The article substantiates the method of compaction and the parameters of the compactor of raw cotton in an elastic container, which make it possible to increase the productivity of cotton pickers due to the large capacity of the container and the increase in the coefficient of use of shift time. A layered compaction method has been studied, which makes it possible to compact the cotton mass with its continuous flow from the bottom to the neck of the container. Theoretically, the pressure in various layers of the cotton mass, the distance between the inner ends of the sealing elements, the magnitude of the stroke and the speed of movement of the sealer, the volume of the container are determined, the coefficients are found that take into account the elongation of the height of the container and the layering of the seal. All parameters are substantiated from the condition of ensuring high productivity and reliability of the cotton pickers.