enameled flat wire is available in six thermal grades: 120℃ (QQ/QQN), 130℃ (QZ), 155℃ (QZG), 180℃ (QZY), 200℃ (Q(ZY/XY)), and 220℃ (QXY). Each grade uses a specific insulation paint formulation to match the thermal demands of different electrical applications.
    Q
    What conductor materials are used in the enameled flat wire?
    The wire is manufactured using high-quality oxygen-free copper or electrical-grade aluminum rods. Soft copper flat wire complies with GB5584.2-2009 and soft aluminum flat wire complies with GB5584.3-2009, both offering excellent electrical conductivity and mechanical performance.
    Q
    What are the available conductor dimensions?
    Conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and conductor width (b) ranges from 2.00 mm to 16.00 mm. The maximum conductor width-to-thickness ratio is 20:1, allowing for a wide variety of winding configurations.
    Q
    What international standards does the enameled flat wire comply with?
    All products comply with GB/T 7095 series and IEC 60317 international standards. The manufacturer, Hengte Electric, holds ISO 9001:2015 certification and the products have successfully passed SGS, UL, and CE testing and certification.
    Q
    What insulation thickness options are available?
    Insulation thickness is available in thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm) options. For products with a self-adhesive layer, the adhesive coating thickness ranges from 0.03 to 0.06 mm. All insulation layers are monitored using professional dielectric loss meters.
    Q
    Can the enameled flat wire be customized to specific technical requirements?
    Yes, customization is fully supported. Customers can provide their own technical specifications — including conductor dimensions, insulation grade, conductor material, and thermal class — and Hengte Electric will manufacture the enameled flat wire accordingly to meet specific project or equipment requirements.

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