Max.speed: 6000 r/min Max.volume: 6 x 1000 ml Max.RCF:6600 xg Timer:1~99h59min Power supply: AC220V 50HZ ... cell collection.Features: Brushless frequency motor which in great torque, free maintenance, no powder pollution, quick in speed up and down ... in operation,low noise and small vibration.Import compressor fluorine free, double cycle cooling, cold and hot alternative easily, environment pollution ...