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High-Quality Composite Wire for Oil-immersed Transformers - China Suppliers & Factory

Composite wire is a specialized winding wire made from a combination of copper and aluminum wires, meticulously arranged to meet specific requirements and covered with high-quality insulating materials. This versatile composite wire is primarily utilized in the windings of oil-immersed transformers, reactors, and other electrical devices, ensuring superior performance and reliability, As a leading manufacturer and factory in China, Hengte Electric specializes in the production of copper and aluminum paper-covered wire as well as composite wire. Our products are crafted with precision in size and shape, ensuring optimal wrapping tightness. With a continuous no-joint length exceeding 8,000 meters, our composite wire meets the highest industry standards and is ideal for various applications. Trust Hengte Electric for all your wiring needs and experience the quality that sets us apart as premier suppliers in the market

    Product Scope and Technical Specifications

    Our company specializes in the production of high-performance composite conductors, offering a full range of options including bare flat composite wire, paper-covered composite wire, enameled composite wire, and film-wrapped composite wire.

    Bare Flat Composite Wire Paper-Covered Composite Wire Enameled Composite Wire Film-Wrapped Composite Wire

    These products are designed for reliable electrical performance, excellent insulation, and mechanical stability, making them suitable for use in transformers, motors, reactors, and other electrical equipment.

    Production Scope and Size Range

    We provide flat wire conductors with thicknesses ranging from 1.00 mm to 12.00 mm and widths from 3.00 mm to 25.00 mm, with a width-to-thickness ratio ≤ 20 and a maximum cross-section of 200 mm². For round wire conductors, the available diameters range from 2.00 mm to 5.00 mm, meeting the needs of various custom designs and insulation structures.

    Flat Wire — Thickness
    1.00 mm – 12.00 mm
    Flat Wire — Width
    3.00 mm – 25.00 mm
    Max Cross-Section
    200 mm² (W/T ratio ≤ 20)
    Round Wire — Diameter
    2.00 mm – 5.00 mm

    For enameled paper-covered wire and enameled composite wire conductors, we recommend flat conductor sizes between 1.00–3.00 mm in thickness and 5.00–18.00 mm in width, while round conductors are available from 2.00–5.00 mm in diameter.

    Enameled Flat — Thickness
    1.00 mm – 3.00 mm
    Enameled Flat — Width
    5.00 mm – 18.00 mm
    Enameled Round — Diameter
    2.00 mm – 5.00 mm

    In addition, our bare wire, paper-wrapped, and film-wrapped composite conductors are manufactured with thicknesses from 1.00 mm to 6.00 mm, widths from 4.00 mm to 20.00 mm, a width-to-thickness ratio ≤ 20, and a maximum cross-section of 150 mm².

    All our wires are produced under strict quality control with smooth surface finish, precise dimension tolerance, and uniform insulation coating. We are capable of customizing conductor dimensions, insulation materials, and packaging types according to customer specifications, ensuring stable performance and long service life in demanding electrical and electronic applications.

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    Frequently Asked Questions
    Q What types of composite conductors do you manufacture?
    We manufacture a full range of composite conductors including bare flat composite wire, paper-covered composite wire, enameled composite wire, and film-wrapped composite wire, suitable for transformers, motors, reactors, and other electrical equipment.
    Q What is the available size range for flat wire conductors?
    Our flat wire conductors are available with thicknesses from 1.00 mm to 12.00 mm and widths from 3.00 mm to 25.00 mm. The width-to-thickness ratio is ≤ 20, and the maximum cross-section is 200 mm².
    Q What diameter range is available for round wire conductors?
    Round wire conductors are available in diameters ranging from 2.00 mm to 5.00 mm, suitable for various custom designs and insulation structures.
    Q Can conductor dimensions and insulation materials be customized?
    Yes. We offer full customization of conductor dimensions, insulation materials, and packaging types according to customer specifications, ensuring stable performance and long service life in demanding applications.
    Q What are the recommended sizes for enameled composite wire conductors?
    For enameled paper-covered wire and enameled composite wire, we recommend flat conductors with a thickness of 1.00–3.00 mm and width of 5.00–18.00 mm. Round conductors for this type are available from 2.00–5.00 mm in diameter.
    Q What quality standards are applied during production?
    All wires are produced under strict quality control, ensuring smooth surface finish, precise dimensional tolerance, and uniform insulation coating throughout every product batch.

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