In terms of technical principles, organic fertilizer granulators primarily compress fermented organic waste-such as livestock and poultry manure, crop straw, and municipal sludge-into granules through physical extrusion or rotary granulation. This granulation process not only enhances the density and stability of the fertilizer but also facilitates its storage, transportation, and application. Depending on the granulation method employed, these machines can be categorized into various types, such as extrusion granulators, disc granulators, and rotary drum granulators.
