Explore our industrial-grade enameled wires manufactured under strict international standards (IEC, NEMA, JIS). Designed to provide outstanding dielectric insulation, heat resistance, and chemical stability.
In high-power industrial designs, the choice of conductor and insulation layer determines the system's efficiency, thermal management capability, and service lifespan. The 2mm Polyester Coated Wire (also known as 2mm Polyester Enameled Wire) represents one of the most widely requested specifications for heavy-duty electric motors, electrical alternators, dry-type transformers, and high-voltage transmission units.
Polyester insulation coatings—primarily consisting of polyesterimide (PEI) or polyimide-over-polyester chemistries—provide a robust dielectric barrier. The 2.0 mm diameter core ensures an ideal cross-sectional area of approximately 3.14 mm², which successfully handles substantial electric currents without excessive thermal dissipation. When coated with high-grade polyester enamels, this wire operates smoothly in environments ranging from Class 130 to Class 220 thermal classes.
Global procurement teams favor the 2mm gauge because it achieves the critical balance between physical mechanical flexibility (essential for automatic winding machine spindles) and robust ampacity levels. Under strict industrial standards, this wire must resist severe mechanical abrasions during fast-speed winding, withstand chemical exposures to impregnating varnishes, and prevent insulation deterioration under dynamic electrical stresses.
At Suzhou Daiming Electrical Materials Co., Ltd., we prioritize customer needs as our core operational philosophy. Established as a leading high-tech manufacturer of high-quality enameled wires—including enameled aluminum wires, enameled copper wires, and enameled copper-clad aluminum (ECCA) wires—our modern plant satisfies the rigorous requirements of critical industries globally.
Situated on a sprawling 258,333.33 ft² industrial site, our facility houses 30 state-of-the-art production lines featuring advanced high-speed wire drawing, in-line annealing, and computerized enameled curing ovens. This advanced production scale permits a highly stable monthly output, ensuring that global volume purchasing contracts are executed with absolute punctuality. Our in-house research laboratory conducts continuous chemical testing, dielectric strength analysis, thermal rating checks, and mechanical stress evaluations, ensuring that every batch shipped matches the declared technical specifications.
With an active export presence spanning over 10 cooperating countries, our engineering and sales teams possess a deep understanding of regional compliance criteria, customs guidelines, and logistics safety protocols. From customized packaging options to specialized paint layer formulations, we serve as a premier partner for multinational companies.
Our 30 high-speed production lines combine multi-pass wire drawing and automated enamel coating to maintain exceptional diameter uniformity and paint-layer concentricity.
We execute 100% online spark inspection, high-voltage continuity checks, thermal shock testing, and pinhole tests to achieve zero-defect standards for critical systems.
Engineering excellence is reflected in every detail. Our enameled wire products deliver optimal thermal, chemical, and mechanical features for modern power transmission and control systems.
Every reel of 2mm polyester coated wire undergoes continuous thickness monitoring, ensuring uniform dielectric properties and preventing voltage breakdown under thermal spikes.
Formulated for peak endurance under stress. Our coatings prevent breakdown at high temperatures (up to 220°C) and under severe mechanical wrapping pressures.
We supply precise wire gauge customization. Beyond standard 2mm, we fulfill specialized conductor dimensions, thermal class configurations, and insulation layer thickness classes.
Our raw material partnerships and highly organized warehousing protocols safeguard operations from price volatility and deliver reliable shipment intervals.
Designed for premium efficiency systems. Our wires reduce heat losses in modern electric vehicle (EV) drivetrains, solar inverters, and high-efficiency green transformers.
Our technical team leverages over 10 years of collective enameled wire manufacturing experience to advise clients on material matching and application engineering.
Standard values for polyester-based enameled wires. We customize these parameters to meet specific international electrical engineering specifications.
| Parameter | Copper Core Specifications | Aluminum Core Specifications | Testing Standards Applied |
|---|---|---|---|
| Nominal Conductor Diameter | 2.00 mm (±0.015 mm) | 2.00 mm (±0.020 mm) | IEC 60317 / GB/T 6109 |
| Thermal Class Options | Class 130, 155, 180, 200, 220°C | Class 130, 155, 180, 200°C | NEMA MW 1000 / UL 1446 |
| Insulation Type | Polyester (PEW) / Polyesterimide (EIW) | Polyester (PEW) / Polyesterimide (EIW) | ASTM D1676 |
| Breakdown Voltage (Grade 2) | > 7.5 kV | > 5.5 kV | IEC 60851-5 (Twisted Pair) |
| Elongation Rate | ≥ 30% | ≥ 15% | IEC 60851-3 |
| Springback Angle | ≤ 5 degrees | ≤ 8 degrees | JIS C3003 |
| Pinhole Test | 0 / 6m (No exposure points) | 0 / 6m (No exposure points) | High-Voltage continuity test |
From micro-electronics to massive regional grids, our enameled wire range supports critical infrastructure globally.
