KY series single-phase thyristor voltage regulating and speed regulating device is the latest simple device of our company. All of them adopt intelligent control circuit designed by Kaiyue Company to control thyristor in full wave, digitize induction of motor speed through specific sensors, and then convert it into analog voltage to realize speed regulating. Because of the special circuit, the motor speed can be effectively controlled, especially the variable load mechanical speed can be guaranteed to be stable and the rigid torque characteristics can be obtained. The product has the advantages of high reliability, strong economy, stable performance, good torque characteristics and power saving. It can be widely used in textile, printing, pharmaceuticals, food, packaging, chemical industry and other industries, as well as pumps, fans, etc. to speed up and load up.