Grain cleaning there by imparting High Technology with Ease of Operation in the field. Pre cleaner has been designed of Pre cleaning of grains ,The difficult impurities like Large stones, large soil clods , Strings, Straws , hemp rope loose sticks Etc in the material are checked and removed by the top Drum Separator. This uses a drum sieve for efficiently removing such long and light impurities. This Pre cleaner screen are fitted in waterproof wooden ball frames