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Help CenterPremium Enameled Copper Clad Aluminum Wire for Motor and Transformer Winding
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Since 1970, Shandong Huilong Electrical Material Co., Ltd. has leveraged our 10,000-30,000 sqm manufacturing facility to produce premium enameled copper clad aluminum (CCA) wires specifically engineered for demanding motor and transformer applications. Combining copper's conductivity with aluminum's lightweight economy, our wires deliver exceptional performance while reducing overall system weight by up to 40% compared to pure copper alternatives.
Core Technical Advantages:
- Optimized Conductivity: Copper cladding (typically 10-15% by volume) provides surface conductivity comparable to copper at critical connection points
- Thermal Resilience: Class 180 enamel insulation withstands continuous operating temperatures up to 180°C
- Mechanical Durability: Withstands >20 bends at 2x diameter without cracking (ASTM B193 testing)
- Corrosion Resistance: Aluminum core with oxygen barrier protection prevents oxidation degradation
Performance Specifications:
| Parameter | Standard Value | Testing Standard |
|---|---|---|
| DC Resistance | 1.5-2.5x pure copper (varies by diameter) | IEC 60317 |
| Dielectric Strength | ≥6kV (0.1-0.5mm wire) | ASTM D149 |
| Elongation | ≥15% (typical) | ASTM B557 |
Manufactured under ISO9001 and ISO14000 certified processes, our CCA wires provide OEMs with significant cost savings in high-volume winding applications. The thermal expansion coefficient closely matches laminated steel cores, reducing mechanical stress during temperature cycling. With over US$100 million in annual exports shipped from Qingdao/Shanghai/Ningbo ports to 14 global markets, we ensure consistent quality through automated optical diameter measurement and 100% spark testing.
Frequently Asked Questions:
Q: How does CCA wire compare to pure copper in transformer applications?
A: While conductivity is lower, CCA provides 60-70% cost reduction and 40% weight savings, making it ideal where space/weight constraints exist.
Q: What thermal class certifications do you offer?
A: Our standard product meets Class 180 (H) requirements, with optional higher ratings available upon request.
Q: Can you provide custom diameters outside the standard range?
A: Yes, our manufacturing capabilities include diameters from 0.08mm to 6.0mm with ±0.005mm tolerance.
Q: What packaging options are available?
A: Standard packaging includes 5-50kg spools with wooden reels. Custom packaging solutions can be developed.
Q: Do you offer different enamel types?
A: Polyesterimide (PEI) is standard, with polyurethane (PU) and polyamide-imide (PAI) options for specialized applications.
Q: What's your minimum order quantity?
A: MOQ is 500kg for standard specifications, with sample quantities available for testing.
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