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Help CenterSolderable Polyurethane Enamelled Copper Wire Class 155 QA/155 (UEW/155)
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As an established manufacturer since 1970, Shandong Huilong Electrical Material delivers premium Solderable Polyurethane Enamelled Copper Wire Class 155 QA/155 (UEW/155) from our 20,000+ sqm facility. This high-performance magnet wire combines exceptional thermal stability with revolutionary solderability, eliminating stripping processes to accelerate your production efficiency. With annual exports exceeding $100 million to global markets, we ensure every spool meets stringent international standards.
Core Technical Advantages:
- Direct-Solder Technology - Fusion-bonded insulation allows tin-lead or lead-free soldering at 370-400°C within 2 seconds without pre-cleaning
- Thermal Endurance - Withstands continuous operation at 155°C and short-term peaks to 180°C
- Mechanical Resilience - Elastic insulation resists cracking during winding operations with elongation up to 35%
- Chemical Resistance - Impervious to moisture, transformers oils, and common solvents
Technical Specifications:
| Property | Standard Value | Test Method |
| Dielectric Strength | ≥ 6,000 VAC | IEC 60851-5 |
| Breakdown Voltage | ≥ 200% of nominal | ASTM D1676 |
| Insulation Resistance | 10,000 MΩ/km min | IEC 60851-3 |
| Thermal Shock Resistance | No cracking at 3d elongation | IEC 60851-6 |
Industrial applications benefit from reduced assembly time by 40% compared to conventional wires, while the uniform insulation thickness (±0.002mm) ensures consistent performance in precision components. Our wire maintains dimensional stability across temperature fluctuations, preventing short circuits in densely wound configurations.
Backed by 50+ years of manufacturing expertise and ISO 9001/14000 certified processes, we guarantee batch-to-batch consistency through automated optical inspection. With direct shipments from Qingdao/Shanghai/Ningbo ports and distribution networks across 6 continents, we deliver to OEMs in automotive, aerospace, and energy sectors. Request samples today to experience how our Class 155 wire enhances your product reliability while reducing labor costs.
Frequently Asked Questions:
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Q: What is the shelf life of UEW-155 wire?
A: Minimum 24 months when stored below 35°C in original packaging away from direct sunlight. -
Q: Can this wire withstand automatic winding machines?
A: Yes, the abrasion-resistant coating survives winding tensions up to 300g without insulation damage. -
Q: Is it compatible with impregnation varnishes?
A: Fully compatible with epoxy, polyester, and polyurethane varnishes for vacuum pressure impregnation. -
Q: What minimum order quantities apply?
A: Standard MOQ is 50kg per diameter, with smaller trial orders available. -
Q: How is diameter tolerance controlled?
A: Laser micrometers maintain ±0.001mm tolerance during production with SPC monitoring. -
Q: Can I get custom thermal endurance testing?
A: Yes, we provide optional 5,000-hour thermal aging reports per IEC 60216 standards.
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