The key difference between continuous and intermittent VFFS machines lies in how the film moves during the sealing process. Continuous VFFS systems keep the film in motion as the product is filled and sealed, achieving higher speeds and efficiency for lightweight, free-flowing products. Intermittent VFFS machines, on the other hand, pause the film for each sealing cycle, allowing greater control and accuracy for heavier, irregular, or fragile items. Unified Flex designs and manufactures both configurations, helping processors choose the optimal balance between speed, precision, and product handling.