The 4-column back-sealed liquid packaging machine is a highlyefficient packaging tool. It can automaticallycomplete bag making,metering, filling, sealing, and cutting processes. It adopts a PLCcontrol system with a smart touch screen, which is easy to operateand allows for precise parameter adjustment. It can package dozensofbags per minute and is suitable for use in the food, dailychemicaland pharmaceutical industries, It can package a varietyofmaterialssuch as shampoo, oral liquids, and seasoning sauces, helpingenterprises achieve efcient production.