Are you looking for the best varnished copper wire factories in China? If so, you’re in the right place. China is home to a plethora of top-notch manufacturers that specialize in producing high-quality varnished copper wires. Let’s dive into the top contenders and see what sets them apart. From YUHENG, known for its durable copper-clad and aluminum-clad wires, to SWAN, a leading enameled copper wire manufacturer with customizable insulation options, each of these

China Enamelled Copper Wire & Rectangular …

Product Details: Ultrafine copper wire is made from high purity copper with excellent electrical and thermal conductivity. It is available in very thin diameters (e.g., 0.025mm to 0.05mm) and is used in precise applications such as microelectronics, medical devices, internal wiring for smartphones and personal computers, and medical fields for devices like stomach cameras and endoscope cables. The wire can be bare annealed copper, oxygen-free copper, or alloy wires with various platings like tin, nickel, or silver[1][3][5].

Pros:
– High electrical and thermal conductivity, making it ideal for applications requi…
– High ductility and malleability, allowing it to be shaped and bent without break…
– Good corrosion resistance, reducing the risk of deterioration and failure, espec…
– High heat resistance with a high melting point, ensuring longevity in various ap…
– 100% recyclable, contributing to sustainable practices[4].

Cons:
– Cannot control electrical surges effectively, which can be a drawback in applica…
– Produces electromagnetic interference (EMI), which can impact signal stability a…
– More expensive than alternatives like aluminum, making large-scale installations…
– Relatively heavy, which can be a challenge in installations where weight is a co…
– Vulnerable to oxidation over time, which can affect its appearance and conductiv…
– High value makes it a target for theft, particularly in construction sites and u…

Professional Enameled Wire Manufacturer In China

Product Details: Enameled Flat Copper Wire with flat wire thickness ranging from 0.80-5.60mm and width from 2.00-16.00mm. The width/thickness ratio is between 1.4 and 8.0. The conductor is made of enamelled copper wire. Thermal classes include 180°C, 200°C, and 220°C. Standards comply with IEC 60317-16, 60317-16/28, MW36 60317-29, BS6811, MW18 60317-18, and MW20 60317-47. The wire is used for applications such as transformers, motors, photovoltaic inverters, and various electrical equipment. It is packaged on wooden spools, plastic spools, or as per customer requirements.

Pros:
– Excellent bending property
– High flexibility of the enamel
– Good resistance to abrasion
– High mechanical property
– Higher thermal property
– Good resistance to refrigerant and freon
– Suitable for windings subjected to high temperature and mechanical stress
– Good chemical resistance
– Outstanding mechanical and chemical properties

Cons:
– Increased sensitivity and lower voltage
– Low resistance to temperature changes
– Not compatible with paints having fast solvent volatilization and high viscosity
– Thicker enamel can make soldering more difficult

China Enameled Wire Manufacturer …

Product Details: Zhengzhou LP Industry Co., Ltd. produces enameled wire, including transformer and motor enameled wire/foils. The wire is available in various materials such as aluminum and copper, with dimensions ranging from 0.020mm to 5mm. The thermal classes include 155°C, 200°C, and 220°C. Insulation types include polyurethane, polyamide, and polyester. The wire can be round or flat/rectangular and is certified by UL, complying with international standards like IEC, NEMA, JIS, and GB. Applications include dry type transformers, motors, generators, and other electrical components.

Pros:
– High durability and long shelf life
– Excellent thermal and electrical conductivity
– Good electrical insulation properties and protection against corrosion
– Flexible and can be molded into different shapes and forms
– Low price and cost-effective
– High voltage breakdown and effective for miniaturizing transformer and coil size…

Cons:
– Low resistance to temperature changes, making the coating not resistant to heat…
– Not compatible with paints having fast solvent volatilization and high viscosity
– Increased sensitivity and lower voltage compared to other types of wires

Enamelled Copper Flat Wire

Product Details: Magnet wire is an insulated electrical conductor, typically made of copper or aluminum, used to wind motors, transformers, generators, and other electrical devices. It is insulated with materials such as varnish (enamel), polyester glass, mica, or polyimide tape. The insulation provides electrical and mechanical properties to the wire.

