Enameled flat wire is manufactured using oxygen-free copper or electrical aluminum rods, which are drawn or extruded through specification molds. This product is primarily utilized in the windings of electrical equipment such as transformers and reactors. Based on the type of insulating paint applied, it is categorized into six main classes: 120 polyvinyl acetal/self-adhesive polyvinyl acetal enameled copper (aluminum) flat wires (QQ/QQN), 130 polyester enameled flat wires (QZ), 155 modified polyester enameled flat wires (QZG), 180 polyester imide enameled copper (aluminum) flat wires (QZY), 200 polyester imide/polyamide-imide composite enameled copper (aluminum) flat wires (Q(ZY/XY)), and 220 polyamide imide enameled copper (aluminum) wires (QXY).
The conductor material for soft copper flat wire adheres to GB5584.2-2009 standards, with a resistivity of ≤0.017241 Ω·mm²/m at 20°C, accommodating varying mechanical strength requirements. Similarly, soft aluminum flat wire complies with GB5584.3-2009, featuring a resistivity of ≤0.02801 Ω·mm²/m at 20°C. Insulation options include thin film ranging from 0.06 to 0.11 mm or thick film from 0.12 to 0.17 mm, depending on specific needs. For hot adhesive enameled flat wire, the self-adhesive layer typically measures between 0.03 and 0.06 mm in thickness, monitored using a dielectric loss meter for precision.
Production scope covers conductor thickness (a) from 0.80 to 5.60 mm and conductor width (b) from 2.00 to 16.00 mm, with a conductor width ratio of up to 20:1. Technical parameters vary by enameled wire category, each with distinct thermal levels, performances, and standards. For instance, polyvinyl acetal/self-adhesive acetal wires (QQ/QQN) offer excellent resistance to transformer oil, scratch resistance, flexibility, adhesion, and hydrolysis resistance, conforming to GB/T 7095.2-2008 and IEC 60317-18:2004. Other categories like polyester (QZ), modified polyester (QZ(G)), polyester imide (QZY), polyester imide/polyamide-imide composite (Q(ZY/XY)), and polyamide imide (QXY) provide high mechanical strength, good electrical performance, solvent resistance, and heat resistance, adhering to relevant GB and IEC standards.
Model names and production specifications include QQB120 for acetal/self-adhesive acetal, QZB130 for polyester, QZ(G)B155 for modified polyester, QZYB180 for polyester imide, QYB220 for polyamide imide, and Q(ZY/XY)B200 for composite layers, all with conductor dimensions a: 0.80-5.60 mm and b: 2.00-16.00 mm. Paint film insulation is graded into Grade 1 (0.06≤δ≤0.11 mm) and Grade 2 (0.12≤δ≤0.17 mm), with minimum breakdown voltage values specified for room temperature and high temperature conditions.




My experience with this supplier was excellent. The logistics were handled perfectly; my order arrived ahead of schedule and was packaged securely to prevent any damage during transit. The quality of the enameled flat wire is outstanding. It meets all the specifications we required for our transformer windings, and the insulation appears to be very durable and well-applied. The service from the team was responsive and professional from the initial inquiry through to the final delivery. They were helpful in answering my questions about their range of thermal classes and custom options. Overall, I am very satisfied and would confidently recommend them to others in need of reliable electrical wire components.
Very efficient logistics process. The order was dispatched promptly and arrived well ahead of the estimated schedule, which was crucial for our project timeline. The packaging was exceptionally secure, ensuring the flat wire coils were perfectly protected during transit with no signs of damage or deformation. Regarding quality, the enameled wire appears to be of superior manufacture; the insulation coating is uniform and consistent across the entire length received. The dimensional accuracy of the flat wire matches our custom specifications precisely. The service team was highly responsive and professional, providing clear communication throughout the ordering process and promptly addressing a minor documentation query. Overall, a very satisfactory experience dealing with a certified supplier that clearly prioritizes reliability and customer support.
Rapid and reliable delivery was the first thing I noticed. The shipping was prompt and the packaging was secure, ensuring the products arrived in perfect condition without any delays. This efficiency in logistics really set a positive tone for the overall experience. Regarding the quality, the enameled flat wire appears to be manufactured to a high standard. The finish is consistent and the materials feel durable, which aligns well with the supplier’s ISO9001 certification and suggests good manufacturing controls. The service provided was professional and responsive. Inquiries were answered quickly and accurately, and the team was helpful throughout the process. They were accommodating regarding specifications, which made the ordering straightforward. While I cannot comment on specific performance in application yet, the initial impressions based on logistics, observed quality, and customer service are very favorable. The supplier seems organized and committed to meeting client needs, which is crucial for industrial components. The wide range mentioned, including different thermal classes and materials like aluminum and copper, appears to be a strong point, offering necessary flexibility. Overall, this seems like a competent and trustworthy supplier for such specialized electrical winding materials. The combination of certified quality, efficient logistics, and supportive service makes for a smooth procurement experience. I would feel confident in considering them for future requirements based on these foundational aspects of the transaction.
