According to the filling principle, filling machines can be divided into normal pressure filling machines, pressure filling machines, liquid filling machines, oil filling machines, paste filling machines, sauce filling machines, and granular slurry filling machines. , powder filling machine, vat water filling machine and vacuum filling machine.
Normal pressure filling machine
The normal pressure filling machine fills liquid by its own weight 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, mineral water, etc.

Classification of filling machines

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 liquid flows into the bottle for filling by its own weight, which is called isobaric filling. ;The other is that the pressure in the liquid storage cylinder is higher than the pressure in the bottle, and the liquid flows into the bottle based on the pressure difference. This method is often 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 when the pressure in the bottle is lower than atmospheric pressure. This filling machine has a simple structure, high efficiency, and a wide adaptability to the viscosity of materials, such as oils, syrups, fruit wines, etc.

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