Engineered to exceed international performance criteria (IEC, NEMA, JIS), our high-integrity coated aluminum and copper solutions provide outstanding reliability in heavy-duty environments.
In the current macroeconomic climate, global electric equipment manufacturers are experiencing dual pressures: volatile copper prices and strict requirements for energy efficiency. This has made enameled aluminum wire and enameled copper clad aluminum (ECCA) wire crucial components in advanced motor assemblies, power transformers, and high-frequency inductors.
Coated aluminum wires provide an excellent weight-to-performance ratio. By substituting copper with aluminum conductors, industrial systems can achieve up to 50% weight reduction in coils. This shift directly improves energy efficiency and transport dynamics in automotive systems, aeronautical designs, and microelectronics.
With more than ten years of experience, Suzhou Daiming Electrical Materials Co., Ltd. supplies high-grade coated winding wires to manufacturers globally. Our products are engineered to support long-term operational lifetimes, low heat generation, and reliable dielectric performance under harsh environments.
Understanding insulation classifications is key to matching winding designs with their ideal thermal and physical limits. Our production lines process high-grade polymers to meet standard application parameters.
| Insulation / Thermal Class | Polymer Chemistry Type | Key Technical Properties | Primary Industrial Applications |
|---|---|---|---|
| 130 Class (Polyurethane / UEW) | Polyurethane resin coating | High solderability at 360°C–390°C, good dielectric properties, easy termination. | Small relays, ignition coils, solenoids, small motors, and sensors. |
| 155 Class (Polyurethane / UEW) | Modified polyurethane resin | Solderable at 380°C–420°C, improved heat resistance, suitable for high-speed winding. | Telecommunication components, high-frequency flyback transformers, micro-motors. |
| 180 Class (Polyesterimide / EIW) | Polyesterimide ester enamel coating | High thermal endurance, excellent cut-through limit, high resistance to solvents. | Power tool motors, industrial pumps, ballast coils, micro-transformers. |
| 200 Class (Polyesterimide + AIW) | EIW base coat + Polyamide-imide (PAI) top coat | Dual-coat system. Exceptional heat-shock resistance, chemical resistance, and high mechanical strength. | Refrigeration compressors, chemical pump drives, heavy-duty automotive motors. |
| 220 Class (Polyamide-imide / AIW) | Polyamide-imide resin coating | Outstanding resistance to thermal overload, high breakdown voltage, radiation resistance. | Aerospace equipment, EV traction motors, high-power generators, high-temperature coils. |
Our enameled wires are finished with uniform coating films. This provides high flexibility and scratch resistance, ensuring the insulation film remains intact during automated high-tension winding processes.
Manufactured using quality high-temperature polymers, our wires resist cracking, thermal shock, and high dielectric breakdown voltages, reducing coil short-circuit risks under load.
We work to tight manufacturing tolerances. B2B clients can specify precise core wire diameters and enamel thickness profiles to achieve optimal space factors in compact electrical designs.
We serve international industries by providing specialized wire designs that balance lightweight construction, high conductivity, and electrical safety.
Modern electrical engineering is shifting toward higher operational voltages, especially with the 800V EV electrical architecture. Higher drive voltages increase electrical stress on stator windings. This creates a demand for winding wires that can withstand partial corona discharges and high heat loads.
To address this, Suzhou Daiming is updating its coating technology. By utilizing Polyamide-imide (PAI) combined with corona-resistant formulations, we help prevent premature insulation breakdown caused by rapid voltage shifts in modern silicon carbide (SiC) inverters.
We are also working to optimize enameled flat copper and flat aluminum wires. Enameled flat wire offers a higher slot fill factor compared to round wire, reducing void spaces in stator slot designs and improving overall thermal dissipation.
Customer-centric engineering, robust quality assurance, and reliable logistics support our position as a supplier to the international winding wire market.
Suzhou Daiming Electrical Materials Co., Ltd. is a manufacturer specializing in enameled wires, including enameled aluminum, enameled copper, and enameled copper-clad aluminum wires. Operating from a 258,333.33 sq. ft. production site, we run 30 advanced production lines to maintain a stable, high-volume output.
We monitor quality at each stage, from inspecting incoming wire rods to using laser sensors to measure enamel thickness in real time. Our product teams have over ten years of industry experience, ensuring compliance with international standards.
Key updates on raw materials, technical developments, and global logistics for enameled wire procurement.
With the growth of new energy applications, cost control is a primary focus for winding departments. This report details the performance and budget benefits of choosing enameled aluminum wire.
Copper-Clad Aluminum Enameled Wire (ECCA) provides a practical solution for manufacturers trying to mitigate copper price fluctuations. ECCA combines the surface electrical properties of copper with the weight advantages of aluminum.
Our export division recently shipped premium continuously transposed conductor (CTC) components to Turkey, supporting Eurasian power network infrastructure projects.
Common questions from B2B engineering and procurement teams answered by our technical specialists.
Review our enameled copper and specialty conductor products. Contact our sales office to request custom spooling configurations, test reports, or price quotes.
