Liquid vertical packaging machine is a mechanical equipment that can automatically package liquid products into quantitative bags or bottles. Its working principle is to organically combine the processes of liquid supply, bag or bottle production, filling, sealing, cutting, and finished product export, thereby achieving fast, efficient, and accurate packaging of liquid products. Liquid supply is the first process of liquid vertical packaging machine. There are usually two supply methods: gravity supply and pumping supply. Gravity supply refers to the flow of liquid stored in a tank to the filling head by gravity, which is suitable for simple equipment with limited packaging. Pumping supply is the process of pumping the liquid stored in the tank to the filling head, suitable for production with high packaging requirements, high production demands, and high-end production lines. The working principle of the liquid vertical packaging machine includes liquid supply, bag or bottle production, filling, sealing, cutting, and finished product export. Through organic combination, it achieves fast, efficient, and accurate packaging of liquid products. Choose appropriate technologies and products to meet the diverse needs of users.