Adjustable NPK Ratios NPK Fertilizer Production Line with High Granulation Rate and Modular Configuration Compound Fertilizer Production Line

This complete NPK compound fertilizer production line is specially developed for producing granular compound fertilizer with adjustable nitrogen-phosphorus-potassium ratios. It covers the full-process workflow from automatic batching to finished-product packaging.

Finished NPK fertilizer granules feature uniform particle size, high mechanical strength, and good anti-caking performance, making them convenient for storage, transportation, and farm application. This turn-key solution is widely adopted by medium to large fertilizer factories for producing different-formula compound fertilizers.

• Flexible formula adjustment supporting various NPK proportion formulas for different crop demands
• Two optional granulation technologies: wet drum granulation or dry double-roller extrusion granulation
• High granulation rate, stable continuous running, low failure rate, and easy maintenance
• Modular configuration with customizable whole-line layout according to customer workshop and site conditions
• High automation level reducing manual operation, with a return material recycling system improving raw-material utilization
• Finished round granules with high strength, resistant to breakage and anti-caking for long-term storage

1. Raw material automatic batching
2. Crushing
3. Mixing homogenization
4. Granulation
5. Drying
6. Cooling
7. Rotary screening
8. Finished-product packaging

Unqualified oversized and fine powder materials are returned for re-granulation to realize material recycling.

• Automatic Batching System: Accurately weighs nitrogen, phosphorus, potassium and filler raw materials
• Material Crusher: Crushes agglomerated chemical raw materials into fine powder
• Mixer: Fully blends multiple powder raw materials for even nutrient distribution
• Granulator: Converts mixed powder into fertilizer granules (rotary drum or double-roller extrusion optional)
• Rotary Dryer & Cooler: Reduces granule moisture and cools down hot fertilizer particles to prevent caking
• Rotary Trommel Screen: Separates qualified granules from oversized and undersized return materials
• Automatic Quantitative Packaging Machine: Weighs and seals finished NPK fertilizer bags