Filling lines are automated machines or equipment used to fill liquid or semi-liquid products into bottles, cans, containers or other forms of packaging. Filling lines are used in various industries, such as the beverage, food, chemical, pharmaceutical and cosmetics industries. Filling lines can use different filling technologies depending on the application and product type, such as volumetric filling, weight or mass flow filling, tubular bag filling, filling under vacuum or pressure, and aseptic filling for sterile products. Modern filling lines are often fully automatic and can fill large quantities of products with high speed and accuracy. They can also be integrated with other systems such as labeling, capping or packaging machines to automate and optimize the entire filling and packaging process.