Do you ever wonder what a beverage filling machine is? How does it work? What is the basic idea behind the packaging of your carbonated drinks, water, and wine, etc.?


It can help the manufacturing industry to increase the work efficiency and promote the product quantity, thus the beverage filling machine is an essential equipment during the manufacturing process. They are usually employed for packaging beverage, but they are also widely used for the packaging of many other products, like food and pharmaceutical package. These liquid filling machines require more comprehensive techniques and sterility, hygiene and safety are the basic requirements of liquid food filling machines

However, different products require different beverage filling machines. And these products are packaged in in a prescribed amount in a tin can, a plastic bottle or a glass bottle. 


The beverage filling machines can be classified differently according to their degree of automation. They could be categorized as automatic, semi-automatic and fully automatic machines. 

It is important to note that there are various types of filling machines in the market when we talk about the working principles. Here we will only look at the working principles of liquid filling machine.

Liquid Filling Machine:

Based on the working principle, liquid filling machines are divided into atmospheric pressure, pressure and vacuum filling machines. The ordinary liquid filling machines work by gravity, in which the liquid is filled due to its weight into particular bottles. However, it is necessary to meet special requirements to maintain the viscosity and gas bearing of the fluids. Notable examples of this are milk bottles and grape wine etc.

The vacuum filling machines fill a bottle with the pressure below atmospheric pressure in a bottle. They are suitable for filling high viscosity liquids such as syrup, oil, and fruit wine, etc. This filling machine is very efficient and employs a very simple structure.

The pressure liquid filling machines need to have greater pressure than the atmospheric pressure to be functional. This type of filling is further divided into “equal air pressure filling” and “high-pressure filling.” In “equal air pressure filling,” the pressure of the liquid reservoir gets equal to the pressure of the bottle, and so the liquid proceeds into the bottles by their weights. The high-pressure filling, on the other hand, works by the pressure difference between the liquid reservoir and the bottles. This machine is suitable for filling gaseous liquids, such as beer, soda, champagne, etc.