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Ultra Fine Enameled Copper Wire

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Tianjin Ruiyuan Electric Material Co,.Ltd

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Profile

Tianjin Ruiyuan Electric Material Co,.Ltd (Ruiyuan) was established in 2002, in the past 24years, we have been committed to "Precision Engineering for Complex Wire Solutions." This dedication has driven us to expand our product range from fine enameled copper wires to include litz wire, OCC copper wire, rectangular enameled copper wire, triple-insulated wire, and guitar pickup wire. Currently, we offer six main categories with over 20 varieties of magnet wire.

Engineering Excellence Beyond the Standard For over 24 years, Tianjin Ruiyuan (Ruiyuan) has evolved from a specialist manufacturer of ultrafine enameled copper wire into a strategic Solution Provider for the world’s most demanding industrial applications. We don’t just supply wire; we engineer the critical components that drive performance in high-frequency power electronics, aerospace, and medical technology.

Bridging the Gap in High-Frequency Innovation In an era where efficiency is non-negotiable, Ruiyuan stands at the forefront of tackling complex challenges in extreme insulation and high-frequency loss reduction. Our expertise is best demonstrated through our R&D initiatives for the European automotive sector. When global Tier 1 suppliers faced the dual challenge of solvent resistance and UL94-V0 flame retardancy for wireless charging systems, standard solutions failed. Our engineering team delivered a breakthrough: a specialized ETFE-extruded Litz wire that optimized thermal stability without compromising electrical performance—a solution now in mass production for the future of mobility.

Such case is prevalent in our company, that fully demonstrate our advantages on technology and service Besides this, these numbers tell more about us

7-10days Average delivery time.
90% European and North American customers. Such as PTR,ELSIT, STS etc.
95% Repurchase rate
99.3% Satisfaction rate. Class A supplier verified by German customer.

Your Strategic Partner for Extreme Applications From 0.012mm ultra-fine enameled copepr wire to complex rectangular Litz wires, we provide the technical depth required to push the boundaries of what’s possible. Whether you are optimizing an EV drivetrain or developing next-gen power conversion, Ruiyuan is your partner in achieving unparalleled electromagnetic efficiency.

Basic Information

Company Name: Tianjin Ruiyuan Electric Material Co,.Ltd

Business Type: Manufacturer, Distributor/Wholesaler, Trading Company

Brands: Rvyuan

Employee Number: >100以上

Year Established: 2002

Total Sales Annual: 2Mllion-3Million

Company Location: 22-2, Jinlian Business Park, Crossing Of Xinjiayuan Road And Lishuang Road, Jinnan Dist.

Trade & Market

Company slogan:

Exquisite,High quality, all for customers!

OEM Overview:

Now OEM and ODM are more and more popular, especially ODM. With different standard such as JES/NEMA/IEC can't always meet your demand, so we can produce according to your specification. If you don't have specified demand, but have your own idea what you want, please tell us, we will help to design your specification and provide sample to test. We have been dealing with many customers with their own demand for many years, trust our professional experience!

Production Line:

We produced and delivered corresponding to the industry standards IEC 60317-51, JIS C3202, NEMA, MW82-C or to customer specific requirements. Besides enamelled copper wire we also produce enamelled wire made from many other metal as well as selfboding wire and litz wire

The floor space of facotry is over 8000㎡ that is divided into two factories: Wire Drawing factory and Wire enamelled factory.

With 200 experienced staffs and 7 core quanlity control systems, our high quality has been confirmed by external auditors repeatedly in numerous certificates, please check our certificates.

R&D:

We have four national invetionas and ten national know-how at present covering the core technologies of production equipmetn desing and manufacture, product R&D and crafting standard establishment etc. Meanwhile the company has high standard ability in analyzing mechanical function of wire paint, electrical function, heat-proof function, erosion-proof function and application etc.

With strong R&D team, most our team members have 8 years experience, some are over 20 years, all these ensure our products are always innnovative, leading quality and providing finer and finer enameled cooper wire

We are keeping on product innovation, and willing to do market research and development with our clients hand in hand.

Our Team:

What Drives Us

Our Core Values

We respect the unique value every individual brings and create an environment where talent can truly thrive.

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Long-Term Vision

We think beyond short-term gains. Every decision is guided by a clear, ambitious vision for the future of our industry.

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Growth Mindset

Ruiyuan is a place where careers are built. We invest in our people's continuous learning and professional development.

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Mutual Respect

We honor the values and perspectives of every team member, fostering a culture of inclusion, trust, and open dialogue.

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Excellence First

We hold ourselves to the highest standards — in our work, our relationships, and our commitment to our clients.

