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

Introducing our high-performance enameled flat wire, meticulously crafted from premium oxygen-free copper or high-quality electrical aluminum rod. This product is expertly processed through precision drawing and extrusion using customized molds, making it an ideal choice for manufacturers in need of reliable solutions. Specifically designed for windings in high-temperature electrical devices such as industrial transformers, high-voltage reactors, and power converters, our flat wire stands out in the market, As a trusted supplier in China, our enameled flat wire is classified by various insulating paint types and offers six thermal grades ranging from 120℃ to 220℃. This ensures consistent and dependable performance even in extreme heat conditions. Partner with our factory to access superior quality wire that meets the rigorous demands of today's electrical applications

    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
    Maximum Conductor Width Ratio 20 : 1
    Conductor Material Performance

    Soft Copper Flat Wire — Adheres to GB5584.2-2009, with 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, with 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. 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.

    ISO9001:2015 SGS Certified UL Certified CE Certified GB/T 7095 IEC 60317
    Frequently Asked Questions
    What are the available temperature grades for 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 meet different operating temperature requirements.
    What conductor materials are used in the enameled flat wire?
    The wire is manufactured using high-quality oxygen-free copper or electrical-grade aluminum rod. Soft copper flat wire conforms to GB5584.2-2009 with resistivity ≤ 0.017241 Ω·mm²/m at 20℃, while soft aluminum flat wire complies with GB5584.3-2009 with resistivity ≤ 0.02801 Ω·mm²/m at 20℃.
    What are the dimensional specifications for production?
    The conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and the conductor width (b) ranges from 2.00 mm to 16.00 mm. The maximum conductor width-to-thickness ratio supported is 20:1.
    What international standards does the enameled flat wire comply with?
    All products comply with the GB/T 7095 series and IEC 60317 international standards. Breakdown voltage values reach 1000V (Grade 1) and 2000V (Grade 2) at room temperature. The manufacturer is ISO9001:2015 certified, and products have passed SGS, UL, and CE testing.
    What are the typical applications of enameled flat wire?
    Enameled flat wire is primarily used in the windings of electrical equipment requiring stable high-temperature operation, such as heavy-duty transformers, high-frequency reactors, and industrial inverters. Its flat cross-section provides higher fill factor and better thermal dissipation compared to round wire.
    Is customization available for enameled flat wire specifications?
    Yes, customization is available. Hengte Electric can produce enameled flat wire based on customer-provided technical specifications, including specific dimensions, insulation thickness (thin film 0.06–0.11 mm or thick film 0.12–0.17 mm), self-adhesive layers (0.03–0.06 mm), and thermal grade requirements.

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