The principle of filling machine

Liquid beverage filling machines can be divided into normal pressure filling machines, isobaric filling machines, negative pressure filling machines, oil filling machines, and barrel water filling machines according to the filling principle.
Normal pressure filling machines
Filling is done by the liquid's own weight under atmospheric pressure. This type of filling machine is divided into two types: timed filling and fixed volume filling, which are only suitable for filling low-viscosity liquids without gas, such as milk, liquor, mineral water, etc.
Pressure filling machines
Filling is done under pressure higher than atmospheric pressure, and can also be divided into two types: one is that the pressure in the liquid storage cylinder is equal to the pressure in the bottle, and the liquid flows into the bottle 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 by pressure difference. High-speed production lines mostly use this method. Pressure filling machines are suitable for filling gas-containing liquids, such as beer, soda, champagne, etc.
Vacuum filling machines
Filling is done when the pressure in the bottle is lower than atmospheric pressure. This filling machine has a simple structure, high efficiency, and a wide range of material viscosity, such as oil, syrup, fruit wine, etc.
Oil filling machine
It can fill various oil products, such as edible oil, lubricating oil, peanut oil, soybean oil, etc. This type of filling machine is a filling machine specially developed for filling oil materials, which can realize flexible configuration of manual operation and unmanned operation, such as edible oil filling machine. According to the metering method, it can be divided into flow meter type. Piston type. Weighing type, etc. According to the equipment style, it can be divided into linear type and rotary type, etc.