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Established in 1970, Shandong Huilong Electrical Material Co., Ltd. manufactures precision enameled copper magnet wires meeting rigorous defense industry requirements. With over 50 years of expertise in electrical materials, our 10,000-30,000 sqm facility produces magnet wires that ensure signal integrity and reliability in mission-critical applications. We've served defense contractors across 14 global markets including North America and Western Europe, with annual exports exceeding $100 million.
Our defense-grade magnet wire features:
- Micro-precision tolerances (±0.001mm) for high-frequency applications
- Uniform insulation coating preventing current leakage even at 0.05mm diameters
- Customizable thermal resilience from -40°C to +220°C operational range
- Chemical resistance against solvents, fuels, and humidity
Technical specifications include:
| Parameter | Specification |
|---|---|
| Breakdown Voltage | ≥8kV/mm insulation strength |
| Elongation Rate | 15-35% (adjustable per application) |
| Resistance Tolerance | ±2% at 20°C |
| Dielectric Constant | 3.0-3.5 at 1MHz frequency |
Key advantages for defense applications:
- Reduces electromagnetic interference in sensitive radar systems
- Maintains performance in extreme vibration environments
- Enables miniaturization of components for portable defense equipment
- Extends service life through superior thermal aging resistance
Manufactured in our ISO-certified facility with 51-100 skilled technicians, each batch undergoes:
- Dimensional verification with laser micrometers
- Continuity testing at 2x operational voltage
- Thermal cycling stress tests
- Adhesion strength validation
With certifications including ISO9001 and ISO14000, we've supplied defense projects through Qingdao/Shanghai/Ningbo ports for decades. Our 100+ global clients benefit from customizable solutions—whether for UAV guidance systems or encrypted communication devices. Contact us to discuss how our AS9100-compliant manufacturing process can enhance your defense electronics reliability.
Frequently Asked Questions
Q: What insulation materials do you offer for defense applications?
A: We provide polyester-imide for thermal endurance, polyurethane for solderability, and polyimide for extreme environments. Material selection depends on operational parameters.
Q: Can I order samples before bulk production?
A: Yes, sample spools (100-500g) are available for qualification testing within 7 working days.
Q: How do you ensure consistency in sub-0.1mm wires?
A: Our laser-guided drawing process maintains ±0.5% diameter tolerance, with automated optical inspection every 500 meters.
Q: What packaging protects wires during long shipments?
A: We use moisture-barrier vacuum sealing with shock-absorbent spool cores. Custom crating solutions are available.
Q: Do you provide temperature-resistance documentation?
A: Yes, we supply test reports showing thermal aging performance at 10,000+ hours for critical applications.
Q: Can you meet MIL-W-81381 specifications?
A> Our wires exceed most military standards. Provide your exact requirements for compatibility confirmation.
Q: What's your lead time for custom diameters?
A: Standard gauges ship in 2-3 weeks. Custom diameters (e.g., 0.07mm) require 4-5 weeks for tooling setup.
Q: How do you prevent oxidation in fine wires?
A: We use nitrogen-flushed packaging and antioxidant-enriched enamel formulations for corrosion resistance.
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