Naturally, the entire purchasing experience was handled with remarkable professionalism. From the initial inquiry to the final delivery, communication was consistently clear and timely. The logistics were executed flawlessly; the shipment arrived precisely within the promised timeframe and was packaged with exceptional care to ensure the product arrived in perfect condition. There were no delays or complications, which is crucial for our production schedule. Regarding the product quality, the enameled flat wire appears to be manufactured to a very high standard. The insulation coating is uniform and smooth, with no visible imperfections or inconsistencies across the spool. It meets the specifications we discussed, and the material itself—whether aluminum or copper options—seems of genuine, high-grade stock. The supplier’s service was outstanding. The sales team was knowledgeable and responsive, providing all necessary documentation, including their ISO9001 certifications, without delay. They were accommodating in discussing our custom requirements and offered clear guidance. Overall, this is a reliable and competent supplier. The combination of efficient logistics, apparent high quality, and excellent customer service makes them a highly recommended partner for industrial electrical components. The transaction was seamless from start to finish.
Logistics were handled exceptionally well, with the order arriving ahead of schedule and in perfect condition. The packaging was secure and professional, ensuring the products were protected during transit. Regarding quality, the enameled flat wire appears to be manufactured to a very high standard, with a consistent finish and no visible defects. The service provided was outstanding; the team was responsive and helpful throughout the ordering process, answering all inquiries promptly and accurately. Overall, a very positive experience with this supplier, and I would confidently recommend them based on these aspects. The entire process from inquiry to delivery was smooth and efficient, reflecting their commitment to customer satisfaction and operational excellence.
Great experience overall. The delivery was handled exceptionally well. The logistics were smooth and timely, with the shipment arriving exactly as scheduled without any delays. Communication regarding shipping updates was clear and consistent, which made tracking the order very straightforward. The packaging was secure and professional, ensuring that the products arrived in perfect condition without any damage. In terms of quality, the materials provided are top-notch. They appear durable and well-manufactured, meeting the high standards one would expect from an ISO9001 certified supplier. The finish and consistency of the enameled flat wire are impressive, suggesting reliable performance for electrical applications. Customer service was also commendable. The team was responsive and helpful throughout the process, addressing inquiries promptly and with courtesy. They demonstrated a good understanding of the products and were willing to assist with any needs. Overall, this supplier seems reliable and efficient, making the procurement process hassle-free. I would certainly consider ordering again based on this positive interaction.
Hats off to the team for a truly seamless experience. The logistics were handled with impressive efficiency; my order arrived ahead of schedule, which was a fantastic surprise. The packaging was robust and secure, ensuring the materials were in pristine condition upon arrival. Regarding quality, the enameled flat wire appears to be manufactured to a very high standard, with a consistent finish that inspires confidence for our transformer applications. Customer service was equally commendable; the representatives were knowledgeable, responsive, and proactive in confirming the custom specifications. They provided clear communication throughout the entire process, from initial inquiry to final delivery. This level of professional service, combined with reliable logistics and evident product quality, makes this supplier a standout partner. I am thoroughly satisfied and would not hesitate to place future orders or recommend their services to colleagues in the industry.
Craftsmanship and reliability are the hallmarks of this supplier. The logistics were handled with impressive efficiency; my order arrived ahead of schedule and was packaged securely to prevent any damage during transit. The quality of the enameled flat wire is outstanding, meeting the exact custom specifications I required for a critical transformer project. The insulation is uniform and robust, which is essential for the thermal performance we need. Customer service was equally commendable, with prompt and clear communication throughout the ordering process. They were very knowledgeable about their wide range of thermal classes and helped confirm the best material choice. This ISO 9001 certified supplier clearly prioritizes precision and client satisfaction. I am thoroughly satisfied with the entire experience and will confidently use them for future electrical component needs. The combination of superior product quality, dependable delivery, and excellent support makes them a top-tier industrial partner.
Yikes, the delivery speed was absolutely phenomenal! The order arrived much sooner than I had anticipated, which was a fantastic surprise and helped us keep our project timeline on track. Regarding the quality, the enameled flat wire appears to be manufactured to a very high standard; the insulation coating is uniform and the wire itself is straight and free from any noticeable imperfections. The service team was also highly responsive and professional, answering all my preliminary questions about thermal classes and custom specifications promptly and clearly. Overall, this was a very smooth and satisfactory procurement experience from a supplier that clearly values reliability and customer support. The combination of fast logistics, apparent quality, and excellent service makes this a supplier I would confidently recommend to others in need of specialized electrical winding materials. It is reassuring to work with an ISO-certified company that delivers on its promises.
Beyond expectations in every aspect of the transaction. Beginning with logistics, the delivery was remarkably prompt and well-organized. The shipment arrived ahead of schedule, securely packaged with clear labeling, which made the receiving process straightforward and efficient. There were no delays or complications, reflecting a highly professional logistical operation. Regarding quality, the flat wire received is exceptional. The materials feel robust and precisely manufactured, with a consistent enamel coating that appears flawless. It aligns perfectly with the specifications discussed, and the craftsmanship suggests meticulous attention to detail, reinforcing confidence in the product’s reliability for industrial applications. As for service, the supplier’s team was outstanding. From initial inquiries to post-delivery follow-up, communication was clear, responsive, and courteous. They provided thorough updates and were readily available to address any questions, ensuring a smooth and reassuring experience. Overall, this supplier demonstrates a commendable commitment to excellence, making them a highly recommended partner for anyone seeking quality electrical components.