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Help CenterEnamelled Round Copper Wire 0.3mm to 2.0mm Thermal Class 200 for Windings
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As an established manufacturer since 1970, Shandong Huilong Electrical Material leverages its 10,000-30,000 sqm facility to produce premium enamelled round copper wire specifically engineered for demanding winding applications. Our Class 200 wires deliver exceptional thermal stability and electrical performance, enabling clients to enhance motor efficiency while reducing operational failures.
Core Technical Advantages:
- Temperature Resilience: Withstands continuous 220°C operation without insulation degradation
- Precision Dimensions: Tight tolerance control (±0.005mm) ensures consistent winding density
- Dielectric Strength: Minimum breakdown voltage of 8kV for enhanced safety
- Flexibility: Elastic elongation up to 35% prevents cracking during winding processes
- Chemical Resistance: Polyester-imide coating resists oils, solvents and moisture
Key technical specifications across standard diameters:
| Diameter (mm) | Max. Resistance (Ω/km) | Film Thickness (μm) | Breakdown Voltage |
|---|---|---|---|
| 0.3 | 245.0 | 12-18 | ≥3.5kV |
| 1.0 | 22.1 | 20-26 | ≥6.0kV |
| 2.0 | 5.52 | 28-35 | ≥8.0kV |
These specifications translate to tangible operational benefits:
- 15-20% longer service life in high-temperature environments
- Reduced eddy current losses through uniform enamel coating
- Compatibility with automatic winding machines (tensile strength ≥120N/mm²)
- Minimal corona discharge at high frequencies
Trusted by clients across 14 global markets including North America and Western Europe, our $100M+ annual export volume reflects consistent quality validated by ISO9001 and OHSAS18001 certifications. With dedicated logistics through Qingdao/Shanghai ports and 51-100 skilled technicians ensuring precision manufacturing, we deliver wires that maintain dimensional stability across temperature fluctuations - a critical advantage for EV motors and industrial generators. Contact us for technical datasheets or custom diameter requests.
Frequently Asked Questions:
-
Q: What defines Thermal Class 200?
A: Indicates 20,000-hour lifespan at 220°C based on IEC 60317 standards. -
Q: Minimum order quantity?
A: Standard MOQ is 50kg, with sample reels available. -
Q: Lead time for European shipments?
A: 25-35 days FOB from Qingdao port. -
Q: Chemical compatibility?
A: Resists transformer oils, refrigerants and mild acids. -
Q: Custom diameter availability?
A: Special sizes between 0.3-2.0mm achievable. -
Q: Packaging options?
A: Plastic-spooled or bulk carton packaging.
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