concretesubmarine.com/ FORUM

The VFFS Packaging process starts by forming a pouch or bag from a roll of packaging film. The film is pulled down vertically from the roll and formed into a tube. The bottom of the tube is sealed by a horizontal sealing bar, and the product is then dropped into the tube from a filling system located above. The top of the tube is then sealed by another horizontal sealing bar, and the tube is cut to create an individual package.

Visit for more details:- https://www.yscpackagingmachine.com/vffs-packaging-c-4.html