Introduction With our vast experience in traction motor market, seeking independent innovation and applying ac variable frequency speed control technology, we designed, tested and manufactured ranges of traction motor with frequency inverters, such as yvf series, ybvf series, ytvf series, and we also provides ranges of dc traction motor, such as zq series and zqb series. Applications As the prime power unit, our products are designed and manufactured to meet the typical requirements of a variety of applications in both narrow and standard gage railway transportation systems of metallurgy, mining, lumbering, railway and subway. The wide range of our motor platforms can be custom engineered to meet the power, size, efficiency, the force/torque requirements and integration needs of the customer's application.