Roller Press NPK Fertilizer Production Line with 40 Mesh Feed and Oval Shape Granules for 380V Voltage

The compound NPK fertilizer production line process consists of several key stages: raw ingredient preparation, material mixing, granulation, particle drying, cooling, classification, and final product packaging with protective film.

This NPK fertilizer production line is widely used for compound fertilizer manufacturing with production capacities ranging from 5,000 to 200,000 tons per year. The system can granulate various fertilizer materials including NPK, NP, ANP, DAP, MAP, CAN, SSP, and other raw materials in a single production line.

Compound fertilizer contains two or all three essential plant nutrients—Nitrogen, Phosphorus, and Potassium—along with microelements such as Boron, Manganese, Copper, Zinc, and Molybdenum. Raw materials can be in powder or bulk form, primarily including:

• Low investment requirements with quick returns and excellent economic benefits
• Compact equipment layout with scientific and advanced process design
• Energy efficient operation with no waste discharge
• Stable and reliable performance with easy maintenance
• Wide raw material adaptability suitable for fertilizers, pharmaceuticals, chemicals, and feed granulation
• High granulation rate capable of producing various concentrations and types of fertilizers
• Advanced technology for ammonium fertilizer and potash feldspar carbide particle production

1. Ingredients: Proportioning raw materials including urea, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium phosphate, potassium chloride, potassium sulfate based on market demand and soil test results
2. Raw Material Mixing: Thoroughly mixing ingredients to ensure uniform fertilizer particle composition
3. Material Granulation: Feeding mixed materials into granulators (drum granulator or extrusion granulator available)
4. Granule Drying: Processing granules through dryer to reduce moisture content and increase particle strength for better storage
5. Granule Cooling: Cooling dried granules to prevent agglomeration and facilitate storage and bagging
6. Particle Classification: Screening cooled particles to separate qualified products and recycle unqualified material for regranulation
7. Finished Product Coating: Applying coating to qualified products to enhance brightness and roundness
8. Finished Packaging: Packaging coated particles in ventilated storage conditions

• A. Low investment with quick returns and excellent economic benefits
• B. Energy efficient operation with no "three wastes" emission
• C. Stable, reliable operation with easy maintenance and wide raw material adaptability
• D. Advanced granulating, pressing, and screening machinery producing high-quality finished appearance with easy operation
• E. Roller body components manufactured from refined metal with corrosion resistance, wear resistance, and seismic performance
• F. Bearing bracket constructed from high-quality anti-corrosion casting, significantly extending service life of rolling bearings and spindles
• G. Dual input transmission system improving input power ratio while ensuring optimal lubrication and sealing performance of drive gears