Super thin polyurethane UEW enameled copper winding wire

As electronic products in market tend to be small-sized and sophisticated, enameled copper wire, a vital material for electronic products, is getting thinner and thinner.

With nearly 20 years of accumulated experience in magnet wire technology, the finest diameter that we make is 0.011mm, which is close to one-seventh of human hair.

To produce such a wire with fine diameter, we need to confront with great difficulties in drawing and painting of copper conductor.

Ultra-fine enameled copper wire is our best-selling products in our target market.

RUIYUAN was established in 2002, located in Tianjin City,the second largest port city in China.We have been focusing on different kinds of high quality wires: enameled round copper wire, rectangular enameled copper triple insulated wire, silk covered Litz wire, bonding wire and special enameled wire for 21 years.Ruiyuan is one of the pioneers in producing micro thin enameled wires below 0.03mm in China. Our R & D team has 20 years of market experience. In 2019, our finest diameter is 0.011mm, and mass production has been achieved. All of our products are UL, RoHS certified, in line with industry standards IEC60317, JIS C 3202, NEMA, NW82.