Filling machines can be divided into atmospheric filling machines, pressure filling machines, liquid filling machines, oil filling machines, paste filling machines, sauce filling machines, and granular slurry filling machines according to the filling principle. , powder filling machine, vat water filling machine and vacuum filling machine.

Atmospheric pressure filling machine

The atmospheric pressure filling machine is filled by the weight of the liquid under atmospheric pressure. This type of filling machine is divided into two types: timed filling and constant volume filling. It is only suitable for filling low-viscosity and gas-free liquids such as milk, liquor, and mineral water.

Pressure filling machine

Filling is carried out at a pressure higher than atmospheric pressure, and can also be divided into two types: one is that the pressure in the liquid storage tank is equal to the pressure in the bottle, and the filling is performed by the liquid flowing into the bottle by its own weight, which is called isobaric filling. ; The other is that the pressure in the liquid storage tank is higher than the pressure in the bottle, and the liquid flows into the bottle by the pressure difference. This method is mostly used in high-speed production lines. The pressure filling machine is suitable for filling liquids containing gas, such as beer, soda, champagne, etc.

Vacuum filling machine

Filling is performed at a pressure below atmospheric pressure in the bottle. This kind of filling machine has simple structure, high efficiency, and can adapt to a wide range of viscosity of materials, such as oil, syrup, fruit wine, etc.