Are you curious about the top players in China’s rectangular magnet wire industry? With the rising demand for electrified vehicles and advanced industrial applications, several factories are standing out for their quality and innovation. Let’s take a look at some of the leading manufacturers making a significant impact in this field.

China Enamelled Copper Wire & Rectangular …

Product Details: The Ultrafine Magnetic Copper Wire is designed for voice coils and windings, featuring a diameter of 0.02mm. It is made from copper and insulated with enamel. The thermal rating of this wire is 155 degrees Celsius. It is optimized for use in applications requiring high magnetic properties and precise winding.

Pros:
– High electrical and thermal conductivity due to the use of copper
– Ultrafine diameter allows for precise applications such as voice coils and windi…
– Enamel insulation provides good electrical isolation and durability
– Suitable for high-temperature applications with a thermal rating of 155 degrees…

Cons:
– Limited bandwidth and transmission distance compared to other materials like fib…
– Susceptible to electromagnetic interference and signal degradation over long dis…
– Higher cost compared to some alternative materials
– Can oxidize over time if not properly maintained, potentially affecting conducti…

Rectangular Copper Magnet Wire – Manufacturers, Suppliers …

Product Details: Rectangular copper magnet wire, also known as flat copper wire, is used in electromagnets to generate a magnetic field. It has a conductor thickness of 0.04~1.8mm and a conductor width of 0.155~7.5mm. The wire is enamelled with EI/AIW/EIW insulation and is certified by IEC/NEMA/JIS/RoHS/ISO standards. It is available in various sizes and is used in applications such as automobiles, motors, transformers, and industrial machinery[3].

Pros:
– Offers a higher fill factor due to its rectangular shape, allowing for more effi…
– Provides better power density and lower electrical resistance due to its higher…
– Enhances heat dissipation due to its larger surface area compared to round wires…
– Supports automated winding and coil insertion, making the manufacturing process…
– Allows for compact and lightweight electronic device designs without compromisin…

Cons:
– The manufacturing process is complex and time-consuming, which increases the cos…
– Handling rectangular copper wires requires extra care as they are prone to insul…
– Less flexible than round wires, making them more susceptible to breakage during…
– More difficult to wind compared to round wires due to their shape and sharp edge…

Ultra-Fine Enameled Rectangular Copper Wire

Product Details: The Ultra-fine enameled rectangular copper wire is made by rectangular copper wire coated with high temperature insulating varnish. It has a cross-sectional area of ≤ 6mm², with parameters including insulation species, temperature index, conductor thickness, and width. The product is widely used in electronic transformers, power supplies, solar energy, wireless chargers, automotive electronics, switches, and mobile phones. The dimensions range from 0.080-1.00mm in thickness and 0.800-6.00mm in width. It meets various thermal classes and has features such as excellent weldability, high heat resistance, and high mechanical properties.

Pros:
– In the same winding space, it can make the coil spacer factor rate up to 96%, th…
– The use of precision enameled flat wire has a larger surface area, better therma…
– It meets the requirement of flattening, light weight, low power consumption, and…
– The coil electromagnetic effect is better, with less vibration and low noise whe…
– The product has great adhesion and stable performance consistency due to first-c…

Cons:
– The manufacturing process is complex and requires different types of machinery,…
– Handling rectangular copper wires needs extra care as they can get twisted and a…
– They are less flexible and cannot be bent in all directions, making them prone t…

Enameled Rectangular Magnet Wire – Ruiyuan

Product Details: Enameled Rectangular Magnet Wire is made from rectangular copper wire coated with a thin layer of insulating enamel. The wire is available in various sizes, with conductor thickness ranging from 0.04 to 1.8mm and width from 0.155 to 7.5mm. It meets standards such as IEC, JIS, NEMA, RoHS, and ISO. The wire is used for winding coils in applications like transformers, motors, photovoltaic inverters, and other electrical equipment. It is packaged on spools with cartons and has a delivery time of 2-15 working days[5].

