Efficient granulation and drying are necessary to producing consistent fertilizer granules; our rotary drum spray dryer granulator is designed to combine these processes. By atomizing raw material slurry and spraying it onto a bed of recycled materials, the granulating machine integrates granulation, drying, and screening in one continuous process. Key components include the main and auxiliary drive systems, the drum body, knocking device, support roller system, sealing system, feed/discharge boxes, and the atomizer, all working together to ensure smooth operation and high-quality output.