Vertical Fillers are designed to package dry products that cannot or are difficult to transport and control over a conveyor. Granules such as beans, powders such as talc, and pieces such as potato chips all fall into this category.

A VFFS system consists of two components: The Filler or Dosifier, which takes unmeasured quantities of product and rearranges them into measured, repeated doses; The Wrapper forms a bag from one or more rolls of material and, once the product is inserted onto the bag, seals the bag so the product is safely packaged within.

Most Products are filled with three types of Fillers: The Volumetric, The Weigher or Scale, and the Auger.