(1). Microcomputer Control (2). Brushless DC Motor, no dust pollution (3). Multi-function with large-capacity rotors, user-friendly selection It is characterized by computer control, frequency control of motor speed, DC motor without brush, no pollution, multifunctional large capacity rotor, for convenient use. Model: TD5A-WS Max Speed: 5000r/min Max RCF: 4390xg Timer range: 0 ~ 99min Electric motor: Brushless DC motor Noise: <60dB (A) Power Supply: AC220V 50Hz 6A Dimension: 600*500*430mm (L*W*H) (mm) Weight: 40kg Various rotor available.