Enameled Copper Wire (also known as Enamelled Copper Wire, Magnet Wire, or Winding Wire) is a premium electrical conductor consisting of a high-purity copper core uniformly coated with multiple layers of insulating enamel varnish. The manufacturing process involves annealing the copper wire followed by repeated precision coating and drying cycles, resulting in a smooth, durable, and highly reliable insulation layer that meets the most demanding electrical and thermal requirements.
As a leading enameled copper wire manufacturer, RLB delivers consistent quality, exceptional drawability, and outstanding performance for global customers in the electrical and electronics industries.
Key Features and Advantages
- Excellent Electrical Properties: High conductivity copper core combined with superior dielectric strength of the enamel coating
- Wide Thermal Resistance: Available in various thermal classes to withstand continuous operating temperatures from 130°C up to 200°C and beyond
- Superior Flexibility & Adhesion: The enamel layer offers excellent flexibility and strong adhesion to the copper substrate, ensuring reliable performance during high-speed winding
- Corona & Chemical Resistance: Specialized grades provide outstanding resistance to corona discharge, moisture, chemicals, and mechanical stress
- Direct Solderability: Certain types (such as QA) allow direct soldering without stripping the enamel, significantly simplifying assembly processes
Main Applications
Enameled copper wire is widely used in the production of:
- Refrigerator and air-conditioner compressors
- Special motors and high-efficiency electric motors
- Transformers, ballasts, relays, and degaussing coils
- Automotive electrical systems and charging equipment
- Household appliances, lighting fixtures, and various electromagnetic coils
Its versatility and reliability make it the preferred choice for manufacturers seeking long-term performance in compact, high-temperature, or high-frequency applications.
Diameter Range
- Standard Range: 0.05 mm – 6.00 mm
- Custom diameters and tolerances available upon request
Enameled Wire Types (Thermal Classes & Insulation Materials)
- Corona Resistance Enameled Copper Wire
- Polyester Enameled Copper Wire (PEW)
- Modified Polyester Enameled Copper Wire
- QZY Enameled Copper Wire (Polyester-imide)
- QA Copper Wire (Direct solderable, polyurethane-based)
- Polyester-imide / Polyamide-imide Composite Round Enameled Copper Wire (high-temperature class)
Each type is carefully engineered to meet specific thermal, mechanical, and electrical demands of modern electrical equipment.
| Parameter |
Specification |
Test Condition / Standard |
| Diameter Range |
0.05 mm – 6.00 mm |
Precision drawing |
| Thermal Classes |
130°C, 155°C, 180°C, 200°C |
UEWAL / EIWAL / E/AIWA |
| Enamel Types |
Polyurethane, Polyester-imide, Polyamide-imide composite |
High dielectric strength |
| Tensile Strength |
High |
Excellent flexibility |
| Elongation |
Excellent |
Smooth winding performance |
| Heat Resistance |
Up to 200°C continuous |
Long-term thermal stability |
| Insulation Properties |
Strong dielectric strength |
Chemical and environmental resistance |
| Spool Type |
High-quality plastic spools |
Easy feeding into automatic winding machines |
(Custom diameters, thermal classes, and enamel types available upon request.)
Packaging
Supplied on high-quality plastic spools (standard and custom sizes) for convenient storage, transportation, and automatic feeding into high-speed winding machines. Spools are designed to protect the wire from damage and maintain consistent tension during unwinding.
Enameled Copper Wire Manufacturer – RLB is committed to delivering premium-quality enamelled copper wire that meets international standards and exceeds customer expectations. Whether you require standard grades or specialized high-performance solutions, our advanced manufacturing processes and rigorous quality control ensure reliable, cost-effective performance for your most demanding applications.
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