Pros:
– Occupies smaller volume, saving 9-12% of space compared to round wires, making i…
– Higher coil slot full rate, reaching over 95%, which reduces resistance and incr…
– Larger cross-sectional area, improving heat dissipation and reducing high-freque…
– Excellent bending property, high flexibility of the enamel, good resistance to a…
– Better power density, lower electrical resistance, and improved heat dissipation…
– Suitable for high-temperature and high-mechanical stress applications with good…

Cons:
– Manufacturing process is complex and time-consuming, making it more expensive th…
– Handling requires extra care due to sharp edges that can cause insulation damage…
– Less flexible than round wires and cannot be bent in all directions, which can l…

High Quality Flat / Rectangular Magnet Wire 220 Degree …

Product Details: The high-quality flat rectangular magnet wire is made from copper and coated with a 220-degree enamel insulation. It features a flat rectangular shape, typically with dimensions such as 2.0mm in width and 0.15mm in thickness. The enamel coating is made from materials like amide imide, providing high thermal resistance up to 220°C. The wire is suitable for high-temperature electrical applications, including motors and transformers. It has excellent electrical insulation properties, high breakdown voltage, and good flexibility and adherence[2][3][4].

Pros:
– High temperature resistance up to 220°C, making it ideal for applications where…
– Excellent electrical insulation properties and high breakdown voltage to prevent…
– Good flexibility and adherence, allowing it to be easily formed into various sha…
– High durability and resistance to corrosion, making it suitable for long-term us…

Cons:
– The enamel coating can be fragile and may crack or chip if not handled properly,…
– The insulation may wear away over time, leading to a degradation of the wire’s i…
– Not compatible with paints that have fast solvent volatilization and high viscos…
– Low resistance to sudden temperature changes, and the coating is highly flammabl…

Rectangular Copper Wire manufacturer, Buy good quality …

Product Details: Rectangular enamelled copper wire is manufactured with various insulation systems and temperature indexes. It has a cross-sectional area up to 80 mm², with thickness ranging from 1.3-8 mm and width from 2.0-16 mm. The wire is used extensively in transformers, motors for appliances, automotive motors, compressors, and other electrical devices. It complies with standards such as IEC 60317, IS 13730, and NEMA 1000[1][3][5].

Pros:
– High fill factor due to stackability, making the motor more compact
– Better power density and lower electrical resistance
– Improved heat dissipation due to larger surface area
– Supports automated winding and coil insertion
– Reduces overall machine size and limits centrifugal forces
– Better electrical efficiency and energy savings

Cons:
– Complex and costly manufacturing process
– Prone to insulation damage due to sharp edges
– Less flexible and more susceptible to breakage during bending
– Requires extra care in handling to avoid twisting
– Difficult to wind in some configurations due to its larger cross-sectional area

Establishing a Company to Manufacture Rectangular …

Product Details: Sumitomo Electric produces a variety of electronic and wiring products. For example, their SUMI-CARD™ Flexible Flat Cable is designed for high-density implementation and is thin, lightweight, and flexible, suitable for tight spaces. It has UL standards with voltage ratings of 30V to 300V and temperature ratings of 80 °C to 125 °C. Their Tab-Lead is a flexible flat cable for drawing electricity from lithium-ion batteries, with insulation that prevents heat deformation and is resistant to battery electrolytes. They also develop high-voltage interconnection wiring and connectors, battery wiring modules, and high-pressure junction boxes for battery packs in electric vehicles.

