The organic fertilizer granulator machine is the core forming equipment in a bio-organic fertilizer produciotn line, primarily used for granulating organic materials such as livestock and poultry manure, straw, sludge, and well-rotted compost. Unlike the physical mixing process of NPK blended fertilizers, this machine relies on extrusion, rounding, and granulation principles to process loose powdery and pasty raw materials into regular granules, effectively solving problems such as dust generation, moisture absorption, uneven fertilization, and inconvenient transportation and storage of powdered organic fertilizers.

Commonly used models are mainly divided into three types: roller extrusion, disc granulation, and wet stirring tooth granulation, adapted to different material conditions. Roller extrusion granulators are suitable for dry and semi-dry well-rotted materials, requiring no water addition and directly extruding to form high-hardness, non-breakable finished products. Disc granulators produce good pelleting effects and rounded granules, often used in the production of high-quality commercial organic fertilizers. Wet stirring tooth granulators are highly adaptable, less prone to clogging, and suitable for granulating wet materials such as high-moisture straw and manure.

This equipment boasts wide adaptability, enabling the resource utilization of various organic solid wastes. The production process is green and environmentally friendly, with zero emissions of pollutants. The equipment features a simple structure, stable operation, low failure rate, and convenient maintenance, meeting the continuous production needs of organic fertilizer plants of all sizes. The granulated product produces uniform particles with moderate strength, resulting in high throughput during subsequent drying, cooling, and screening. The finished product is less prone to clumping, making it suitable for mechanized fertilization. It also offers a longer storage period, low energy consumption, and stable production capacity, flexibly adapting to different production line scales.

Key processes must be controlled during production: materials must be fully decomposed to prevent mold and spoilage; moisture content must be strictly controlled, with dry material extrusion controlled at 20%–30% and wet granulation at 30%–40% to prevent material blockage or loose particles. Uniform feeding and avoiding overloading are crucial. Regular cleaning of residual materials and proper lubrication and maintenance of transmission and bearing components are essential to ensure high granulation rate and long equipment lifespan.