History:

✦ SPECIALIZED & INNOVATIVE · 20+ YEARS OF EXCELLENCE ✦

Founded in 2002, we are a leading specialist in high-end electromagnetic wire — integrating R&D, manufacturing and global trade for over two decades.

In 2003, we pioneered the domestic production of ultra-fine enameled wire for the display industry, breaking foreign technological monopolies and filling a critical gap in the market. Today, we are capable of mass-producing wire as fine as 0.012mm, with products covering 6 major categories and 20+ types — including enameled round wire, flat wire, triple-insulated wire, and silk-covered litz wire, with exclusive proprietary technology in natural silk-covered wire.

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20+

Years of Expertise

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Export Markets

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300+

Global Clients

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20+

Product Varieties

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0.012mm

Finest Wire Diameter

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Global Reach

Since our strategic pivot to international trade in 2017, we have leveraged Tianjin's port advantages and a multi-platform acquisition model to rapidly expand into 38 export markets with 300+ global clients, including internationally renowned enterprises.

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Diverse Product Range

Our portfolio spans 6 major categories and 20+ product types, including enameled round wire, flat wire, triple-insulated wire, and silk-covered litz wire — with exclusive proprietary technology in natural silk-covered wire.

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International Certifications

Most products are UL and RoHS certified, fully compliant with IEC and JIS international standards. Our rigorous quality management has earned the trust of leading global enterprises.

Our Journey

Every milestone, a testament to craftsmanship and innovation

2002

Foundation

The company was officially established, focusing on the R&D and production of ultra-fine enameled wire, embarking on a journey of precision craftsmanship in high-end electromagnetic wire.

2002

2003

Breakthrough

We became the first domestic manufacturer to produce ultra-fine enameled wire for the display industry, breaking foreign technological monopolies and filling a critical gap in the Chinese market.

2003

2003 — 2016

R&D Expansion

Continuous investment in core technologies enabled mass production of 0.012mm ultra-fine enameled wire. The product line expanded to 6 categories and 20+ types, with natural silk-covered wire establishing a unique proprietary advantage.

R&D

2017

Strategic Pivot

The company strategically transformed toward international export, leveraging Tianjin's port advantages and a multi-platform digital marketing model to formally enter the global market and begin a new chapter of internationalization.

2017

2017 — Present

Global Expansion

Export markets have grown to cover 38 countries and regions, with over 300 global clients including internationally renowned enterprises. We have become a benchmark company in the cross-border e-commerce sector.

Global

2026

Moving Forward

With over 24 years of expertise, we continue to deliver premium products and one-stop solutions to clients worldwide — committed to becoming the most trusted partner in the global electromagnetic wire industry.

2026

Service:

Ruiyuan has a heritage of innovation. Along with advancements in enameled wire, our company has grown through an unwavering commitment to integrity, service and responsiveness to our customers. As a leading supplier of enamel copper wire, we have earned a reputation for providing a superior customer experience and first-class quality and cooperation.

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We look forward to continuing to grow on the basis of quality, innovation and service.

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Quality First

We rigorously control every stage of production, benchmarking against international standards to deliver products that stand up to the most demanding inspections worldwide.

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Innovation at Heart

From pioneering domestic substitution to mass-producing ultra-fine wire, continuous R&D investment and boundary-pushing innovation are embedded in our DNA.

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Swift Responsiveness

We pride ourselves on fast turnaround and proactive communication — ensuring every client receives timely support, quick quotes and reliable delivery at every step.

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Integrity & Trust

Built on two decades of honest partnerships, we uphold transparency and accountability in every transaction, earning long-term trust from clients across the globe.

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Superior Experience

From first inquiry to after-sales follow-up, we are committed to delivering a seamless, professional and personalized customer experience at every touchpoint.

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Customer First

We deeply understand client needs and grow alongside our global partners — because your success is the foundation and motivation behind everything we do.

PRODUCT CATEGORIES

Enamelled Copper Wire

Rectangular Copper Wire

Magnet Wire

Copper Litz Wire

Ustc Litz Wire

Ultra Fine Enameled Copper Wire

FIW Wire

Self Bonding Wire

Triple Insulated Wire

Voice Coil Wire

Power Line Filter

Switch Mode Transformer

High Frequency High Voltage Transformer

Guitar Pickup Wire

OCC Wire

High Purity Copper 4N-7N

Tianjin Ruiyuan Electric Material Co,.Ltd

Profile

Basic Information

Trade & Market

Our Core Values

Long-Term Vision

Growth Mindset

Mutual Respect

Excellence First

Global Reach

Diverse Product Range

International Certifications

Our Journey

Quality First

Innovation at Heart

Swift Responsiveness

Integrity & Trust

Superior Experience

Customer First