The global transition to 800V electric vehicle architecture requires enameled wires with enhanced corona discharge resistance and high thermal endurance. The 2mm polyester-imide wire is vital for winding stator coils, providing excellent packing factor efficiency and thermal dissipation inside liquid-cooled traction motors.
Heavy-duty dry-type power transformers utilize 2mm insulated wire to manage massive power transfers safely. The high dielectric properties of our polyester coatings prevent inter-turn short circuits, extending system operational lifespans under fluctuating electrical grid demands.
In massive power transformers, using single massive conductors creates large eddy current losses. In response, we assemble Continuously Transposed Conductors (CTC) utilizing multiple insulated strands of flat and round wires. This design minimizes high-frequency current losses and enhances mechanical stability during sudden short circuits.
Automated manufacturing facilities run on high-torque servo motors, robotic arms, and magnetic solenoids. The durability of our 2mm polyester-coated wire guarantees uninterrupted operations under high-vibration and continuous-cycling factory environments.
Located in the heart of China’s advanced electrical manufacturing corridor, Suzhou Daiming offers key advantages to international purchasers.
We source only high-purity cathode copper (with electrical conductivity exceeding 100% IACS) and premium high-grade aluminum rods. Our proximity to top-tier domestic polymer factories ensures direct access to leading polyester coatings at competitive pricing structures.
Our production floor uses multi-pass diamond drawing dies with integrated laser monitoring. This tech manages 2mm wire diameters down to micron-level accuracy, ensuring consistent coil packaging dimensions and minimizing winding resistance errors.
Located near major ocean hubs like Shanghai and Ningbo, we offer fast container consolidation and shipping. We wrap all spools in shockproof plastic wrapping inside reinforced sea-freight crates, ensuring no damage occurs during global transit.
For procurement officers and systems designers sourcing 2mm Polyester Coated Wire, specifying the correct parameters is essential to system performance. When submitting requests for quotes (RFQs), we recommend confirming the following details:
Specify Pure Enameled Copper Wire for applications demanding the highest electrical efficiency and compact physical footprints. Select Enameled Aluminum Wire or Copper Clad Aluminum (ECCA) to reduce overall component weight and lower bill-of-materials (BOM) costs in weight-sensitive assemblies.
We supply three distinct standard insulation thicknesses: Grade 1 (standard coating thickness), Grade 2 (increased insulation for higher breakdown voltages), and Grade 3 (heavy build insulation for high-frequency or high-stress environments).
We match chemical coatings to your operating environments. Options range from standard polyester (Class 130/155) up to advanced polyesterimide overlaid with polyamideimide (Class 200/220) for superior chemical and thermal wear resistance.
We spool wires onto robust plastic spools including PT-15, PT-25, PT-30, PT-60, and PT-90 configurations. Secure packaging prevents wire crossovers and ensures clean high-speed feeding on automatic winders.
Get answers to common technical, manufacturing, and logistics questions about our 2mm polyester enameled wire.
Stay updated on material science breakthroughs, global supply chain dynamics, and regulatory shifts in the magnet wire sector.
Suzhou Daiming has shipped a custom order of Continuously Transposed Conductors (CTC) to a major electrical utility in Turkey. This order supports regional grid upgrades, demonstrating our capability to deliver reliable electrical components to Europe and Asia.
With copper pricing fluctuations globally, many manufacturers are choosing enameled aluminum wire. By refining our drawing and annealing processes, Suzhou Daiming offers aluminum alternatives that achieve 61% IACS conductivity while reducing component weight by up to 50%.
The expansion of 800V electric vehicle drivetrains requires insulation that resists partial discharge under high-frequency switching. Our engineering team is developing modified polyester-imide enamels to meet these strict high-voltage automotive requirements.
Browse our additional enameled flat, round, and paper-covered wire solutions designed for demanding industrial applications.
