For thick products such as sauces, creams, or pastes, these machines use dedicated piston or servo-driven dosing units. These filling systems push the product into the pouch in a controlled and steady way, so the pouch is filled evenly, and the seal area stays clean, which helps avoid leaks and ensures a tight, reliable seal.

When packaging lotions or gels, it is important to check that the filling system is suitable for the product’s viscosity, that the sealing is neat and consistent, and that the pouch shape and finish support the brand’s visual image, especially for small, premium products where appearance and packaging quality strongly influence customer perception.