Automatic Packaging Machines for 4-Side Seal Pouches

A 4-side seal pouch is produced by aligning two film layers of the same size and shape, then heat-sealing all four sides to form a fully enclosed flat pouch. This pouch format offers uniform appearance and strong sealing integrity, making it suitable for automated packaging of products that require stable, well-defined presentation. It is widely used for packaging food, powders, pet food, and other products.