In the production of organic fertilizers, bio-fertilizers, and organic-inorganic compound fertilizers, granulation is a crucial process that gives the product its commercial form, improves application convenience, and enhances market value. Among numerous granulation equipment, the disc granulator, with its classic structure, intuitive operation, reliable operation, and outstanding cost-effectiveness, has always occupied a core position in small and medium-sized fertilizer production lines. Huaqiang Heavy Industry, combining years of technological research and development with project practice, provides an in-depth analysis of the application advantages, precise operation points, and systematic capacity optimization strategies of the disc granulator.