In Thailand, NPK compound fertilizer plays an important role in agricultural development. So many businesses invest in chemical fertilizer manufacturing, especially NPK compound fertilizer production. But how to prepare NPK compound fertilizer using compaction? You can setup a NPK compound double roller granulation line. For this, you need professional fertilizer machines and design. SX can help you a lot and there are many successful cases. For example, on 9th March 2023, a customer from Thailand inquired about NPK compound fertilizer making machines. The following are the specific details of communication in this case.


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Which granulation machine is suitable for NPK compound fertilizer making?

The client from Thailand wanted to use Urea, AS, DAP, MAP and MOP to prepare NPK fertilizer pellets. So first of all, it is essential to buy a type of suitable chemical pellet making equipment.

For this, SX can offer you double roller granulator, pan pelletizer and rotary drum granulation machine. Customer from Thailand asked us “Is there a more commercial NPK compound fertilizer pellet making machine?” Of course. We finally recommended him double roller granulator. Because its quote is usually $3,000-$12,000. It is higher than disc pelletizer,right?

double roller granualtor for NPK fertilizer
Double Roller Granulator

However, if you want to set up a NPK compound fertilizer making line at a low cost, double roller fertilizer granulator will be your best choice. It only needs $25,000-$150,000. Because it adopts dry extrusion granulation method, which mainly makes use of extrusion force between two rollers to turn NPK into fertilizer pellets. This means that thereis nearly no water involved in the whole NPK compound fertilizer making process. So you can reduce the cost of fertilizer dryer and cooler purchasing.

How to adjust the compaction pellet size during NPK compound fertilizer granulation?

Then customer from Thailand wanted to make 6-12mm granules in double roller granulator. But in the process of double roller extrusion granulation, the NPK compound granule size is only related to the size of ball sockets on rollers. The smaller the ball socket size, the smaller pellet size; the larger the ball socket size, the larger the pellet size. And the double roller granulator can produce 3-10mm pellets. If you want to produce more size granules, you can use the above ways to make them.

skin for double roller granulator

How to further process NPK compound fertilizer after double roller granulation?

Finally customer from Thailand wanted to improve quality of pellets after compaction granulating. So we recommended him screener, polishing machine, coating equipment and automatic packaging machine. If you want to produce high quality NPK compound fertilizer pellets, these fertilizer machines you can use to further process NPK compound fertilizer after compaction granulating. For example:

When you plan to further improve the quality of your NPK compound granule fertilizer, the first equipment we recommend you is screener. It can sort the NPK pellets into small fertilizer particles, required size NPK granules and large NPK pellets. Then you can send qualified fertilizer particles to the next step while transport unqualified pellets to re-process. This is greatly beneficial for improving the purity of the final NPK compound fertilizer pellets you prepare.

Then it is also necessary to purchase a polishing equipment if you want to improve the quality of pellets. This equipment can grind the particles so that they have a smooth surface and a beautiful appearance. Therefore, using polishing equipment in NPK compound fertilizer production can help you improve the whole quality of pellets so that make more profits.

After NPK compound fertilizer polishing, it is advisable to use a coating machine. Why? In order to better lock the nutrients in the NPK granules, wrapping a film on the outer layer of the NPK granules can effectively prevent the loss of nutrients. In addition, if you want to make the particles have fragrance and color, you can also add corresponding bacterial agents in this link. More importantly, the coating can prevent damp problems caused by long-term storage. Damp will affect the quality of the pellets, so coating is necessary.

Finally, we can provide you with automatic fertilizer packager. It can pack final NPK fertilizer pellets into 10 kg/bag, 25 kg/bag, 50 kg/bag, etc. Then you can deliver fertilizer to your correspondent scale customers in an easier way.

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