Pros:
– Copper magnet wire has high electrical conductivity and is durable[3][5].
– Aluminum magnet wire is lightweight, flexible, and cost-effective. It has good m…
– Aluminum magnet wire can withstand high temperatures and is often used in large…

Cons:
– Aluminum magnet wire has lower electrical conductivity compared to copper and re…
– Aluminum magnet wire is prone to breakage, has a limited service life, and can b…
– Historically, aluminum wiring has faced issues with fire hazards when terminated…

China Ultra Fine Enameled Copper Wire

Product Details: The Ultra Fine Enameled Copper Wire is produced in China and certified by IEC, NEMA, JIS, RoHS, and ISO standards. The wire is available in various sizes, with a diameter range of 0.012mm to 0.08mm and an AWG size of 55. It features 2UEW and 3UEW insulation types. The wire is self-bonding, has good solderability, and is packaged on spools with cartons. The minimum order quantity is 10 kilograms, with a supply ability of 200 tons per month and a delivery time of 2-15 working days.

Pros:
– Good solderability, reducing coil production costs by eliminating mechanical or…
– Superior ‘Q’ characteristic at high frequencies.
– Excellent film adhesion and flexibility.
– Extremely resistant to a variety of solvents, including most varnishes and harde…
– Good insulation, excellent conductivity, low electric resistance, and no noise.
– High durability and resistance to corrosion, making it suitable for long-term us…
– Versatile and can be shaped into various forms and sizes, suitable for different…

Cons:
– The enamel coating is not highly resistant to temperature changes and can be hig…
– Not compatible with paints that have fast solvent volatilization and high viscos…
– The enamel is thicker than bare copper, which can affect soldering properties.
– Sensitive to extreme temperatures, requiring high-quality products to ensure saf…

Enameled Copper Wire Manufacturers

Product Details: Enameled copper wire, also known as magnet wire, is a type of copper wire coated with an insulating enamel layer. It is available in various sizes, including flat and round shapes, with thicknesses ranging from 0.80mm to 5.60mm and widths from 2.00mm to 16.00mm. The wire is insulated with materials like polyester resin and modified amide imide resin, offering thermal classes up to 200°C. It is used in applications such as transformers, motors, generators, and other electrical equipment.

Pros:
– Excellent thermal stability and high temperature resistance
– Good electrical insulation properties and protection against corrosion
– High flexibility and ability to be formed into various shapes
– Resistance to abrasion and mechanical stresses
– Chemical resistance to common solvents and coolants
– Suitable for high-speed electrical systems with minimal maintenance
– Long shelf life and durability

Cons:
– Increased sensitivity and lower voltage compared to other wires
– Low resistance to temperature changes and potential flammability of the enamel c…
– Not compatible with paints having fast solvent volatilization and high viscosity
– Relatively expensive compared to alloy enameled wires
– May require careful handling to avoid damaging the enamel coating

Solid 0.045mm Ultrafine Copper Enameled Magnet Wire

Product Details: The 0.045mm Polyurethane Insulated Solderable Enameled Copper Magnet Wire features solid copper construction, ensuring durability and high conductivity. It has a polyurethane insulation, a thermal class of 155/180, and a breakdown voltage of 1043V. The wire is certified by ISO9001, ISO4001, UL, and SGS, and adheres to IEC, NEMA, and JIS standards. It is suitable for use in relays, transformers, motors, and various types of windings. The wire is available in reddish-brown, red, and black colors and is carefully packaged on plastic spools within wooden pallets and cases.

Pros:
– High conductivity and durability due to solid copper construction
– Excellent electrical isolation and flexibility thanks to polyurethane insulation
– High thermal class (155/180) and breakdown voltage (1043V)
– Easy solderability at low temperatures
– Compliance with multiple industry standards (ISO9001, ISO4001, UL, SGS, IEC, NEM…
– Good windability and minimal wire breaks
– Resistant to various solvents and hardener catalysts

Cons:
– Thicker enamel coating can make soldering slightly more challenging compared to…
– Requires careful temperature control during the curing process to avoid poor adh…
– May have aesthetic limitations if color options are not sufficient for specific…

JOGO Group China | High Quality Winding Wire

Product Details: Enameled round copper wire is made from electrolytic copper (Cu-ETP) with high purity (99.95%), allowing for the production of ultra fine wire down to a diameter of 10 microns. It is available in diameters from 0.010mm to 5.00mm (SWG5-40, AWG4-38) with various insulations such as Polyurethane, Polyester, Polyesterimide, and Polyimide. The wire meets production standards: IEC60317, NEMA MW1000/JIS C3202. It is used in applications including oil-immersed transformers, high and low voltage DC/AC motors, and magnet coils for aviation, military, and marine use. The wire has excellent thermal resistance and is suitable for equipment exposed to high working temperatures up to

220°C.

