Use the vacuum constant liquid-level working principle, fill liquid accurately. If the liquid level is over the position that marked by red line, the machine will suck the extra liquid and make it back flow to the material container. There is a spring for each nozzle, that can prevent the bottle from breaking due to larger air pressure.

Equipped with high quality electric eye, each nozzle can be controlled to fill liquid when the electric eye receives and sends out signal to the system. The white bottle fixing component can help to fix bottles when the machine start to work, prevent the bottle from falling down.