Explore our precision-engineered high-frequency copper wires designed for optimum thermal endurance and low high-frequency AC power losses.
The industrial sector in Russia is currently undergoing a dynamic technological shift, propelled by rapid modernization, national import-substitution initiatives, and intensive investments in power electronics, renewable energy grids, and electric transportation infrastructure. Major industrial regions such as Central Russia (Moscow and surrounding hubs), the Northwest (Saint Petersburg), the Urals (Yekaterinburg, Chelyabinsk), and Siberia (Novosibirsk) are witnessing unprecedented demand for specialized, high-performance electromagnetic conductors.
As Russian electrical equipment OEMs and power system manufacturers transition toward higher operating frequencies (ranging from 10 kHz up to several megahertz), traditional solid magnet wire quickly hits physical limits due to severe skin effect and proximity effect losses. Mylar Litz Wire—constructed with multiple individually insulated enamelled copper strands bundled and outer-wrapped with durable Polyester (Mylar/PET) tape—has emerged as the definitive standard to resolve these thermal and electrical challenges.
High-frequency power supplies, resonant converters, and industrial inverters across Russian manufacturing centers require Mylar taped Litz wires to maximize electrical efficiency and minimize operating heat.
The Urals metallurgical and heavy forging industries rely heavily on custom rectangular Mylar Litz wire for high-power induction heating coils operating under rigorous thermal loads.
Railway traction convertors, urban e-bus charging infrastructure, and emerging EV powertrains demand high dielectric insulation up to 3000V-6000V breakdown voltage strength.
Mylar Litz Wire consists of finely stranded enameled copper conductors wrapped with one or multiple overlapping layers of Mylar (Polyester/PET) tape. This engineered combination yields unparalleled advantages for modern high-frequency magnetic components:
| Property | Specification Range |
|---|---|
| Conductor Diameter | 0.030mm to 0.50mm (48 AWG to 24 AWG) |
| Strand Count | 2 strands up to 6,000+ strands |
| Thermal Class | Class B (130°C), Class F (155°C), Class H (180°C) |
| Insulation Material | UEW, PEW, PI, ETFE, PET (Mylar) Taped Wrap |
| Outer Insulation | Single/Double/Multiple Overlapping Mylar Tape |
| Cross Section | Round or Compacted Rectangular / Flat Wire |
Your trusted manufacturing partner delivering high-precision magnet wire solutions worldwide since 2002.
Tianjin Ruiyuan Electric Material Co,. Ltd. (Ruiyuan) was established in 2002, in the past 20 years, we have been thinking one question ‘How Satisfy Customer ’ that drives us to expand product lines from fine enameled copper wire to litz wire, USTC, rectangular enameled copper wire, triple insulated wire and also guitar pickup wire, 6 main types with over 20 kinds of magnet wire. Here you will enjoy One Stop Purchase Service with cost effective price, and quality is the last thing you need to concern. We wish to help you reduce your costs and save your time, and establish long term Win-Win cooperation.
What we have been doing in 20 years is pursuing our operation philosophy ‘Customer Oriented, Innovation brings more Value’ that is not slogan, but a part of our DNA. Not like ordinary magnet wire provider, only give specified size range. We are solution provider that need us to be more professional on wires, insulation material and your applications.
One of European customer need high frequency litz wire that uses on wireless charge of automotive, but need excellent performance of solvent resistance, and flame rate follows UL94-V0, the current insulation could not meet the requirement, they had solution but the price was too high. Finally our R&D team proposed a innovative solution after fully discussion: ETFE insulation extruded on the surface of litz wire, that perfectly solved all the problems after one year verification. The project lasts two years, and the wire has been in mass production since this year.
SUCH CASE IS PREVALENT IN OUR COMPANY, THAT FULLY DEMONSTRATE OUR ADVANTAGES ON TECHNOLOGY AND SERVICE. BESIDES THIS, THESE NUMBERS TELL MORE ABOUT US:
Average Delivery Time
European & North American Customers (PTR, ELSIT, STS, etc.)
Customer Repurchase Rate
Satisfaction Rate (Class A Supplier verified by German Customer)
State-of-the-art production equipment, cleanroom taping facilities, and high-precision testing instruments ensuring reliable performance across all batches.
We really hope to know you, bring you more value with our better product and service.
100% Open and Delivering On-Time. As a leading supplier of enamel copper wire, we have earned a reputation for providing a superior customer experience and first-class quality.
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Ruiyuan attracts many outstanding technical and management talents. Our founders have built the best team to provide quality products and services.
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We sincerely welcome business partners from all over Russia and around the world, looking forward to establishing long-term win-win cooperation.
Contact UsBrowse our extended product lineup including specialized Silk Covered Litz Wire, PI Taped Wire, Rectangular Mylar Litz Wire, and High Purity OCC Conductors.