NPK Fertilizer Granulator

We are a professional manufacturer for making NPK fertilizer granulation machines. There are mainly six types of fertilizer granulation machines: new type organic fertilizer granulator, rotary drum churning pelletizer, rotary drum granulator, disc pelletizer, double roller granulator and flat die pellet mill. But the rotary drum granulator, disc pelletizer and double roller granulator are the most appropriate NPK fertilizer granulation machines. They can produce high quality NPK fertilizer for you. Here we are going to introduce them from their models and running ways to help you decide which type is your best choice.


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What Production Scale of Machines Can You Choose for NPK Fertilizer?

As mentioned above, you can choose NPK fertilizer rotary drum granulator, disc pelletizer and double roller granulator to granulate NPK pellets. But which scale is the most suitable level for your NPK fertilizer making machine? We can make a comparison here for you.

Our Machines Make NPK Fertilizer with High Granulation Rate for Commercial

For commercial, a beautiful shape of NPK fertilizer will put you in a favorable position. In this way, a granulating machine with high ball rate of NPK fertilizer will play an important. And you can choose your NPK fertilizer machine according to the data of ball rate below.

Firstly, rotary drum granulating machinery NPK fertilizer granules sizes are 3-6 mm. Because blades are casting orderly to make the raised materials into pellets in the rotary tube, they can make the hard constant particles, and the granulation rate is high up to 70%.

Next, NPK fertilizer double roller granulation equipment. It always works with the polishing machine. The final granule size for double roller granulator is usually 3-10mm. The pellets’ hardness is up to 15-20N. The final products’ yield is up to 95%. You can use this machine to start a small scale fertilizer process line. It has the highest ball rate, which can satisfy your needs mostly.

NPK fertilizer double roller granulator

Lastly, NPK fertilizer pan granulator granulates the fertilizer under the function of the pan’s rotating. The granulation rate is up to 93%. The pellets’ diameter usually is 3-5 mm.

Above all, if you want to choose a high capacity NPK fertilizer granulation equipment, a rotary drum granulation machine will be your best choice; if you want to choose one NPK fertilizer granulation machine which has higher granulation rate, double roller granulator is the most appropriate one for you.

Dry Granulation, or Wet Granulation for Making NPK Fertilizer? Which One Do You Prefer?

Besides the two aspects, the working process of these NPK compound fertilizer granulation equipment is also a very important point for you to choose granulation machinery. In general, you can use wet granulation and dry granulation to process NPK pellets. It depends on which NPK fertilizer granulating machinery you choose.

You can use wet method for making NPK fertilizer.

Rotary drum pellet making machinery production and pan fertilizer pellet making machines both use wet granulation. It requires granules moisture to be 30%-40%. The rotary drum makes granules by turning, while pan granulation uses dis’s rotating. You put adhesive into the materials. Then the granules will coalesce by the function of the adhesive. The pellets formed have the advantage of high quality, beautiful shape, strong wear resistance, high hardness in this way.

Dry method can also produce NPK fertilizer pellets.

The roller compactor adopts dry granulation, which is different from wet granulation. You needn’t put adhesive into the materials, and there is no need to increase the moisture content. It granulates under the normal temperature. The raw materials’ moisture is 5-10%. In this way, there is also no need for drying the formed granules, which cuts a lot of cost in your production.

Two granulation ways not only influence the procedure of making NPK pellets, but also influence your production line. Usually, after wet granulation, you need to dry the pellets to make them up to the package standard. The moisture needs to be controlled around 20%-25%. You can get more information about the whole NPK fertilizer granulation production line later.

How Does Our Granulating Machine Work in the Factory?

According to your choice of fertilizer granulating machine, it will play roles in a complete production line to make the most competitive NPK pellets. And it functions in the whole production line of factory. Therefore, how does a granulator making machine for making NPK fertilizer works in the factory? It usually go through these procedures:

  • Firstly, you should prepare the powdery NPK fertilizer raw materials.

  • Then you can use our horizontal mixer to mix these powdery NPK fertilizer according to the proportion you want to batch materials.

  • Later, you can use the rotary drum granulator, double roller granulation machinery, and disc granulating machines for granulating.

If you use wet granulation in NPK fertilizer production process, you need to use a rotary drum drying machine and cooling machine to remove extra moisture. Instead, if you use dry granulation, you can screen them directly.

After our rotary screening machine screens the unqualified pellets, you can use our automatic palletizer machine to package them for sale.

The Way to Make 17:17:17 NPK Fertilizer with Our Pellets Making Machine

granulator for 17-17-17 NPK fertilizer

Generally speaking, NPK fertilizer proportion is not constant, it will change according to the soil’s pH and element needed for plant growth. But each type of NPK fertilizer is constant. You know the proportion before granulation. So, how do you make a different proportion of NPK fertilizer during the running of granulation machines? Here we are going to take the rotary drum granulating machine as an example.

Suppose you are going to produce 17:17:17 NPK fertilizer by our rotating drum granulator. The material is added and mixed in the static batching machine in advance. Then the belt and pulley transmits the batched NPK materials. The materials are fed from the feed end and pass through the inside of the cylinder. Through the process of high-speed rotating inside the cylinder, they are made into granules. Finally, they flow out through the discharge port. Then you can get a 17:17:17 NPK fertilizer.

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