A filling machine is a packaging machine that loads a precise number of packages into various containers. The main types are: 1. Volumetric filling machine. Including measuring cup type, intubation type, plunger type, material level type, screw type, timing type filling machine. 2. Weighing type filling machine. Including intermittent weighing, continuous weighing, weighing - centrifugation and other filling machines. 3. Counting filling machine. Includes single-piece counting and multi-piece counting filling machines.