... Output is 30pcs/min, mainly used to hospital, washing foot, sauna, beauty culture, non-dust industry, full automatically ... . Parameter Technical: Model: NK-ZM2050Name: ultrasonic foot mask machine (or ultrasonic foot mask making machine)Power: 5KWVoltage: 220V 50HZOutput: ... chip, controlled by variable frequency motor, accurate operation3, Roller was made of high quality steel, longer useful life ...