An NPK fertilizer granulation line starts with accurate batching and mixing, followed by either wet granulation (which requires drying and cooling) or dry granulation (which compresses powders directly without water). Your choice between these two processes depends on your NPK granulation scale and raw material formula. For wet granulation, the NPK granulation line includes batching, misturando, drum or pan granulation, triagem, secagem, resfriamento, revestimento, e embalagem. For dry granulation, you can skip the drying and cooling stages, using only batching, misturando, extrusion granulation, triagem, e embalagem. The total cost varies mainly with your chosen process and output. If needed, you’re welcomed to contact YUSHUNXIN for a customized NPK fertilizer manufacturing line.
Principle of the NPK granulation
NPK fertilizer production starts with accurate formulation control. The dynamic batching machine meters each raw material to match the target N-P-K ratio, and the double shaft horizontal mixer blends the powders until the composition stays uniform. After mixing, the process follows one of two granulation principles.
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Choosing the suitable NPK granulation equipment for your production scale and raw material formula
Are you troubled with how to choose the suitable granulator? You can choose that based on your production scale and raw material formula.
If you need high-volume production (over 100,000 tons/year), choose a granulador de tambor rotativo. It uses steam to effectively granulate high-concentration NPK formulas containing urea and MAP delivering high output and round, strong granules. If you operate a medium-scale NPK plant (10,000–50,000 tons/year) with a limited budget, choose a pan granulator. It offers low investment, easy operation, and produces uniform, attractive granules for most standard NPK formulas.
If you process NPK formulas with heat-sensitive components or prefer to avoid a drying system, choose a double-roller extrusion granulator. It works without water or steam, consumes less energy, and produces dense granules ideal for controlled-release or water-soluble NPK fertilizers.
Equipment included in a complete NPK fertilizer granulation plant
If you are planning an NPK fertilizer project, you will typically choose between a wet granulation line and a dry granulation line, depending on your formula, target granule quality, and operating cost.
A wet granulation line
Equipment involved in a granulação úmida line: Dynamic Batching Machine →Double Shafts Horizontal Mixer → Drum Granulator / Disc (Pan) Granulator → Rotary Drum Screening Machine → Rotary Dryer → Rotary Cooler → Coating Machine → Packing Machine. This solution is designed for making wet NPK granules with good strength and appearance. The batching system accurately doses each raw material to protect the N-P-K ratio, and the double shafts horizontal mixer ensures uniform blending. The drum or pan granulator forms granules, while the screening machine separates qualified size and returns oversize/undersize for recycling. The dryer reduces moisture and hardens granules, the cooler lowers temperature to prevent caking, and the coating machine applies anti-caking protection. Finalmente, the packing machine automatically weighs and bags the finished NPK.
A dry granulation line
Equipment involved in a dry granulation line: Dynamic Batching Machine → Double Shafts Horizontal Mixer → Double Roller Extrusion Granulator → Screening Machine → Packing Machine. Dry granulation compacts powders into NPK fertilizer granules without adding water, so the process is shorter and typically uses less energy. Screening controls size and recycles rejects before final weighing and bagging.
Cost of a fertilizer production line such as a NPK granulation line: Depends mainly on your process type and output
Based on the capacities above, an NPK production line investment depends mainly on process type and output. For a wet-process NPK granulation line, you should plan about USD 190,000 for 5 t/h, around USD 360,000 for 10 t/h, and about USD 550,000 for 20 t/h. For a dry-process line, the budget stays lower: roughly USD 110,000–150,000 at 5 t/h, USD 220,000–280,000 at 10 t/h, and USD 350,000–450,000 at 20 t/h.
Where to buy NPK fertilizer machines?
Not sure where to buy NPK fertilizer machines? Start with three checks: Does the supplier have real project experience? Can they deliver a complete NPK fertilizer production line instead of only single machines? Do they run their own factory and support customers overseas? At YUSHUNXIN, we bring 10 years of hands-on experience in NPK fertilizer production lines. We help you choose the right process based on your raw materials, capacidade alvo, nível de umidade, and granulation goals, so you avoid trial-and-error purchasing. At YUSHUNXIN, we bring 10 years of hands-on experience in NPK fertilizer production lines. We help you choose the right process based on your raw materials, capacidade alvo, nível de umidade, and granulation goals, so you avoid trial-and-error purchasing. We also offer true one-stop service: process planning and layout, equipment manufacturing, delivery coordination, on-site installation and commissioning, and operator training. You get one integrated solution that runs smoothly as a line, not a pile of separate machines. Since we operate our own factory, we control quality, lead time, and customization. And with four overseas distribution offices, we respond faster and support your project with more reliable local service.
If you need a customized NPK fertilizer manufacturing line, please feel free to contact us at YUSHUNXIN.
