The checkweigher is a machine used in the packaging industry to ensure that the weight of a packaged product is within a certain range.  It is commonly used in the food industry to ensure that packaged food products,  such as bags of chips or boxes of cereal,  contain the correct amount of product. Check weighers can be used in a variety of packaging applications,  including bags, boxes,  cans,  and bottles. They are often integrated into packaging lines to ensure that each package is filled correctly and meets quality control standards.  Checkweighers are an important tool for ensuring product quality and reducing waste in the packaging industry.