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Help CenterCopper Enameled Wire With 10-Year Oxidation Resistance Warranty
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As a specialized manufacturer since 1970, Shandong Huilong Electrical Material leverages 50+ years of expertise to deliver premium copper enameled wire engineered for extreme durability. Our ISO-certified production processes in Shandong-based facilities ensure consistent quality across every meter of wire, backed by an unprecedented 10-year oxidation resistance warranty that guarantees long-term performance stability in demanding applications.
Core Technical Advantages:
- Advanced Enamel Formulation: Triple-layer coating technology creates an impermeable barrier against moisture, chemicals and atmospheric corrosion
- Thermal Endurance: Stable performance across -40°C to +220°C operational range with minimal dielectric loss
- Precision Engineering: Tolerances maintained within ±0.002mm through automated drawing processes
Performance Specifications Table
| Parameter | Standard Value | Test Method |
| Dielectric Strength | ≥ 7000 VAC | IEC 60851.5 |
| Elongation at Break | ≥ 30% | ASTM B193 |
| Thermal Shock Resistance | No cracking after 5 cycles | IEC 60317 |
| Adhesion Class | Level 1 (excellent) | NEMA MW1000 |
The proprietary manufacturing process involves 17 quality checkpoints, including ultrasonic cleaning before enameling and automated optical inspection. This ensures uniform coating thickness and eliminates micro-pinholes that compromise oxidation resistance. Applications benefit from reduced downtime and maintenance costs across:
- HVAC compressor motors
- Electric vehicle traction systems
- High-frequency transformers
- Industrial automation equipment
Supported by our $100M+ annual export infrastructure across Qingdao, Shanghai and Ningbo ports, we guarantee on-time delivery to 15+ global markets. Our 10,000-30,000 m² production facility maintains TS16949-certified processes specifically developed for high-reliability magnet wire. Choose confidence in every coil with our oxidation warranty - contact our technical team today for application-specific solutions.
Frequently Asked Questions
Q: How does the 10-year warranty apply in humid environments?
A: The warranty covers oxidative degradation in environments with ≤95% relative humidity at ≤40°C when used within rated specifications.
Q: What documentation supports certification claims?
A: We provide material certification sheets with traceable heat numbers and compliance statements for ISO9001, ISO14000 and TS16949.
Q: Can I request custom thermal class specifications?
A: Yes, we offer Class 155 (F), 180 (H) and 220 (C) variants with modified enamel formulations upon request.
Q: What packaging options prevent transit damage?
A: Standard options include moisture-barrier bags with desiccant, reinforced carton spools, and wooden crates for ocean shipments.
Q: Do you provide sample reels for testing?
A: We offer 100m sample coils with full material documentation for qualification testing.
Q: How does this compare to aluminum enameled wire?
A: Our copper wire provides 40% higher conductivity and superior fatigue resistance, justifying longer service life in dynamic applications.
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