Double roller press granulators are key equipment in modern fertilizer production. Thanks to their unique working principle and processing features, they’re especially well-suited for handling a variety of fertilizer materials. This granulation method operates at room temperature without drying, making it energy-efficient and environmentally friendly while preserving fertilizer nutrients. It has become a top choice for many fertilizer manufacturers.

1.Organic Fertilizers

Double roller press granulators are ideal for processing organic materials like livestock manure and decomposed straw. They effectively compress organic matter into particles with moderate density and good strength, making them particularly suitable for manure-based organic fertilizers and composted agricultural waste.

2.Compound Fertilizers (NPK)

For NPK compound fertilizer production,double roller press granulators offer distinct advantages: precise control over nutrient ratios, uniform mixing of multiple raw materials, and maintained chemical stability. They work especially well for medium-to-low concentration compound fertilizers.

3.Microbial Fertilizers

The low-temperature process of roller press granulation perfectly protects microbial agents:Prevents heat from killing beneficial bacteria. Produces granules with suitable porosity for microbial survival. Facilitates storage and transportation. Extends the shelf life of microbial fertilizers

4.Micronutrient Fertilizers

For specialty fertilizers containing zinc, iron, manganese, or other trace elements:Ensures even distribution of micronutrients. Prevents ingredient segregation. Improves micronutrient availability. Reduces nutrient loss.

In summary, double roller press granulators—with their unique technical strengths—have become ideal equipment for producing organic fertilizers, compound fertilizers, microbial fertilizers, micronutrient fertilizers, and slow-release fertilizers.