Tianjin Jingwei Power Technology Co., Ltd. : Your Trustworthy Enameled Round Wire Suppliers in China
Our company is a leading manufacturer specializing in the research, development, production, and sale of magnet wire. We produce over 50 types of magnet wire, including enameled wire, wrapped wire (mica wire, kraft paper wire, film wire, and fiberglass wire), PICC wire, CTC wire, and FTC wire, covering nearly the entire range of magnet wires for various applications.
Advanced Equipment
Jingwei Power boasts advanced wrapping machines that precisely control the wrapping overlap and are equipped with an online monitoring system.
Strong Production Capacity
Our annual production capacity exceeds 25,000 tons, covering both copper and aluminum wire.
Wide Market
In addition to serving the domestic Chinese market, our products are exported to Europe, Southeast Asia, the Middle East, Africa, the United States, and other regions.
Wide Applications
Our products are widely used in transformers, generators, motors, reactors, household appliances, electronics, communications, transportation, and other industries.

Enameled round wire is a single-strand wire coated with a thin layer of insulating enamel. Unlike regular insulated wire, the enamel is very thin, allowing tight winding while maintaining electrical isolation between turns.
Thin Insulation Layer
The enamel coating is very thin, allowing high-density winding without increasing coil size.
Excellent Electrical Insulation
Prevents short circuits between turns while maintaining a compact wire diameter.
High Thermal Resistance
Available in different temperature classes, ensuring safe operation under heat stress.
Mechanical Durability
Resistant to bending, vibration, and winding stress, reducing the risk of damage during assembly.
Consistent Electrical Performance
Uniform wire diameter and insulation ensure stable resistance, inductance, and overall reliability.
Product Specification
|
Product Name |
QZ-130 |
QZGB-155 |
QZ-180 |
Q(ZY/XY)-200 |
QY -240 |
|
Standard |
IEC60317-3 |
IEC60317-3 |
MW 30 |
MW 35 |
MW 16 |
|
Thermal Class |
130℃ |
155℃ |
180℃ |
200℃ |
240℃ |
|
Enamel Base Coat |
Polyester |
Modified Polyester |
Polyester-Imide |
Polyester-Imide |
Polyimide |
|
Enamel Top Coat |
- |
Polyamide-Imide |
|||
|
Cross Section Range |
0.2-6.5mm |
0.2-6.5mm |
0.2-6.5mm |
0.2-6.5mm |
0.2-6.5mm |
|
Range of insulation thickness |
IEC 60317-0-1 |
IEC 60317-0-1 |
IEC 60317-0-1 |
IEC 60317-0-1 |
IEC 60317-0-1 |
|
Heat shock |
155℃ |
175℃ |
200℃ |
220℃ |
300℃ |
Types of Enameled Round Wire
Polyurethane (PU) Enameled Wire
Flexible and thin enamel coating. Suitable for motors, transformers, and small coils.
Polyester (PET) Enameled Wire
Higher thermal resistance up to 155°C and good abrasion resistance. Ideal for industrial motors and high-temperature applications.
Polyimide (PI) Enameled Wire
Excellent heat resistance up to 200–240°C and chemical stability. Used in aerospace, automotive, and precision electronics.
Double-Coated Wire
Two layers of enamel for enhanced insulation and mechanical protection. Suitable for high-voltage and high-reliability applications.
Triple-Coated Wire
Three enamel layers for maximum insulation and durability. Perfect for extreme environments and high-performance motors.
High-Temperature Wire
Special enamel for temperatures above 220°C. Applied in high-power motors, heating equipment, and industrial machinery.
Customization
Conductor Material
Options include bare copper, tinned copper, or aluminum.
Wire Diameter
Diameter can be customized from 0.02 mm up to 5 mm (or per project requirement).
Insulation Type
Available in PU, PET, PI (Polyimide), or other enamel coatings.
Temperature Class
Customizable to match application requirements, from standard 105°C up to 240°C high-temperature classes.
Coating Layers
Single, double, or triple enamel coating options.
Coil Length & Form
Wires can be supplied in coils, spools, or cut-to-length pieces.
Certificate
Jingwei Power is certified to the latest issue of ISO 9001:2015 Quality System Certificate, ISO 14001:2015 Environment System Certificate, ISO 45001:2018 Occupation Health System Certificate, ISO 50001:2018 Energy System Certificate.


FAQ
As one of the most professional enameled round wire manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy enameled round wire for sale here from our factory.

