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Equipment catalogue > PET bottling > Equipment for drinks filling into PET bottles

Content:
    Filling types:
       - gravity and low vacuum filling ;
       - fine vacuum filling;
       - volumetric filling .
    Filling machines field of application.
    Additional information inquiry.

Filling is the main operation of any drink filling process. There are two types of filling machines manufactured:
  -simple machines: for filling only;
  - monoblocks, triblocks, quadroblocks: one machine carries out several operations. For example, monoblocks mostly carry out operations on filling and bottles capping.

Filling types.

Gravity and low vacuum filling. This type of filling is perfect for still and non-viscous liquids, such as non-aerated water, wine, spirit-based drinks (vodka, liquer, cognac), pure fruit juices, vinegar, milk, chemical products and foodstuffs.

Product infeed is regulated automatically by a stainless steel solenoid-operated valve with a modeling drive. Each filling head is directly connected with a filling tank and opend only when the bottle neck presses and opens a special hermetic gasket. The product coming from the tank comes out through four outlets in the filling head and then along the sides of the filled container. At the same time, the air comes out from the PET bottle through the upper outlet of the filling head and arrives into the tank or, if the filling process is fitted with a separate air channel, is brought outside. These outlets provide a high filling accuracy without using additional filling level control devices. Filling level can vary by changing the filling head immersion depth into a container.

Special filling valves application in combination with the machine design allows level regulation with pitch of 1 mm (maximum +- 10 mm) from the machine control panel.

When using low vacuum, a special pump makes discharge in the tank, and the moment the filling head is opened, the low vacuum is delivered into the bottle through an air tap channel. As a result, if a container has a split or a mis-shapen mouth, it will not be filled, thus preventing liquid falling onto the machine base.

Design of all filling head types allows to avoid contacts between gases contained in the tank and the ambient air. Filling heads are easily removable and disassembled, and fitted with a device holding heads opened for washing operations.

Fine vacuum filling. Fine vacuum filling is used for viscous fluids filling (oil, syrups) into PET bottles. Unlike gravity filling, here the filling begins by vacuum making in a bottle, that ensures quick bottle filling with product.

After reaching a set level, product surplus is collected in a small vessel placed above the main one. Before coming back into the main vessel, the product arrives into a relay one. Vacuum level can be regulated depending on the product density to reach required filling capacity.

Volumetric filling . Volumetric filling ensures the accuracy of the product set volume filling into a PET bottle (with maximum error ±1.5 ml at 1 litre volume), independently of product density and defferences of containers real capacity. Therefore volumetric filling is used when it is necessary to fill an expensive product or a very dense one.

Though the filling turret design is similar to the one of the two previous filling systems, the fillers system design, consisted of two stages, is absolutely different. During the suction cycle, the product comes from the tank to a measuring cylinder through a triple valve, which measures the product.

For the cylinder evacuation, the triple valve activates a pneumatic valve controlling the piston: the product under pressure is poured out from the cylinder into a container. Filling rate regulation is possible in the upper part of the container, where the filling rate must be slower, to avoid scumming or spraying.

Filling machines field of application. Automatic filling machines are used in automated processing lines at food industry enterprises for the following:

• For automatic filling of still (non-aerated) food liquids under low vacuum:
• at distilleries, wineries and strong drinks filling and packing plants: wine, vodka, cognac, liqueurs, low alcohol and other non-aerated drinks;
• at enterprises producing soft non-aerated drinks, fruit juices, natural mineral water.
• For isobaric filling (under pressure) of aerated food liquies:
• at wineries, breweries and strong drinks filling and packing plants: sparkling wines, champagne, beer, low alcohol and other aerated drinks;
• at enterprises producing soft aerated drinks, mineral water, lemonades etc.

Additional information inquiry. Additional information on PET bottling equipment models, technical characteristics, prices will be given upon Your enquiry.