In this article, according to the quality indicator of the fiber produced from the preliminary processing of machine-picked cotton, Akmal Ikromov
of Jizzakh region, which has one-drum 1VPU type fiber cleaners, and Dostlik cotton ginning enterprises, which has two-drum 2VPM type fiber cleaners. An analysis of the results of experimental research conducted at the Guliston cotton ginning enterprise of the Syrdarya region and the Boka cotton ginning enterprise of the Tashkent region was presented.