Rotary Drum Granulator: The "Revolving Artisan" of Fertilizer Pelletizing

In the diverse world of fertilizer granulation, when the pursuit is efficient continuous production, high sphericity, and uniform particle size, the Rotary Drum Granulator makes its elegant entrance. Eschewing intense external force, it relies instead on gentle rotational motion and ingenious agglomeration principles to shape powdered raw materials into near-perfect spherical pellets. It is not merely a granulating device but a "revolving sculptor" blending physics and chemistry, particularly suited for the large-scale production of fertilizers with stringent requirements on pellet appearance and solubility.
Core Advantage: Gentle Agglomeration for Perfect Spheres
The excellence of the rotary drum granulator lies in its unique dynamic granulation process. Inside a large, slowly rotating drum, materials undergo continuous tumbling and mutual friction. With precisely atomized sprays of liquid binder (e.g., water or solution), fine powder particles grow layer by layer, coating each other like a rolling snowball.
Exceptional Pellet Quality: The pellets produced exhibit high sphericity, smooth surfaces, and uniform size (typically in the 2-5 mm range). This structure grants them excellent flowability, crushing strength, and potential for controlled release, making them ideal base granules for premium compound fertilizers or BB (bulk blend) fertilizers.
Gentle Processing: Unlike the high-pressure shear of a Flat Die Pellet Mill or the intense compression of a Double Roller Extrusion Granulator, the low mechanical stress characteristic of drum granulation maximizes the protection of heat-sensitive components in the raw materials (e.g., certain microbial agents or organic matter) and effectively reduces dust generation.
Superior Continuity and Adjustability: As a continuous production unit, it seamlessly integrates with upstream Double Shaft Mixers and downstream Rotary Drum Dryers, forming a highly efficient automated production line. By adjusting the drum's inclination an