Precision-engineered copper conductors designed to eliminate skin and proximity effect losses in high-frequency applications.
Driving Innovation Across Automotive Electrification, Renewable Grids, Aerospace, and UK Research Hubs
The United Kingdom's advanced manufacturing landscape is undergoing a massive transformation toward high-efficiency electrification, green energy storage, and compact high-frequency power electronics. From the tech innovation corridors of Oxford and Cambridge to the automotive powerhouses in the West Midlands and offshore wind developments off the coast of Scotland, demand for specialized electromagnetic components has reached an unprecedented high.
As electrical topologies shift to ultra-high operational frequencies (ranging from tens of kilohertz to multiple megahertz) to achieve compact form factors and higher efficiency, standard solid copper wire fails due to severe AC losses caused by the skin effect and proximity effect. High-performance Litz wire—composed of multiple individually insulated fine wire strands braided in precise geometric patterns—is the essential component enabling these modern UK technologies.
Empowering UK electric vehicle manufacturers with custom ETFE and Kapton-taped Litz wire optimized for high-power on-board chargers (OBC) and dynamic wireless power transfer (WPT) systems.
High-frequency transformers and inductors in offshore wind power converters and solar grid inverters require ultra-low AC resistance to maximize grid transmission efficiency across the UK network.
Providing low-weight, temperature-resistant magnet wires meeting stringent standards for UK defense contractors, satellite power modules, and specialized aviation electronics.
Empowering Small-Batch Innovation, Rapid Prototyping, and Flexible Supply Chains
Traditionally, procuring specialized custom Litz wire or profile-shaped silk-covered magnet wire required commitment to massive minimum order quantities (MOQs), often reaching hundreds of kilograms. For university research laboratories at Imperial College London, Cambridge, or Manchester, as well as fast-moving UK tech startups and specialized SME winding shops, high MOQs represent an insurmountable barrier to innovation.
At Tianjin Ruiyuan Electric Material Co., Ltd. (Ruiyuan), we break down these barriers by offering industry-leading Low MOQ policies combined with rapid delivery. Whether you require a single 5kg sample spool for magnetic circuit validation or a custom-engineered multi-strand Litz wire for prototype motor coils, our low MOQ model empowers UK engineers to iterate rapidly without capital lock-up or material wastage.
Over 20 Years of Dedicated Excellence in Fine Enameled Copper Wire & Custom High-Frequency Litz Wire
Tianjin Ruiyuan Electric Material Co,. Ltd. (Ruiyuan) was established in 2002. In the past 20 years, we have been thinking one question: "How to Satisfy Customer". That constant drive has inspired us to expand our product lines from fine enameled copper wire to litz wire, USTC, rectangular enameled copper wire, triple insulated wire, and guitar pickup wire—spanning 6 main types with over 20 kinds of magnet wire.
Here you will enjoy a One-Stop Purchase Service with cost-effective pricing, where quality is the last thing you need to worry about. We wish to help you reduce costs, save valuable R&D time, and establish long-term Win-Win strategic cooperation.
What we have been doing over the last 20 years is pursuing our core operation philosophy: "Customer Oriented, Innovation Brings More Value". This is not just a slogan; it is a core part of our DNA. Unlike ordinary magnet wire providers who only offer a rigid, specified size range, we act as a complete solution provider—combining deep expertise in magnet wires, insulation materials, and your end-use high-frequency applications.
One of our major European automotive customers required high-frequency litz wire for wireless automotive charging systems. The application called for exceptional solvent resistance performance and a flame retardancy rating following UL94-V0. Standard insulations available in the market could not meet these strict requirements, and existing specialized alternatives were prohibitively expensive.
After extensive technical evaluation, our R&D team proposed an innovative custom solution: extruding high-performance ETFE insulation directly over the surface of the customized Litz wire. Following a rigorous one-year verification and multi-stage testing process, all mechanical, chemical, and electrical challenges were perfectly solved. The project progressed to mass production, delivering superior reliability at a competitive cost structure.








Explore our complete range of specialized stranded and rectangular conductor solutions.
Everything you need to know about purchasing Litz Wire, low MOQs, customization, and lead times in the UK and worldwide.
Yes. Samples are either free or charged based on specifications, but the shipping cost is borne by the customer.
Sample orders: 3–5 working days; bulk orders: completed within 15 working days after order confirmation.
Within 2 years, any quality-related issues will be covered by a one-time full replacement of defective products.
Submit inquiry with requirements → Sample making → Sample approval → Quotation → Proforma Invoice (PI) → PI confirmation → Payment arrangement → Production → Shipment.
EXW, CPT, FOB, CIF, DDU, and DDP are all fully acceptable.
Yes, custom dimensioning, silk serving, self-bonding layers, and profile shaping are supported with low negotiated MOQs.
We accept T/T, D/P, L/C, and PayPal.
FedEx, DHL, TNT, and UPS, with tier-1 carrier discounts up to 80% passed on to customers.
We offer a full range of high-frequency magnet wire products (Litz wire, rectangular wire, TIW, etc.) with small-batch low MOQ support, ensuring top quality and fast delivery during your R&D or expansion phase.
A mold fee applies only for special custom profile shapes. The fee depends on specifications and is fully refundable once target order quantities are achieved.
Yes, but our MOQ is among the lowest in the industry, determined specifically based on the wire gauge and insulation type.
Laser diameter gauges, high-voltage spark testers, elongation testers, spring-back testers, withstand voltage testers, solderability testers, Resistance Testers, and thermal index analyzers.
Litz wire, rectangular enameled copper wire, magnet wire, self-bonding wire, TIW (triple-insulated wire), OCC wire, silver wire, and silver-plated wire.
Ideal for high-frequency AC environments requiring high efficiency and space-saving: power electronics, EV on-board chargers, wireless charging, green energy, communications, medical MRI equipment, industrial robotics, and servo motors.
Major markets include Europe (UK, Germany, Italy, France) and North America, as well as South Korea, Japan, India, and Southeast Asia.
We offer comprehensive magnetics options under one roof, short lead times, low sample costs, and customized mixed batches to streamline your procurement.
We routinely sign non-disclosure agreements (NDAs) prior to engineering reviews and commit to strict confidentiality throughout the partnership.
Premium quality enameled copper wires, silk-covered Litz wires, and custom insulated solutions.
100% Open and Delivering On-Time. As a leading supplier of enamel copper wire, we have earned an international reputation for providing a superior customer experience, first-class quality, and seamless operational cooperation.
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We sincerely welcome engineers, procurement directors, and researchers from across the United Kingdom and global markets. Partner with us for reliable custom wire solutions and low MOQ flexibility.
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