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Customizable Enameled Flat Wire for Electrical Equipment from China Suppliers | Quality Factory Products
Product Information
Designed for versatility, this enameled flat wire is fabricated from high-purity oxygen-free copper or electrical aluminum rod, processed by drawing and extrusion with molds tailored to specific dimensions. It is widely used in the windings of various electrical equipment, including power transformers, distribution reactors, and electronic inverters, providing reliable insulation and conductive performance.
Based on the type of insulating paint, it is divided into six categories to cover different application scenarios:
- QQ / QQN120℃ Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal Enameled Flat Wire
- QZ130℃ Polyester Enameled Flat Wire
- QZG155℃ Modified Polyester Enameled Flat Wire
- QZY180℃ Polyester Imide Enameled Flat Wire
- Q(ZY/XY)200℃ Polyester Imide / Polyamide-Imide Composite Enameled Flat Wire
- QXY220℃ Polyamide Imide Enameled Flat Wire
Flexible Production Specifications
| Parameter | Specification |
|---|---|
| Conductor Thickness (a) | 0.80 – 5.60 mm (adjustable to customer needs) |
| Conductor Width (b) | 2.00 – 16.00 mm (supports custom width ratios) |
| Insulation Thickness | Thin film: 0.06 – 0.11 mm | Thick film: 0.12 – 0.17 mm |
| Self-adhesive Layer (QQ/QQN) | 0.03 – 0.06 mm |
Detail Shot
Material & Performance Assurance
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Copper conductors meet GB5584.2-2009 standards, ensuring low resistivity (≤0.017241 Ω·mm²/m at 20℃) and excellent conductivity.
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Aluminum conductors comply with GB5584.3-2009, with resistivity ≤0.02801 Ω·mm²/m at 20℃, balancing cost and performance.
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Each insulation category adheres to international standards (GB/T 7095 series, IEC 60317) and passes strict tests (GB/T 4074, IEC 60851) for breakdown voltage, scratch resistance, and solvent resistance.
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Hengte Electric, an ISO9001:2015 certified manufacturer, offers full customization based on customer technical drawings or specifications. Whether you need specific thermal grades, conductor dimensions, or insulation properties, we can tailor the product to your exact requirements.
ISO 9001:2015
SGS
UL
CE
IEC 60317
GB/T 7095
Frequently Asked Questions
Q
What types of enameled flat wire does Hengte Electric offer, and how do I choose the right thermal grade?
Hengte Electric offers six insulation categories ranging from 120℃ (QQ/QQN) to 220℃ (QXY). The choice depends on your application's operating temperature. For standard power transformers, QZ (130℃) or QZG (155℃) is typically sufficient, while high-performance inverters or motors may require QZY (180℃) or higher grades.
Q
Can the conductor dimensions be customized to match our specific design requirements?
Yes. Conductor thickness can be adjusted from 0.80 mm to 5.60 mm, and conductor width from 2.00 mm to 16.00 mm. Insulation thickness is also selectable (thin film or thick film). Simply provide your technical drawings or specifications and our team will produce wire tailored to your exact dimensions.
Q
What is the difference between copper and aluminum conductor enameled flat wire?
Copper conductors (GB5584.2-2009) offer lower resistivity (≤0.017241 Ω·mm²/m at 20℃) and superior conductivity, making them ideal for high-efficiency applications. Aluminum conductors (GB5584.3-2009) have a slightly higher resistivity (≤0.02801 Ω·mm²/m at 20℃) but are significantly lighter and more cost-effective, suitable for applications where weight and budget are key considerations.
Q
What international certifications and quality standards does this enameled flat wire comply with?
All products comply with GB/T 7095 series and IEC 60317 international standards. Quality testing follows GB/T 4074 and IEC 60851 protocols, covering breakdown voltage, scratch resistance, and solvent resistance. Hengte Electric holds ISO9001:2015 certification, and products have obtained SGS, UL, and CE certifications.
Q
What are the typical applications for enameled flat wire?
Enameled flat wire is primarily used in the windings of electrical equipment such as power transformers, distribution reactors, and electronic inverters. Its flat profile allows for higher fill factors and more compact coil designs compared to round wire, making it especially valuable in high-power, space-constrained applications.
Q
What is the self-adhesive layer on QQ/QQN wire, and what benefit does it provide?
The self-adhesive layer (0.03–0.06 mm thick) on QQ/QQN enameled flat wire is a thermally activated bonding coating. When heated, adjacent wire turns bond together to form a rigid, self-supporting coil without the need for additional adhesives or bobbins. This simplifies manufacturing, improves mechanical stability, and is ideal for air-core coils and compact winding assemblies.