Double Roller Extrusion Granulation Line for NPK Compound Fertilizer - No Drying Required, High Granulation Rate 85-95%, 12-15t/h Capacity

Our Mini Double Roller Granulation Line offers an ideal solution for starting your NPK compound fertilizer business with minimal capital investment. This compact, easy-to-operate system produces high-quality NPK granules without requiring drying processes, making it perfect for small-scale producers, farms, and cooperatives seeking quick market entry with future expansion capabilities.

The production process begins with mixed powder being fed into the double roller granulator. Two counter-rotating rollers compress the material under high pressure (15-25 tons) into dense strips, which are then crushed and screened. Qualified granules (2-6 mm) are separated while fines return to the mixer for re-granulation.

• Dry process - no water or binder required
• No drying or cooling needed
• Granulation rate: 85-95%

• Nitrogen: Ammonium sulfate, ammonium chloride
• Phosphorus: MAP, DAP, SSP, TSP
• Potassium: MOP, SOP
• Additives: Trace elements (B, Mn, Zn, etc.), anti-caking agents

• No drying required - Saves energy, eliminates fuel costs, and removes need for dryer or cooler equipment
• High granulation rate - 85-95% of material forms qualified granules
• Wide raw material adaptability - Works with urea, MAP, DAP, MOP, SSP, ammonium sulfate, and more
• Flexible formula - Easy adjustment of NPK ratios for high, medium, or low concentration formulations
• Low operating cost - Simple process requires less labor and minimal maintenance
• Environmentally friendly - No waste water or exhaust gas emissions

• Simple machine structure for reliable operation
• Easy operation and maintenance procedures
• One-time forming with no drying process - normal temperature granulation
• Double-shaft power output - each shaft drives its roller via coupling for synchronous counter-rotating operation, resulting in superior granule formation and higher strength
• Simple ball socket alignment adjustment design for convenient customer self-adjustment, with provided roller adjustment drawings and operation steps
• All machines undergo testing and trial production by professional workers before factory shipment