The Automatic Packing used in grain, cereals and food processing plants in the storage and automation systems. Automatic Packing allows the final product to be packaged in any desired size. The weighing process is carried out by one or two weighing units installed together. Once the weighing process has been carried out, the weighing unit will not open the covers and wait until a warning is received from the bag hold switch. After receiving a warning, the caps are opened and the weighed flour is poured into the bag. The bag is moved to the conveyor belt after filling is completed and its mouth is automatically sewn. The machine speed is adjusted according to the product type and bag size.