Used for cleaning grain in flour mills and silos. It is also called a classifier. It is used in pre-cleaning, cleaning and milling preparation units in flour mills and grain cleaning plants. The metal body consists of a two-deck profile frame. The product entering the machine spreads over the screen surface by vibro motor vibration and is screened. Foreign materials such as waste, straw and ears are conveyed out by vibration. Screen sheets are cleaned with plastic balls. Screen inclination can be adjusted with an adjustment lever. It has mica glass inspection windows and removable screen frames.