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Self-Bonding Enamelled Copper Wire 0.3mm for Coil Winding Applications
Product Spotlights
Precision 0.3mm self-bonding wire enables adhesive-free coil bonding via thermal activation, reducing production steps. Features Class 155 thermal rating, >8kV dielectric strength, and IEC-compliant dimensions for reliable transformer/motor winding. Manufactured under ISO 9001/IATF 16949 with global shipping from Qingdao/Shanghai/Ningbo. Enhances coil reliability, heat dissipation, and miniaturization potential.
US$ 4.89
500 - 4999 Kilograms
US$ 4.85
≥5000 Kilograms
Key Specifications
Get Latest Price
Application:
Other, Coil winding for transformers & motors
Material:
High purity copper conductor
Diameter:
0.3mm ±0.005mm
Payment & Shipping
Payment Methods:
Port of Shipment:
QINGDAO/SHANGHAI/NINGBO/TIANJIN
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Coil winding for transformers & motors
Material
High purity copper conductor
Diameter
0.3mm ±0.005mm
Insulation Type
Self-bonding enamel coating
Bonding Method
Thermal fusion without adhesives
Temperature Class
Class 155 (F)
Standards
IEC 60317, NEMA MW 1000
Certifications
ISO 9001, ISO 14000, IATF 16949
Spool Weight (Standard)
1kg, 2kg, 5kg (customizable)
Color
Natural (transparent coating)
As a leading manufacturer since 1970, Shandong Huilong Electrical Material leverages 50+ years of expertise to deliver premium Self-Bonding Enamelled Copper Wire. Our state-of-the-art 30,000 sqm facility produces this 0.3mm wire specifically engineered for demanding coil winding applications, ensuring consistent performance in transformers, solenoids, and micromotors. With over $100M annual exports to global markets including North America, Europe, and Asia, we maintain rigorous quality control backed by ISO 9001, IATF 16949, and ISO 14000 certifications.
Core Technical Advantages:
- Automatic Fusion Bonding: The proprietary enamel coating chemically bonds adjacent turns under heat (typically 150-200°C), eliminating need for external adhesives and reducing production time by up to 30%.
- Precision Dimensional Control: Maintains strict 0.3mm ±0.005mm diameter tolerance for uniform coil stacking and optimal space factor.
- Superior Dielectric Strength: Withstands >8kV breakdown voltage (tested per IEC 60317-0-1), preventing inter-turn shorts in high-voltage applications.
- Thermal Endurance: Class 155 (F) rating ensures stable operation at continuous 155°C ambient temperature.
- Flexibility & Abrasion Resistance: Passes 30+ double rubs (ASTM D2519) while maintaining excellent bendability for tight winding radii.
Key Specifications:
| Parameter | Value | Test Standard |
|---|---|---|
| Conductor Resistance | ≤ 0.255 Ω/m | IEC 60851-3 |
| Elongation | ≥ 15% | IEC 60851-2 |
| Bond Strength | ≥ 1.5 N (after 5s @ 200°C) | IEC 61033 |
| Thermal Shock | No cracking (3 cycles @ 200°C) | IEC 60851-6 |
Client Benefits:
- Reduced Assembly Costs: Eliminates impregnation varnishes and curing steps.
- Enhanced Coil Reliability: Creates monolithic windings resistant to vibration-induced failures.
- Improved Heat Dissipation: Direct metal-to-metal contact increases thermal conductivity by 15-20% vs. adhesive-bonded coils.
- Miniaturization Enablement: Enables higher slot fill factors (up to 92%) for compact designs.
Trusted by OEMs across 4 continents, our self-bonding wire ships globally from Qingdao/Shanghai/Ningbo ports with flexible MOQs. Backed by a 100+ person technical team and IATF 16949 certified processes, we guarantee batch-to-batch consistency critical for automotive and industrial applications. Experience the Huilong advantage – contact us today for samples or custom spooling requirements.
Frequently Asked Questions (FAQ):
-
Q: What heating method is required for bonding?
A: Common methods include hot air guns (200-250°C), ovens, or pulsed current. Bonding occurs in 3-10 seconds depending on temperature. -
Q: Is this wire solderable?
A: Yes, the coating burns off cleanly at 370-400°C, allowing direct soldering without mechanical stripping. -
Q: What's the shelf life?
A: 24 months when stored below 35°C and 70% RH in original packaging. -
Q: Can I use it for high-frequency applications?
A: Absolutely. The thin, uniform enamel (approx. 10-12μm) provides excellent high-frequency performance with low dielectric loss. -
Q: Do you offer different diameters?
A: Yes, diameters from 0.05mm to 2.0mm are available upon request. -
Q: What's the minimum order quantity?
A: Standard MOQ is 50kg, but sample spools are available for testing. -
Q: Is it compatible with automated winding machines?
A: Yes, optimized surface slip properties ensure smooth feeding on high-speed winders up to 15,000 RPM.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
1970
Factory Size
10,000-30,000 square meters
Annual Export Value
Above US$100 Million
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