Leave Your Message

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

Introducing our high-performance enameled flat wire, expertly manufactured from high-purity oxygen-free copper or premium electrical aluminum rod. This product is meticulously processed through precision drawing and extrusion utilizing customized molds, making it an ideal choice for windings in high-temperature electrical devices such as industrial transformers, high-voltage reactors, and power converters. Our wires are classified by insulating paint types, offering six thermal grades that range from 120℃ to 220℃, ensuring reliable performance even under extreme heat conditions. As a leading factory and supplier in China, we are committed to delivering top-quality products that meet the needs of our customers in various industrial 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)
    xanqingtu (1) xanqingtu (4) xanqingtu (6)
    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
    xanqingtu (2) xanqingtu (3) xanqingtu (5)
    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℃) — 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 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
    Q What is enameled flat wire and what are its main applications?
    Enameled flat wire is a type of insulated winding wire made from high-quality oxygen-free copper or electrical aluminum, coated with a uniform insulation enamel film. It is primarily used in windings of heavy-duty transformers, high-frequency reactors, and industrial inverters where stable performance at elevated temperatures is critical.
    Q What temperature grades are available for enameled flat wire?
    Six thermal grades are available: 120℃ (QQ/QQN), 130℃ (QZ), 155℃ (QZG), 180℃ (QZY), 200℃ (Q(ZY/XY)), and 220℃ (QXY). Each grade is formulated with a specific insulation paint to match different operating temperature requirements.
    Q What conductor materials are used, and do they meet international standards?
    Both soft copper and soft aluminum conductors are available. Soft copper flat wire complies with GB5584.2-2009 (resistivity ≤ 0.017241 Ω·mm²/m at 20℃), and soft aluminum flat wire complies with GB5584.3-2009 (resistivity ≤ 0.02801 Ω·mm²/m at 20℃). All products meet GB/T 7095 and IEC 60317 international standards.
    Q What are the available production dimensions for enameled flat wire?
    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 is 20:1, offering broad customization flexibility for diverse winding applications.
    Q What quality certifications does Hengte Electric hold for this product?
    As an ISO 9001:2015 certified supplier, Hengte Electric's enameled flat wire products have passed SGS, UL, and CE testing. They also meet GB/T 7095 and IEC 60317 standards, with breakdown voltage ratings of 1000V (Grade 1) and 2000V (Grade 2) at room temperature.
    Q Can enameled flat wire be customized according to specific technical requirements?
    Yes. Customization is available based on customer-provided technical specifications, including conductor dimensions, insulation thickness (thin film 0.06–0.11 mm or thick film 0.12–0.17 mm), self-adhesive layer thickness (0.03–0.06 mm), thermal grade, and conductor material type, ensuring a precise fit for specific application needs.

    Leave Your Message