Pros:
– High-density implementation and space efficiency
– Thin, lightweight, and flexible design
– UL standards compliance for safety
– Excellent sealing reliability and resistance to battery electrolytes
– Compact size and high current capacity for battery packs
– Supports by-wire control even in vehicle power failure

Cons:
– Challenges related to manufacturability and cost for certain applications like s…
– Potential issues with water tree deterioration in flooded cable insulation
– Shortcomings in by-wire control if vehicle power source fails without backup

Rectangular Enameled Copper Wire

Rectangular Magnet Wire for Reactor

Product Details: Enameled wire consists of a conductor, typically made of copper or aluminum, coated with a thin layer of enamel insulation. The enamel is usually made from finely ground glass that fuses with the metal when heated. It is available in various diameters and insulation classes, such as Class B and Class F, with different temperature ratings and breakdown voltages.

Pros:
– High resistance to heat and abrasion
– Excellent electrical insulation and high breakdown voltage
– Versatile, flexible, and safe to use
– Long shelf life and durability
– Good heat dissipation performance and high magnetic field efficiency
– Easy to manufacture in different shapes and colors

Cons:
– May have higher cost compared to some other types of wire
– Requires careful handling to avoid damaging the enamel coating
– Limited solderability with certain enamel types
– Can be affected by environmental factors if not properly stored

China Rectangular Magnet Wire Suppliers & Manufacturers

Product Details: Rectangular magnet wire is made from copper or aluminum and is insulated with enamel coatings such as EI, AIW, or EIW. It is available in various sizes, with conductor thickness ranging from 0.04 to 1.8 mm and widths from 0.155 to 7.5 mm. The wire is used in applications like transformers, inductors, motors, sensors, and antennas, particularly in EV/HEV traction motors and photovoltaic power generation systems.

Pros:
– Compact design allowing for tighter and denser coil arrangements, reducing overa…
– Higher fill factor due to its rectangular cross-section, resulting in lower resi…
– Better heat dissipation due to its larger surface area compared to round wire, e…
– Customizable sizes to meet specific application requirements, making it versatil…

Cons:
– Lower packing density in electrical windings compared to round magnet wire, pote…
– Generally more challenging winding and termination process due to its flat shape…
– Potential for higher proximity effect in certain configurations, leading to non-…

Comparison Table

Frequently Asked Questions (FAQs)

What is a rectangular magnet wire and how is it used?

A rectangular magnet wire is a type of electric wire designed to convert electrical energy into magnetic energy. Unlike round wires, rectangular magnet wires can be wound tightly without gaps, making them ideal for reducing the size and increasing the output of motors, particularly in applications like automotive electrical components, industrial motors, and electric home appliances.

How are rectangular magnet wires manufactured?

The manufacturing process of rectangular magnet wires involves several key steps. First, the wire is drawn to the required conductor dimension and then annealed to restore its mechanical properties. Next, a liquid enamel is applied to the wire, which is then cured in an oven at high temperatures to create a solid insulating layer. This process is repeated until the desired insulation thickness is achieved. Finally, the wire is tested for surface imperfections and discontinuity of insulation before being wound onto spools.

Why are rectangular magnet wires preferred over round wires in some applications?

Rectangular magnet wires are preferred because they can be wound more tightly and efficiently than round wires, eliminating gaps and allowing for more compact motor designs. This increases the motor’s output and reduces its overall size, which is particularly beneficial in applications where space is limited, such as in electric and hybrid vehicles.

What are the quality standards for rectangular magnet wires produced in China?

Rectangular magnet wires produced in China, such as those by Tianjin Ruiyuan Electric Material Co., Ltd., adhere to international standards like UL, RoHS, IEC60317, JIS C 3202, and NEMA. These standards ensure the wires meet high quality and safety criteria, making them reliable for various industrial and automotive applications.

How do Chinese factories ensure the reliability and consistency of their rectangular magnet wires?

Chinese factories, such as Sumitomo Electric Wintec Magnet Wire (Changzhou) Co., Ltd., ensure reliability and consistency through rigorous testing and quality control measures. Each inch of the produced wire is tested for surface imperfections and insulation discontinuity. Additionally, the manufacturing process is highly automated and efficient, with modern machines that enhance productivity and environmental sustainability.