Equipped with 4 kind of angle rotors , and widely used in hospitals , scientific research , academies for users? selection . TECHNICAL PARAMETER: ◆Model: TDZ4-WS ◆Max Speed: 4000r/min ◆Max RCF: 2200xg ◆rotor Capacity:18x10ml,12x20ml,12x10ml,4x50ml ◆Motor: NO brush DC Motor ◆Time Range: 0～99min ◆Power Supply: Ac220V 50Hz 2A ◆Noise: ≤60dB(A) ◆Dimension:320x365x280mm (LxWxH) ◆Weight:18kg