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Self-Adhesive Enameled Flat Copper/Aluminum Wire from China Suppliers - Factory Direct for Transformers & Coils
Product Information
Equipped with a reliable self-adhesive layer, this enameled flat wire is fabricated from high-quality oxygen-free copper or electrical aluminum rod, processed through drawing, extrusion, and special adhesive coating. It is designed for windings that require stable fixation without additional adhesives, such as high-density transformers, precision reactors, and electronic coils. Based on insulating paint and self-adhesive properties, it covers six core categories, including specialized self-adhesive variants:
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QQ/QQN (120℃): Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal – core self-adhesive type with reinforced adhesion via heating
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QZ (130℃): Polyester – non-self-adhesive base type (optional self-adhesive coating)
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QZG (155℃): Modified Polyester – non-self-adhesive (custom self-adhesive available)
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QZY (180℃): Polyester Imide – non-self-adhesive (custom self-adhesive available)
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Q(ZY/XY) (200℃): Composite Layer – non-self-adhesive (custom self-adhesive available)
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QXY (220℃): Polyamide Imide – non-self-adhesive (custom self-adhesive available)
Key Specifications
| Conductor thickness (a) | 0.80 – 5.60 mm |
| Conductor width (b) | 2.00 – 16.00 mm |
| Conductor width ratio | 20:1 |
| Self-adhesive layer thickness | 0.03 – 0.06 mm (for QQ/QQN and custom types) |
| Insulation thickness | Thin film: 0.06 – 0.11 mm | Thick film: 0.12 – 0.17 mm |
Detail Shot
Self-Adhesive & Performance Advantages
- 🔥 Self-adhesive layer (QQ/QQN) forms strong bonds when heated, simplifying winding assembly and reducing production time.
- ⚡ Conductors (copper/aluminum) comply with GB5584 series standards, ensuring excellent conductivity and mechanical stability.
- 🛡️ Insulation layers retain their original properties (e.g., heat resistance, solvent resistance) while adding adhesion functionality.
- ✅ Breakdown voltage meets Grade 1 (1000V) and Grade 2 (2000V) standards, ensuring electrical safety after adhesion.
- 🏭 Hengte Electric is a professional manufacturer of self-adhesive enameled wires, holding ISO9001:2015 certification. Products have passed SGS, UL, and CE tests, with self-adhesive performance validated by strict adhesion tests. We offer both standard self-adhesive QQ/QQN and custom self-adhesive coatings for other insulation categories to meet specific winding requirements.
🏅 ISO9001:2015
🏅 SGS Certified
🏅 UL Listed
🏅 CE Certified
Frequently Asked Questions
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What is self-adhesive enameled flat wire and how does it differ from regular enameled wire?
Self-adhesive enameled flat wire features an additional self-adhesive layer on top of the standard insulation coating. When heat or solvent is applied, this layer activates and bonds the wire turns together, eliminating the need for external adhesives or impregnation processes. Regular enameled wire lacks this bonding layer and requires additional steps to secure winding structures.
Q
What temperature ratings are available for self-adhesive enameled flat wire?
The wire is available across multiple thermal classes: 120℃ (QQ/QQN – Polyvinyl Acetal), 130℃ (QZ – Polyester), 155℃ (QZG – Modified Polyester), 180℃ (QZY – Polyester Imide), 200℃ (Q(ZY/XY) – Composite Layer), and 220℃ (QXY – Polyamide Imide). Custom self-adhesive coatings can be applied to most of these grades on request.
Q
What conductor materials are used, and what standards do they comply with?
Both high-quality oxygen-free copper and electrical-grade aluminum rod are available as conductor materials. All conductors comply with the GB5584 series standards, guaranteeing superior electrical conductivity and long-term mechanical stability in demanding winding applications.
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What are the typical applications for self-adhesive enameled flat wire?
This wire is primarily used in applications requiring stable, self-supporting winding structures without external adhesives. Typical use cases include high-density transformers, precision reactors, electronic coils, and other electromagnetic components where compact and reliable coil construction is critical.
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What certifications does the product hold?
Hengte Electric holds ISO9001:2015 quality management certification. The self-adhesive enameled flat wire products have also passed SGS, UL, and CE tests. Self-adhesive performance is validated through strict adhesion testing procedures, ensuring consistent quality and safety for international markets.
Q
Can the insulation thickness and self-adhesive coating be customized?
Yes. The insulation is available in thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm) options. The self-adhesive layer thickness ranges from 0.03 to 0.06 mm for standard QQ/QQN types. For other insulation grades (QZ, QZG, QZY, Q(ZY/XY), QXY), custom self-adhesive coatings can be applied to meet specific winding and application requirements.