The difference between UM-1920 and UM-1930 is that UM-1920 drives 20 dental chairs to work，and the current and power are less.
Voltage: 230V 50Hz
Air tank volume: 300L
Gas tank weight:78kg
Main unit size:135 * 55 * 110cm
Tank size: 60 * 60 * 165 cm
1.For insuring the safety, compressor work the hour strictlies forbid to touch on board any a piece.
2.This machine is for having no oil compressor, strictlying forbid toencourage the lubrication.
3.The environment temperature of this machine usage is 5℃ ~ 40℃.
4.Cleaning must not sprinkle water on the whole board, apply dry cloth to wipe clean, the dust above, be careful to smash.
5.Use to please cut off the power awitch after completing.