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China Suppliers Factory for Composite Wire for Oil-immersed Transformers and Electric Devices

Composite wire from Hengte Electric is an essential product made from a combination of copper and aluminum wires, meticulously arranged to meet specific requirements and insulated with high-quality materials. Our composite wires are primarily designed for windings in oil-immersed transformers, reactors, and various electrical devices. As a leading factory in China, we take pride in our precise sizing and shaping, ensuring optimal wrapping tightness. Our products feature a continuous no-joint length exceeding 8,000 meters, making us a trusted supplier for all your winding wire needs. Choose Hengte Electric for reliable, high-performance composite wire that meets the demands of modern electrical applications

    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
    Width-to-thickness ratio ≤ 20
    Flat Wire — Width
    3.00 mm – 25.00 mm
    Max cross-section: 200 mm²
    Round Wire — Diameter
    2.00 mm – 5.00 mm
    Custom designs available

    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 / Paper-Covered — Flat Thickness
    1.00 mm – 3.00 mm
    Enameled / Paper-Covered — Flat Width
    5.00 mm – 18.00 mm
    Enameled / Paper-Covered — Round
    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.

    Bare / Paper / Film — Thickness
    1.00 mm – 6.00 mm
    Width-to-thickness ratio ≤ 20
    Bare / Paper / Film — Width
    4.00 mm – 20.00 mm
    Max cross-section: 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.

    Frequently Asked Questions
    Q What types of composite conductors does your company produce?
    We produce a comprehensive range of composite conductors including bare flat composite wire, paper-covered composite wire, enameled composite wire, and film-wrapped composite wire. Each type is engineered for specific electrical insulation and mechanical performance requirements.
    Q What is the maximum cross-sectional area available for flat wire conductors?
    For standard flat wire conductors, the maximum cross-section is 200 mm², with thickness up to 12.00 mm and width up to 25.00 mm. For bare wire, paper-wrapped, and film-wrapped composite conductors, the maximum cross-section is 150 mm².
    Q What applications are these composite conductors suitable for?
    These conductors are widely used in transformers, electric motors, reactors, and various other electrical and electronic equipment where reliable electrical performance, strong insulation, and mechanical stability are essential.
    Q Can conductor dimensions and insulation materials be customized?
    Yes. We offer full customization of conductor dimensions, insulation materials, and packaging types based on customer specifications. Our engineering team works closely with clients to meet precise technical and application requirements.
    Q What size range is recommended for enameled composite wire conductors?
    For enameled paper-covered and enameled composite wire conductors, we recommend flat conductor sizes of 1.00–3.00 mm in thickness and 5.00–18.00 mm in width. Round conductors in this category are available from 2.00 mm to 5.00 mm in diameter.
    Q How is quality controlled during production?
    All products are manufactured under strict quality control processes that ensure smooth surface finish, precise dimensional tolerances, and uniform insulation coating. This guarantees stable performance and long service life even in demanding electrical environments.

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