This article presents an analysis of picker drum covers for effectively cleaning cotton from fine impurities. In traditional cleaning drums, the uniform arrangement of the spikes consistently impacts the cotton and trash, leading to decreased cleaning efficiency and potential damage to the trash. To address this, two-, three-, and four-layered drum constructions were developed and tested under laboratory conditions. The experimental results indicate that the threelayered drum is the optimal solution, achieving a cleaning efficiency of 54.8% and a trash impact rate of 0.3%. The zigzag arrangement of rubber paddings installed at the junctions of the covers, combined with the continuous cleaning of the mesh surface, softens the impact on the cotton, thereby reducing trash damage.