In organic fertilizer production, disc granulators stand out as key equipment for lowering costs and boosting profits, thanks to their unique process advantages. Compared to other granulation methods, they excel in investment cost, energy use, and material flexibility.
1.Lower Equipment Investment Cost
Disc granulators have a simple structure – mainly an inclined rotating disc, drive system, and frame. They don’t need complex pressing or drying systems. The purchase cost is 40%-50% lower than extrusion granulators, making them ideal for small to medium-sized organic fertilizer plants.
2.Lower Energy Use, Saves Operating Costs
They only need a standard motor to run, using just 3-5 kWh per ton of material – over 60% less than extrusion granulation.
No extra heating or drying is needed (relying on natural ball formation), cutting out fuel or hot air system costs.
3.Wide Material Flexibility, Less Pre-Treatment Cost
Can directly handle fermented materials with 20%-35% moisture, eliminating the drying process.
Less strict on raw material particle size – standard crushing is enough, reducing crusher energy use.
4.High Pelletizing Rate, Less Recycle Loss
The unique rolling action achieves 85%-95% pelletizing success. Unformed powder automatically recycles for re-granulation.
Significantly reduces material waste compared to flat die granulators (which have 15%-20% recycle rates).
5.Easy Maintenance, Lower Labor Costs
No precision molds or high-pressure parts. The only wear part is the scraper blade, with yearly maintenance under 2000 yuan.
Simple operation – one person can manage 2-3 machines at once, cutting labor input by 50%.
In short, for organic fertilizer made from manure, straw, etc., disc granulators are the top choice for lowering overall production costs. Their strengths lie in low investment, low energy use, and high pelletizing rates.