Instruction 

Double roller granulator is a key fertilizer equipment in compound fertilizer granulation. Roller-type granulator is a new-designed fertilizer roller compaction granulation device developed & researched by ourselves. Materials are granulated at room temperature, and there is no drying process, more energy-saving and cost-reducing. With the characteristics of small investment, large profits, and quick results, the double roller compactor granulator will bring investors bigger economic returns. It can be used in compound fertilizer production with high, medium and low concentration.

Working principle 

The double roller fertilizer granulator machine is the representative of extrusion granulator. Dry materials are compressed into hard & dense blocks at a pressure, which is the Extruding Process. Block materials are crushed, screened and granulated later, which is the Granulating Process. The functions of extrusion are to squeeze the air between particles out, and to make the distance between particles near enough to give rise to interaction forces. The particle hardness of roller compaction granulation granules is formed mainly due to attraction between the molecules. Our double roller press machine is continuous extruding granulation of positive-displacement.

Remark:finished granules by this roller press machine is oval shape, if you want round ball shape granules,a ball shaping machine can help, ball shaping machine is used to make cylindrical and oval shape granules (pellets) into round ball shape granules. It adopts high speed rotation working principle to make round ball pellets.

Main technical