Explore our high-performance magnet wires engineered for extreme thermal endurance, chemical resistance, and structural stability.
Global-Standard Manufacturing and Innovation in Magnet Winding Wires
Suzhou Daiming Electrical Materials Co., Ltd. is a leading manufacturer of high-quality enameled wires: enameled aluminum wires, enameled copper wires, and enameled copper-clad aluminum wires. Situated on a sprawling 258,333.33 ft² site, our advanced production facility houses 30 state-of-the-art production lines.
This robust infrastructure enables us to maintain a stable and high-volume output, ensuring consistent supply to meet global market demands. With strict quality control at every stage, from raw material inspection to final product testing, we uphold the highest industry standards, guaranteeing the durability and performance of our enameled wires.
A deep-dive technical assessment of winding properties, mechanical tolerances, and dielectric efficiency.
Enamelled copper wire with a nominal diameter of 1.00 mm (equivalent to AWG 18) represents a critical design threshold in electromotive equipment. It delivers an optimized balance of electric current carrying capacity, mechanical structural integrity, and winding flexibility. The wire is widely selected for high-frequency transformers, heavy-duty solenoids, and high-efficiency electric motors.
Utilizing 99.99% pure oxygen-free high-conductivity (OFHC) copper cathodes, our drawing processes achieve a minimum electrical conductivity rating of 100% IACS. This minimizes I²R thermal dissipation losses under peak operating loads.
Available in Class 130 (Polyurethane/UEW), Class 155, Class 180 (Polyesterimide/EIW), Class 200, and Class 220 (Polyamide-imide/AIW). Each class offers specialized heat shock resistance and cut-through parameters for varying thermochemical stresses.
Produced to standard Grade 1 (Single coat), Grade 2 (Double coat), or Grade 3 (Triple coat) parameters compliant with IEC 60317, NEMA MW 1000, and JIS C 3202 benchmarks. Grade 2 insulation offers enhanced dielectric breakdown resistance up to 7kV+.
| Technical Characteristic | Standard Value / Spec Limit | Testing Metrology Standard |
|---|---|---|
| Nominal Conductor Diameter | 1.000 mm ±0.008 mm | Micrometric Laser Caliper (IEC 60851-2) |
| Minimum Breakdown Voltage (Grade 2) | ≥ 6,000 V (Typical test values exceed 7,500 V) | Twisted Pair Breakdown Method (IEC 60851-5) |
| Elongation at Break | ≥ 30% | Tensile Tester (IEC 60851-3) |
| Springback Angle | ≤ 5.0 Degrees | Springback Tester (JIS C 3003) |
| Insulation Thickness (Grade 2 Max) | 0.060 mm to 0.080 mm | Optical Profile Microscopy |
| Heat Shock Temperature (Class 200) | 220 °C (No surface cracking observed) | Pre-stretched Mandrel Heat Shock Chamber |
How Suzhou Daiming leverages industrial agglomeration, raw material controls, and technology-driven operations.
Each roll of enameled wire undergoes rigorous online monitoring to guarantee a uniform and dense paint film. Our coating technology delivers strong adhesion, scratch resistance, and excellent winding flexibility.
Manufactured with precise, automated thermal profile controls. Our wire displays thermal endurance that prevents short circuits under extreme mechanical load and elevated temperature thresholds.
Beyond standard catalog items, we offer customizable drawing tolerances, specialized enamel coatings, and tailored packaging configurations matching your automated high-speed winding machinery.
Through our massive production footprint and vertical integration with primary copper drawing facilities, we maintain production schedules that guarantee on-time shipping for major projects.
Supplying critical winding materials for global electrification and next-generation power infrastructure.
The electric vehicle industry is rapidly transitioning from standard 400V electrical architectures to 800V high-voltage platforms. This shift significantly reduces charging times and increases vehicle power output, but it exposes magnet wires to severe electrical, thermal, and chemical stress levels.
High-voltage drivetrains generate intense partial discharges (corona discharge) that quickly degrade conventional insulation coatings. This hazard has fueled demand for corona-resistant enamelled copper wires featuring composite chemical coatings.
By integrating nano-silica or titanium-oxide compounds into our outer polyimide enamel layers, our factory produces magnet wires that withstand high voltage rise times (dV/dt) and prevent premature dielectric failure in automotive drivetrains.
Premium solutions for compact motor stators, energy storage, and industrial power distribution systems.
Suzhou Daiming's rigorous quality assurance standards ensure every spool matches project tolerances.
We utilize non-contact laser dimension control and high-voltage spark testing technologies in real-time during extrusion. Any surface defects or pinhole outliers are flagged instantly to keep product batches consistent.
Our testing labs run regular solvent resistance, thermal aging, springback angle, and breakdown tests. These check that polyurethane, polyesterimide, and polyamide-imide resins adhere properly to the core conductor.
Our products conform to major international engineering standards including IEC, NEMA, and JIS. Daiming's processes are registered under ISO 9001 and ISO 14001, verifying clean, reliable, and trackable industrial operations.
Market updates, international shipping milestones, and technical achievements from Daiming Electrical Materials.
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Ensuring absolute protection and smooth pay-off operations during high-speed winding processes.
To prevent wire deformation, enamel cracking, or abrasion during international transport, we implement robust packaging standards. The wire is wound on impact-resistant plastic spools designed for compatibility with high-tension automatic coil winding machines.
We offer custom spool sizing matching global system standards, including PT-4, PT-10, PT-15, PT-25, and cylindrical PL spools. Every spool is vacuum-sealed in heavy-duty polyethylene bags with moisture absorbing desiccant packs, then placed in corrugated boxes on export-grade pallets.
Expert answers addressing the key technical, structural, and chemical questions for engineers and buyers.
