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Self-Adhesive Enameled Flat Copper/Aluminum Wire - Quality China Suppliers & Manufacturer Factory for Transformers & Coils
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:
- QQ/QQN (120℃): Polyvinyl Acetal/Self-adhesive Polyvinyl Acetal – core self-adhesive type with reinforced adhesion via heating
- QZ (130℃): Polyester – non-self-adhesive base type (optional self-adhesive coating)
- QZG (155℃): Modified Polyester – non-self-adhesive (custom self-adhesive available)
- QZY (180℃): Polyester Imide – non-self-adhesive (custom self-adhesive available)
- Q(ZY/XY) (200℃): Composite Layer – non-self-adhesive (custom self-adhesive available)
- QXY (220℃): Polyamide Imide – non-self-adhesive (custom self-adhesive available)
| 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 |
| Insulation Thickness – Thick Film | 0.12 – 0.17 mm |
- 🔗 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.
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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.
Frequently Asked Questions
What is self-adhesive enameled flat wire and how does it differ from standard enameled wire?
Self-adhesive enameled flat wire features an additional self-adhesive coating on top of the standard insulation layer. When heated, this layer bonds the wire turns together without requiring external adhesives or varnish, making it ideal for applications like high-density transformers and precision coils where stable, compact winding is essential.
What temperature ratings are available for self-adhesive enameled flat wire?
The wire is available across a wide thermal range: QQ/QQN at 120℃, QZ at 130℃, QZG at 155℃, QZY at 180℃, Q(ZY/XY) at 200℃, and QXY at 220℃. The QQ/QQN type is the core self-adhesive variant, while other grades can be supplied with custom self-adhesive coatings upon request.
What conductor materials and sizes are available?
The wire is available in both high-quality oxygen-free copper and electrical-grade aluminum conductors. Conductor thickness ranges from 0.80 mm to 5.60 mm, and conductor width ranges from 2.00 mm to 16.00 mm, with a maximum width-to-thickness ratio of 20:1.
What insulation thickness options are offered?
Two insulation thickness grades are available: thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm). The self-adhesive layer itself adds an additional 0.03–0.06 mm for QQ/QQN and custom self-adhesive types, allowing precise dimensional control for your winding design.
What quality certifications does this product hold?
The self-adhesive enameled flat wire is manufactured under ISO9001:2015 quality management standards and has passed SGS, UL, and CE third-party testing. Breakdown voltage compliance is verified to Grade 1 (1000V) and Grade 2 (2000V), and self-adhesive performance is validated through rigorous adhesion testing.
Can I get a custom self-adhesive coating on insulation types other than QQ/QQN?
Yes. While QQ/QQN is the standard self-adhesive type, custom self-adhesive coatings can be applied to QZ, QZG, QZY, Q(ZY/XY), and QXY insulation categories. This allows you to combine the desired thermal class and insulation chemistry with self-bonding functionality to meet your specific winding requirements.