A liquid filling machine is a machine used to fill liquid products into containers. They are widely used in various industries such as food and beverage, cosmetics, pharmaceutical and chemical industries, etc. Liquid filling machines can be divided into several types according to their working principles and functions.
First of all, there is a common liquid filling machine which is the gravity filling machine. It uses gravity to naturally flow liquid from the storage tank into the container. This filling machine is suitable for low viscosity liquids such as water, juice and alcohol. Gravity filling machines are simple to operate and low in cost, but they are not suitable for high-viscosity liquids.
The second type is a pressure filling machine. It uses air pressure to push liquid into a container. This filling machine is suitable for high viscosity liquids such as oil, honey and colloidal substances. Pressure filling machines can adjust filling speed and pressure to ensure that each container receives the exact amount filled. However, it is more expensive and requires additional air sources and control systems.
Another common liquid filling machine is a vacuum filling machine. It uses negative pressure to draw liquid into a container. Vacuum filling machines are suitable for liquids that are easily oxidized, such as alcohol and cosmetics. It prevents liquids from oxidizing and deteriorating, maintaining product quality and taste. However, the operation of vacuum filling machines is complex and requires additional vacuum equipment and sealing systems.
Finally, there is a type called a volumetric filling machine. It uses volumetric metering to control filling volume. This filling machine is suitable for liquid products that require precise filling amounts, such as pharmaceuticals and chemicals. Volumetric filling machines can be adjusted as needed to ensure each container is filled with the exact amount. However, it is costly and requires precise metering equipment and control systems.
In short, liquid filling machines can be divided into several types according to their working principles and functions, such as gravity filling machines, pressure filling machines, vacuum filling machines and volumetric filling machines. Choosing a suitable liquid filling machine depends on the viscosity, oxidation properties and filling volume requirements of the liquid. Understanding the different types of liquid filling machines will help choose the most suitable machine and improve production efficiency and product quality.