In this article, it was studied that when cotton-cleaning saws 3XDDM type 86 were replaced at cotton-cleaning enterprises with 130 saws 4DP-130 and 5DP-130, the productivity of the gin did not increase significantly. When cleaning high and low grade cotton, the actual fiber capacity o 130 sawmills is 1200-900 kg/h on average, and it has been found that it is on average 40-45% less than the performance under technical conditions. characteristics. As a result of the research work, it was determined that it is necessary to develop improved saw cylinders for 130 saw blades, which increase the efficiency of the saw, save energy, and reduce vibration.