The ring die granulator is a core piece of equipment in organic fertilizer production lines. Its performance directly affects pellet formation rate, production efficiency, and product quality. Optimizing it not only increases output but also cuts energy use and lowers maintenance costs.

1.Die Hole Size and Compression Ratio
Adjust hole size based on material properties: Different organic raw materials (like livestock manure, straw, or sludge) have varying viscosity and moisture levels, requiring different hole sizes (typically 2.5–6 mm).
Optimize compression ratio: Too high a ratio increases energy use; too low affects pellet hardness. Adjust based on material (generally 1:5–1:8).
2.Raw Material Moisture and Fineness
Control moisture at 20%–30%: Too high causes clogging; too low hampers shaping. Adjust through drying or water spraying.
Keep particle size ≤1mm: Finer material improves granulation, reduces return rate, and boosts output.

3.Roller and Die Compatibility
Set roller gap (0.1–0.3mm): Too wide lowers forming rate; too narrow speeds up wear.
Check roller wear regularly: Uneven wear causes inconsistent pellets. Replace or repair promptly.
4.High-Quality Wear-Resistant Materials
Use alloy steel or carburized rings to improve wear resistance and extend service life.
Apply surface hardening to rollers to reduce friction and replacement frequency.

By rationally adjusting the ring die parameters, optimizing raw material processing, and strengthening equipment maintenance, the output and stability of the fertilizer granulator can be significantly improved. This improves efficiency while lowering operating costs, delivering greater value for producers.