Pros:
– High purity electrolytic copper (Cu-ETP) for excellent electrical conductivity
– Available in a wide range of diameters (0.010mm to 5.00mm)
– Various insulation options (Polyurethane, Polyester, Polyesterimide, Polyimide)
– Excellent thermal resistance suitable for high temperature applications
– Meets international standards (IEC60317, NEMA MW1000/JIS C3202)
– Suitable for diverse applications including transformers and motors

Cons:
– No specific cons mentioned for enameled round copper wire on the website
– General considerations might include higher cost compared to aluminum wire and p…

Enameled copper winding wire – Jiangsu Yuheng

Product Details: Enameled copper winding wires are copper wires coated with a thin layer of insulating material, typically made from polyurethane, polyester, or other polymers. These wires are widely used in applications such as motors, transformers, generators, and various electronic equipment. They come in different gauges and thermal classes, with temperature ratings ranging from 105°C to 240°C. The insulation protects the wire from short circuits, abrasion, corrosion, and moisture.

Pros:
– High electrical conductivity and low resistivity, ensuring efficient current tra…
– High ductility and malleability, allowing for wires of varying thickness without…
– Low heat generation due to low resistance, making them operationally safer.
– Protection against short circuits, abrasion, and moisture due to the insulation…
– Environmentally friendly and recyclable, reducing the need for mining new copper…
– High thermal stability and mechanical strength, suitable for harsh environments.
– Wide application range, including transformers, motors, solenoids, and electroni…

Cons:
– The selection process can be complex due to the need to consider wire size, insu…
– Higher cost compared to some other types of wires, although the benefits often j…
– Requires careful handling to avoid damaging the insulation layer.

0.025mm UEW Ultra-fine Enameled Copper Wire – Ruiyuan …

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Varnished Copper Wire Factories in China

What is the process of producing varnished (enameled) copper wire in Chinese factories?

The process starts with annealing the bare copper wire to soften it and make it more malleable. Next, the wire is coated with a layer of liquid insulating varnish, which is then heated and cured in an oven. The varnish is polymerized at temperatures around 250-300°C, and this process is repeated to achieve the desired thickness. After cooling, an external lubricant is applied to improve handiness, and finally, the wire is wound into spools.

What quality standards do Chinese varnished copper wire factories adhere to?

Many Chinese varnished copper wire factories adhere to strict quality standards such as ISO 9001, ISO 14001, and IATF16949. These certifications ensure that the manufacturing processes meet international standards for quality, environmental management, and safety. This gives you confidence in the reliability and performance of the products.

How do Chinese factories ensure the durability and performance of their varnished copper wires?

To ensure durability and performance, Chinese factories carefully control the annealing and curing processes. Proper annealing prevents the copper from becoming brittle, while precise temperature control during curing ensures the varnish adheres well and maintains its mechanical and electrical properties. Additionally, applying an external lubricant enhances the wire’s handiness and reduces the risk of damage during use.

Can I trust the quality of copper wiring from Chinese manufacturers for critical applications?

While it’s true that you get what you pay for, many Chinese manufacturers produce high-quality copper wiring that meets or exceeds international standards. However, it’s crucial to choose suppliers with good reputations and relevant certifications. For critical applications, ensure the wire is specifically designed for your needs and follows the necessary standards.

What are the common applications of varnished copper wire produced in Chinese factories?

Varnished copper wire from Chinese factories is widely used in various applications, including the production of motors, transformers, generators, and other electrical equipment. It is also used in industrial and automotive sectors due to its high-temperature resistance and specific electrical properties. The wire is available in various gauges and types to suit different requirements.