For many years, mechanization of harvesting and threshing has been successfully implemented for various crops and has been developed depending on technological progress. However, the processes of threshing, separating and cleaning of medicinal aromatic plants are carried out by conventional methods (by hand) after the products are dried. This case leads to damage in the product, loss of labor and yield. In order to help to overcome these disadvantages and separate the dried products from the foreign materials such as stalk, spall and dust special separating systems designed depending on the plant are needed.