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Self-Adhesive Enameled Flat Copper/Aluminum Wire - High-Quality Factory & Suppliers in China for Transformers and Windings
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:
- 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)
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 (QQ/QQN & custom types)
Insulation Thickness – Thin Film
0.06 – 0.11 mm
Insulation Thickness – 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.
Frequently Asked Questions
What is the difference between QQ and QQN self-adhesive enameled flat wire?
Both QQ and QQN are Polyvinyl Acetal-based self-adhesive types rated at 120℃. QQN is the self-adhesive variant that forms strong bonds when activated by heat, making it ideal for coil windings that require fixation without external adhesives. QQ refers to the standard Polyvinyl Acetal insulation without the self-adhesive coating.
Can the self-adhesive coating be applied to insulation types other than QQ/QQN?
Yes. While QQ/QQN is the standard self-adhesive type, Hengte Electric offers custom self-adhesive coatings for other insulation categories including QZ (130℃), QZG (155℃), QZY (180℃), Q(ZY/XY) (200℃), and QXY (220℃), depending on the specific winding requirements.
What conductor materials are available for the self-adhesive enameled flat wire?
The wire is available in two conductor materials: high-quality oxygen-free copper and electrical-grade aluminum rod. Both materials comply with the GB5584 series standards, ensuring excellent electrical conductivity and mechanical stability.
What are the breakdown voltage ratings for this enameled flat wire?
The enameled flat wire meets two breakdown voltage grades: Grade 1 at 1000V and Grade 2 at 2000V. These ratings ensure reliable electrical safety and insulation integrity even after the self-adhesive bonding process.
What certifications does Hengte Electric's self-adhesive enameled flat wire hold?
Hengte Electric holds ISO9001:2015 quality management certification. The self-adhesive enameled flat wire products have also passed SGS, UL, and CE testing, with self-adhesive performance validated through strict adhesion tests to international standards.
What are the typical applications for self-adhesive enameled flat wire?
This wire is primarily used in applications requiring stable winding fixation without additional adhesives, including high-density transformers, precision reactors, and electronic coils. Its self-adhesive properties simplify assembly and improve production efficiency in these demanding electrical components.








