Negative pressure filling machine is mainly used in filling of foaming liquids, such as wine, soy sauce, vinegar, pesticides, etc.Principal features Negative pressure filling machine: Level positioning accuracy, better than the industry standard, non-drip, tight and reliable seal. Broken bottles not filling, not spilling fluid, clean and hygiene. Automatic adapt the error of the height of bottles, frequency conversion speed regulator, soft start, soft-braking, non-rigid impact, stability and reliability working.