filling machine
filling machine

Know what a filling machine is all about?

Have you ever asked yourself what a filling machine is? How it works? What's behind the packaging of your favorite carbonated drink, milk, and wine, etc.?

A filler is an essential tool in the manufacturing industry. It ensures the quality and effectiveness of products during the manufacturing process. Normally, they are used for the packaging of foods ( ) and beverages, but may be used to package many other products as well.

Different fillers are needed for unlike products. All of these products are pack in specific amounts in cartons, plastic bags or bottles.

The degree of automation and materials used are at the base of how these fillers are classified differently. They may be categorized as automatic, semi-automatic or fully automatic machines. In addition to being liquid fillers, gas fillers, paste fillers or powder fillers.

You must consider that there are numerous kinds of fillers on the market and it's essential to consider the working principles of each of these. Hence, we will focus only on the working principles for liquid, gas and adhesive fillings.

Gas Fillers:

“Gas fillers” are very straightforward. They have a booster pump which creates pressure differences, necessary for filling. This gas booster is very similar to a gas compressor. Carbon dioxide, coal gas and natural gas are just a few examples of these filling materials.

Liquid Fillers:

Considering the working principles, liquid fillers are divided into ordinary, pressure and vacuum filling machines. Ordinary liquid fillers work thanks to gravity; the liquid passes into the bottle because of its weight. However, special requirements must be met so as to maintain the viscosity and gas bearing of the fluids. Examples of such are milk and wine bottles.

Vacuum fillers need for the atmospheric pressure to be greater than the pressure of the bottles. Liquids like syrups, oils and wine, etc. have a high level of viscosity and require this efficient style of filling with its simple structure.

Pressure liquid fillers need pressure greater than atmospheric pressure in order to work. This method of filling is additionally divided into “equal air pressure filling” and “high-pressure filling”.The pressure of the liquid reservoir must be equal to the pressure of the bottle so the liquid can flow into the bottles by their weights in “equal air pressure filling”. On the other hand, “high-pressure filling” works due to the pressure difference between the liquid reservoir and the bottles themselves.

Paste Fillers:

Paste fillers use a volumetric method for measuring and controlling the filling quantity of the pastes. This efficient method is easy to maintain and particularly handy for highly viscous products.

At the base of this machine is a self-priming cylinder where a piston can easily move. The diameter of the piston along with the lengths of the strokes determine the volume of the filling. Considered extremely accurate, volumetric fills have a constant volume flowing into the cylinder on the piston.