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Self-Adhesive Enameled Flat Copper/Aluminum Wire from China Suppliers - Durable Factory Manufacturing 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:
- 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 (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.
Frequently Asked Questions
What is self-adhesive enameled flat wire and how does it work?
Self-adhesive enameled flat wire is a type of magnet wire coated with both an insulating enamel layer and an outer self-adhesive layer. When heated (or with solvent activation in some types), the adhesive layer bonds adjacent wire turns together, eliminating the need for external adhesives during winding assembly. This is especially useful in high-density transformers, precision reactors, and electronic coils.
What conductor materials are available for this 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 GB5584 series standards, providing excellent electrical conductivity and mechanical strength suitable for a wide range of winding applications.
Which insulation grade should I choose for my application?
The choice depends on the operating temperature of your application. For general-purpose uses up to 120°C, QQ/QQN (Polyvinyl Acetal) is recommended. For higher thermal demands, options range from QZ (130°C) and QZG (155°C) up to QXY (220°C, Polyamide Imide). Custom self-adhesive coatings can also be applied to QZ, QZG, QZY, Q(ZY/XY), and QXY types upon request.
What conductor dimensions and insulation thicknesses are available?
Conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and conductor width (b) from 2.00 mm to 16.00 mm, with a maximum width ratio of 20:1. The self-adhesive layer thickness is 0.03–0.06 mm for QQ/QQN and custom types. Insulation thickness options include thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm).
What voltage ratings do these wires support, and are they safety certified?
The breakdown voltage meets Grade 1 (1000V) and Grade 2 (2000V) standards, ensuring reliable electrical safety even after adhesion activation. Hengte Electric holds ISO9001:2015 certification, and the products have passed SGS, UL, and CE testing, with self-adhesive performance further validated through strict adhesion tests.
Can I order custom self-adhesive coatings for non-standard insulation types?
Yes. While QQ/QQN is the standard self-adhesive type, Hengte Electric offers custom self-adhesive coatings for all other insulation categories — including QZ, QZG, QZY, Q(ZY/XY), and QXY — to accommodate specific application requirements. Contact the manufacturer directly to discuss your custom winding specifications.