... , Pre-cleaning sieve Double drum pre-cleaner can effectively clean out light impurities,big impurities,fine impurities etc. from grain; ... and behind the pre-cleaner.3.Cyclone is used for clean big dustAnd also have some other dedust system, We ... bin.Meanwhile,we can alsoproduce the supplementary equipments such as bucket elevator, scraper conveyor, belt conveyor,dry machine, Temperature Monitoring ...