In powder packing machines, the product is discharged into the package by turning the auger screw. The filling process ends when it reaches the desired weight. The precision of the screw filling machines is very high. Usually a screw or belt conveyor can be used as the feeding element of the machine, Packaging machines are used to package products or components. This product area includes equipment that forms, fills, seals, wraps, cleans, and packages at different levels of automation. Packaging machines also include related machinery for sorting, counting, and accumulating, Heat sealing machines melt plastic film or adhesive together to seal a package. In addition, some sealers also have shrink wrapping capabilities, vacuuming air from the package before sealing to ensure a tight fit