In our drum granulator, material rolls and rubbs in a tilted drum to form a steady curtain And there fine particles bond, grow by repeated layering, and then sort by size for automatic discharge.Besides,our rotary granulators use a wet method and has different models with different parameters.We, YUSHUNXIN also provide a complete drum fertilizer granulator production line. A 10 t/h line costs USD 360,000, and a 20 t/h line costs USD 550,000. You can buy disc or drum granulators from us. And we run a 60,000 m² factory and support custom service.
How does a rotary granulator work?
In our fertilizer disc granulator, material rolls and rubs inside a tilted, rotating drum. And then it forms a continuous “material curtain” flow. The curtain stays active, so mixing is fast and heat transfer is steady. We use the material’s own crystal water or its preheated physical properties, and we apply steam heating inside the drum or add a solid binder（such as Bentonite). Then fine particles start bonding, and a firm agglomeration reaction occurs.
Fertilizers granules grow by repeated layering, and they densify under constant compression. As a result, particle size increases step by step, and shape becomes more uniform. Finally, size differences do the sorting. Small fertilizer granules fall back and keep growing, but larger fertilizer granules discharge from the tail end and overflow in an automatic grading process.
Parameters of a rotary drum pelletizer
| Model | Power (kw) | Diameter (mm) | Length (mm) | Installatiomn Angle | Rotary Speed (r/min) | Capacity(t/h) |
|---|---|---|---|---|---|---|
| SXZGZ-1240 | 5.5 | 1200 | 4000 | 2-5° | 17 | 1-3 |
| SXZGZ-1560 | 11 | 1500 | 6000 | 2-5° | 17.5 | 3-5 |
| SXZGZ-1870 | 15 | 1800 | 7000 | 2-5° | 11.5 | 5-8 |
| SXZGZ-2080 | 18.5 | 2000 | 8000 | 2-5° | 11 | 8-15 |
| SXZGZ-3210 | 37 | 3200 | 10000 | 2-5° | 9.5 | 15-30 |
What is the granulation technology of a rotary granulator machine?
Rotary drum fertilizer granulation uses a wet granulation method, so it is well suited for NPK and compound fertilizer lines. Raw powders enter the rotating drum, which then lifts and rolls the material continuously. At the same time, nozzles spray water, steam, or liquid binder to make the particles moist and sticky. As a result, fines attach to the seed cores and grow layer by layer, which makes the granules rounder and denser.
Since you can control drum speed, feed rate, and binder volume, you are able to manage granule size and strength effectively. You also need to control moisture and temperature, because too much moisture leads to agglomeration, while too little causes dust. After granulation, the line connects to a dryer and a screen. Then oversize material goes back for crushing, and undersize material returns to granulation, so the whole system runs continuously and steadily.
How many individual units does a rotary drum fertilizer line consist of?
A rotary drum fertilizer production line typically has 8–12 individual units. The exact number depends on the raw materials, moisture level, and target capacity. Are you planning to build a fertilizer granulation production line such as a rotary drum fertilizer granulation line? We can supply a complete rotary drum fertilizer granulation line, and it includes automatic batching system, mixing machine, drum granulate machine, a rotary cooler, a rotary dryer, a coating machine, and a single-bucket packing machine. The process flows smoothly, and the equipment package is complete. So you get one continuous line from raw material pretreatment to final packing.
How much is the rotary pelletizer fertilizer line？
The price of a fertilizer granulation line such as a rotary drum granulation line, depends on capacity, so different outputs mean different budgets. If you need 10 t/h, the line price is USD 360,000. If you need 20 t/h, the line price is USD 550,000. Higher capacity needs a bigger drum granulator, and it needs stronger motors, gearboxes, and frames. It also needs higher drying and cooling power, larger screens, conveyors, and dust control units. So the total cost increases with output. You can choose carbon steel or stainless steel, and you can also add anti-corrosion lining for long service life. What’s more,you can match a coating machine and an automatic packing system, and upgrade to PLC control for stable operation. Tell us your material type, moisture, and formula, and your target fertilizer granule size. Then we can design the right layout and offer a clear quotation.
Where can I buy a rotary drum granulator ?
If you need a rotary drum granulator,you can buy it from YUSHUNXUN.You can buy a rotary drum granulator machine from YUSHUNXIN, and you can get stable granulation for fertilizer. YUSHUNXIN runs a 60,000 m² factory, so we control machining, welding, and assembly, and we keep lead time clear. We support custom service, and we match the machine to your formula, capacity, and granule size. You can add a water spraying device, and you can adjust spray flow, angle, and nozzle type for better pellet forming. We also provide a full fertilizer granulation line, so you can connect crusher, mixer, dryer, cooler, and screening machine.
