Precision-engineered electrical paper covered flat copper and aluminum conductors optimized for substation upgrades, distribution transformers, and local renewable grids in Tel Aviv, Haifa, and Ashdod.
As a global powerhouse for high-tech innovation and green infrastructure, Israel is undergoing a massive shift towards decarbonization and smart grid stability. The demand for robust distribution transformers, solar PV inverters, and heavy-industrial motors has reached record heights, requiring advanced winding materials capable of handling high electrical stresses and extreme thermal environments.
In this dynamic marketplace, Paper Covered Flat Wire (PCFW) represents a critical component. Wound within oil-immersed transformers, induction reactors, and utility-scale generators, the insulation and winding quality directly affect energy efficiency and service life. The domestic grid in Israel requires compliance with strict European and international standards (IEC, EN, ASTM), making the import of premium-grade insulated flat wires essential for local energy developers, municipal distributors, and industrial plants.
By pairing high-conductivity oxygen-free copper or EC-grade aluminum with multi-layered insulating Kraft paper, our products deliver the exact combination of physical flexibility and dielectric strength required by the nation's most demanding electrical and military applications.
Global Pioneer in High-Performance Enameled and Paper Covered Insulated Conductors
Customer needs form the absolute core of our operating philosophy. Suzhou Daiming Electrical Materials Co., Ltd. is an industry-leading manufacturer of high-quality enameled and paper-insulated wires. Our comprehensive portfolio includes enameled aluminum wires, enameled copper wires, and copper-clad aluminum enameled wires (CCA), along with our premium paper-covered flat wire configurations designed specifically for high-capacity power distribution networks.
Situated on a sprawling 258,333.33 ft² manufacturing site, our advanced production facility houses 30 state-of-the-art production lines. This robust infrastructure enables us to maintain a stable, high-volume output, ensuring a consistent supply to meet global market demands. Through strict quality control at every stage—from raw material selection to final dielectric testing—we guarantee the durability and performance of our winding solutions.
Why electrical engineers, transformer factories, and grid operators in Israel and globally trust Daiming materials.
Each roll of enameled wire undergoes rigorous process and quality inspections to ensure a uniform, dense film with excellent adhesion, scratch resistance, and physical flexibility.
Designed for reliability. Our paper-insulated and enameled magnet wires withstand continuous thermal stress, reducing dielectric breakdown under severe operational loads.
We provide tailormade dimensions, specialized conductor thickness, width ratios, and precise paper wrapping layers to match your specific impedance and dielectric requirements.
Leveraging massive production output and partnerships, we guarantee stable raw material sourcing and timely delivery schedules to overseas projects and warehouses.
Our low-loss conductors are essential components in high-efficiency, energy-saving transformers, EV charging grids, and wind power generation systems.
Our dedicated R&D team averages over ten years of industry experience, ensuring complete compliance with international quality and testing standards.
Providing structural reliability and high conductivity across critical power sectors.
Exploring the mechanical, electrical, and thermal properties that prevent failures under load.
The manufacturing process of Paper Covered Flat Wire (PCFW) requires extraordinary precision. An un-insulated copper or aluminum core is extruded or drawn to precise dimensional limits before wrapping. Kraft paper layers (specifically selected from high-density, electrical-grade pulps like Dennison or Miki paper) are wrapped helically around the flat conductor.
The overlap ratio of the paper layers is strictly monitored (typically between 30% and 50%) to ensure that no structural gaps form when the wire is bent into tight transformer coils. Multiple paper tapes can be applied simultaneously to achieve targeted dielectric breakdown strengths, allowing the wire to perform seamlessly within mineral oil or synthetic ester-filled transformer environments.
For applications within Israel, choosing between copper and aluminum conductors involves balancing space constraints and cost efficiency. Copper offers the highest electrical conductivity and a smaller cross-sectional profile, which is critical for urban substations in Jerusalem or Tel Aviv where footprint size is restricted. Conversely, paper-covered flat aluminum wire is highly cost-effective and lightweight, making it suitable for larger overhead line transformers and wind power grid links.
| Parameter | Copper Core (PCFW-Cu) | Aluminum Core (PCFW-Al) |
|---|---|---|
| Standard Conformity | IEC 60317-27, GB/T 7673.3 | IEC 60317-27, GB/T 7673.3 |
| Conductor Width (a) | 2.00 mm - 16.00 mm | 2.50 mm - 18.00 mm |
| Conductor Thickness (b) | 0.80 mm - 5.60 mm | 1.00 mm - 6.00 mm |
| Thermal Class | 90°C, 105°C, 120°C | 90°C, 105°C, 120°C |
| Elongation at Break | > 30% (depending on size) | > 15% (depending on size) |
| Insulation Material | Telecommunication paper, Kraft paper, Crepe paper, Nomex® |
Navigating global supply lines, import logistics, and strict standards for critical equipment.
We perform strict electrical properties testing, including proof tests for dielectric breakdown voltage, paper adhesion testing, and precision micrometric dimension checking to prevent winding hot spots inside transformers.
Specialized packaging systems are utilized to prevent oxidation during maritime transit. Wires are secured on strong reels, wrapped in heavy-duty moisture-barrier films, and packaged inside wooden crates designed for safe unloading at Israeli ports.
We supply full documentation packages, including materials certificates, test reports, and compliance proofs with IEC standards to satisfy local quality controls and municipal infrastructure audits.
Everything you need to know about purchasing, importing, and using Paper Covered Flat Wire.
Paper Covered Flat Wire (PCFW) offers a significantly higher space-filling factor inside transformer coils because of its rectangular profile, allowing engineers to design smaller and more efficient transformer designs. The Kraft paper insulation layer provides excellent mechanical protection against high-voltage surges and physical winding stress, absorbing transformer oils to enhance dielectric performance and heat dissipation.
We provide a wide range of specialized insulating papers, including electrical-grade Kraft paper, high-density crepe paper (ideal for bends and leads), Nomex® aramid paper (for high-temperature classes up to Class H), and specialized thermally upgraded papers designed to extend transformer service life under high operational temperatures.
We work with established logistics partners to arrange secure ocean and air freight shipments to major entry ports in Israel, including Ashdod and Haifa. All shipments are packed on strong, export-grade wooden pallets or reels, protected by moisture-barrier films and desiccant packs to prevent humidity damage during sea transit.
Every shipment comes complete with mill test certificates, dimension reports, copper/aluminum purity verification, and insulation breakdown reports in compliance with IEC 60317-27, NEMA MW 31-C, and ASTM standard specifications, ensuring smooth customs clearance and quality auditing.
Yes, Suzhou Daiming manufactures highly specialized Continuously Transposed Conductors (CTC), both self-adhesive and mesh-wrapped, which are vital for reducing eddy current losses in high-voltage power transformers and reactors.
Discover our full catalog of high-purity aluminum and copper magnet wires, designed for peak performance.
