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Self-Adhesive Enameled Flat Copper/Aluminum Wire from China Suppliers - Quality Factory Products 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 | Thick film: 0.12 – 0.17 mm |
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Self-adhesive layer (QQ/QQN) forms strong bonds when heated, simplifying winding assembly and reducing production time.
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Conductors (copper/aluminum) comply with GB5584 series standards, ensuring excellent conductivity and mechanical stability.
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Insulation layers retain their original properties (e.g., heat resistance, solvent resistance) while adding adhesion functionality.
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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
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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 (such as QQ/QQN polyvinyl acetal) applied over the standard insulation layer. When heated, this coating activates and bonds adjacent windings together without requiring external adhesives or varnish, significantly simplifying the assembly process compared to conventional enameled wire.
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What temperature ratings are available for self-adhesive enameled flat wire?The product line covers a wide range of 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 are available for most categories.
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What conductor materials and dimensions are available?Conductors are available in high-quality oxygen-free copper or electrical-grade aluminum. Thickness (a) ranges from 0.80 mm to 5.60 mm, width (b) from 2.00 mm to 16.00 mm, with a maximum width-to-thickness ratio of 20:1, covering a broad range of winding design requirements.
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What applications are self-adhesive enameled flat wires best suited for?These wires are ideal for applications requiring stable coil fixation without additional adhesives, including high-density transformers, precision reactors, and electronic coils. The self-adhesive property ensures structural integrity of windings under vibration and thermal cycling.
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What quality certifications does this product hold?Hengte Electric's self-adhesive enameled flat wires are manufactured under ISO9001:2015 quality management standards. Products have been tested and certified by SGS, UL, and CE. Conductors comply with GB5584 series standards, and breakdown voltage meets both Grade 1 (1000V) and Grade 2 (2000V) requirements.
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Can custom self-adhesive coatings be applied to non-standard insulation types?Yes. While QQ/QQN are the standard self-adhesive types, Hengte Electric offers custom self-adhesive coating options for other insulation categories including QZ, QZG, QZY, Q(ZY/XY), and QXY. Please contact our technical team to discuss your specific winding requirements and operating conditions.