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Help CenterHeat-Resistant Enamelled Wire for High-Temperature Electrical Environments
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Manufactured by Shandong Huilong Electrical Material Co., Ltd. since 1970, our heat-resistant enamelled wire delivers exceptional performance in demanding electrical environments. With over 50 years of expertise in producing specialized wiring solutions, we supply industries worldwide from our 20,000+ sqm facility in China. This premium-grade wire maintains insulation integrity at sustained temperatures exceeding 180°C, significantly extending equipment service life in high-heat applications.
Unlike conventional enamelled wires, our specialized formulation incorporates advanced polymer resins that provide superior thermal endurance without compromising electrical properties. The precise enamel coating ensures uniform thickness with minimal tolerance variations, critical for high-frequency applications where skin effect matters. Backed by rigorous quality control across our ISO-certified manufacturing process, each batch guarantees consistent performance even under thermal cycling stress.
Core Technical Advantages:
- Maintains dielectric strength at temperatures up to 220°C
- Resists thermal degradation 3× longer than Class B insulation
- Minimal coating pinholes (≤3 defects per 30m length)
- Excellent chemical resistance to oils and solvents
- Low dielectric loss characteristics at high frequencies
Key performance specifications:
| Parameter | Standard Value | Testing Standard |
|---|---|---|
| Thermal Endurance | 20,000+ hours @ 180°C | IEC 60172 |
| Elongation at Break | ≥25% | ASTM D2518 |
| Dielectric Strength | ≥8 kV/mm | IEC 60851-5 |
| Resistance to Heat Shock | No cracks after 1hr @ 200°C | NEMA MW1000 |
This specialized wire enables significant operational benefits including reduced equipment failure rates in high-heat environments, extended maintenance intervals for industrial motors, and improved energy efficiency due to lower thermal resistance. For electric vehicle manufacturers, it allows more compact motor designs by supporting higher current densities without overheating concerns.
Frequently Asked Questions:
Q: What maximum continuous temperature can this wire withstand?
A: Our standard thermal class rating is Class H (180°C), with optional formulations available for 200°C+ continuous operation depending on application requirements.
Q: Are custom diameter specifications available?
A: Yes, we produce diameters from 0.1mm to 5.0mm with tolerance control within ±0.005mm. Custom orders require minimum quantities.
Q: What packaging options do you offer?
A: Standard packaging includes 5kg-50kg spools. We provide reel-less packaging for automated production lines and custom palletization for bulk shipments.
Q: How do you ensure batch-to-batch consistency?
A: Our ISO 9001-certified quality system includes automated optical coating measurement, continuous thermal aging tests, and traceability through production records.
Q: What solvents are compatible with your wire insulation?
A: The insulation resists common industrial solvents including acetone, ethanol, and transformer oils. Compatibility charts available upon request.
Q: Do you provide technical support for winding applications?
A: Our engineering team offers application guidance on tension settings, temperature profiles, and compatibility with impregnation resins.
With above $100 million in annual exports and presence across six continents including North America, Europe and Southeast Asia, Shandong Huilong has delivered reliable electrical solutions since 1970. Our multiple ISO certifications and OHSAS 18001 compliance ensure responsible manufacturing practices. Choose our heat-resistant enamelled wire to achieve up to 30% longer service life in high-temperature applications compared to standard alternatives. Contact us today for technical specifications or volume pricing through Qingdao, Shanghai or Ningbo ports.
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