0102030405
Self-Adhesive Enameled Flat Copper/Aluminum Wire from China Suppliers | Quality Factory Products for Transformers and 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 |
| 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.
ISO9001:2015
SGS Tested
UL Certified
CE Certified
Frequently Asked Questions
Q
What is self-adhesive enameled flat wire and how does the self-adhesive layer work?
Self-adhesive enameled flat wire is a type of magnet wire coated with both an insulating enamel and an outer self-adhesive layer. When the wound coil is heated (or treated with solvent in some cases), the self-adhesive coating activates and bonds the wire turns together, forming a rigid, self-supporting coil without the need for external varnish or adhesives. This simplifies the manufacturing process for transformers, reactors, and electronic coils.
Q
What temperature ratings are available for self-adhesive enameled flat wire?
The wire is available across a wide thermal range. The core self-adhesive type QQ/QQN is rated at 120℃. Other insulation categories — QZ (130℃), QZG (155℃), QZY (180℃), Q(ZY/XY) (200℃), and QXY (220℃) — can also be produced with a custom self-adhesive coating to suit higher-temperature application requirements.
Q
What conductor materials and dimensions are available?
The conductor is available in both high-quality oxygen-free copper and electrical-grade aluminum. Conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and conductor width (b) ranges from 2.00 mm to 16.00 mm, with a maximum width-to-thickness ratio of 20:1. Insulation is offered in thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm) options, and the self-adhesive layer is 0.03–0.06 mm thick.
Q
What quality certifications does the product hold?
Hengte Electric's self-adhesive enameled flat wire is manufactured under an ISO9001:2015 certified quality management system. Products have been independently tested and certified by SGS, UL, and CE, and self-adhesive performance is validated through strict adhesion testing protocols to ensure consistent bonding quality in every production batch.
Q
What are the main applications of self-adhesive enameled flat wire?
This wire is ideally suited for high-density transformers, precision reactors, and electronic coils where stable winding fixation is essential. The self-bonding feature eliminates the need for secondary impregnation processes, making it popular in applications where compact coil geometry, efficient heat dissipation, and reduced assembly time are critical requirements.
Q
What electrical safety standards does the insulation meet?
The insulation system meets Grade 1 (1000V) and Grade 2 (2000V) breakdown voltage standards, ensuring robust electrical safety even after the self-adhesive bonding process is activated. Conductors conform to the GB5584 series standards, guaranteeing reliable conductivity and long-term mechanical stability in demanding winding environments.