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High-Temperature Resistant Enameled Flat Copper/Aluminum Wire from China Suppliers and Factory for Industrial Applications

Introducing our premium enameled flat wire, expertly crafted from high-purity oxygen-free copper or superior electrical aluminum rods. This high-performance wire is precision-drawn and extruded using customized molds, ensuring exceptional quality for various applications. Ideal for high-temperature operating electrical devices, our wire is particularly suitable for industrial transformers, high-voltage reactors, and power converters, As a trusted supplier and factory based in China, we offer a range of insulating paint types, classified into six thermal grades from 120℃ to 220℃. Our enameled flat wire guarantees reliable performance even in extreme heat conditions, making it an essential choice for professionals requiring durability and efficiency in their electrical components

    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
    Conductor Thickness (a)
    0.80 – 5.60 mm
    Conductor Width (b)
    2.00 – 16.00 mm
    Max Width Ratio
    20 : 1

    Conductor Material Performance
    Soft Copper Flat Wire

    Adheres to GB5584.2-2009. Resistivity ≤ 0.017241 Ω·mm²/m at 20℃. Available in three mechanical strength grades: C1 / C2 / C3.

    Soft Aluminum Flat Wire

    Complies with 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 (0.06–0.11mm) and thick film (0.12–0.17mm), while self-adhesive layers range from 0.03–0.06mm, all monitored by professional dielectric loss meters. Key thermal performance highlights:

    🌡 QZY — 180℃ Offers 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℃ Boasts 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 ISO9001:2015 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 Listed CE Compliant GB/T 7095 IEC 60317

    Frequently Asked Questions
    What are the available temperature grades 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), covering a wide range of industrial and electrical applications.
    What conductor materials are available, and what standards do they follow?
    Two conductor materials are offered: soft copper flat wire (complying with GB5584.2-2009, resistivity ≤0.017241 Ω·mm²/m) and soft aluminum flat wire (complying with GB5584.3-2009, resistivity ≤0.02801 Ω·mm²/m), both tested at 20℃.
    What is the production size range for the enameled flat wire?
    The conductor thickness (a) ranges from 0.80mm to 5.60mm, and the conductor width (b) ranges from 2.00mm to 16.00mm, with a maximum conductor width-to-thickness ratio of 20:1.
    What insulation thickness options are available?
    Insulation is available in thin film (0.06–0.11mm) and thick film (0.12–0.17mm) options. Self-adhesive layers range from 0.03–0.06mm. All insulation performance is monitored using professional dielectric loss meters.
    What international quality certifications does the product hold?
    The enameled flat wire is produced under an ISO9001:2015 quality management system and has passed SGS, UL, and CE testing. Products comply with GB/T 7095 and IEC 60317 international standards, ensuring full quality compliance for global markets.
    Can the enameled flat wire be customized to specific technical requirements?
    Yes. Customization is fully supported. Customers can provide their own technical specifications or drawings, and the product will be manufactured accordingly to meet specific application demands, including special dimensions, insulation grades, or conductor materials.

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