The quantitative packing machine is a large-scale weighing packaging equipment for packaging materials in large bags. It is a multi-purpose packaging machine integrating electronic weighing, automatic bag removal and dust removal. The ton bag packaging machine has a high degree of automation, high packaging precision, and the packaging speed can be adjusted. It is widely used to pack pellets, chips or powder from wood pellet plant, food and oil industry, fertilizer, rubber or plastics fields.