factory supplier npk fertilizer production line for sale


NPK fertilizer production line or NPK fertilizer plant is mainly used for producing npk fertilizer. raw material of NPK fertilizer manufacturing plant are Urea, DAP, MOP, KCL,TSP, SSP, ammonium sulphate, phosphate, gypsum, lime, or other materials.
final product of npk granular fertilizer production line: NPK compound fertilizer.
capacity for npk fertilizer manufacturing process: 1-50 ton/hour,
application: npk fertilizer equipment,npk fertilizer granulator machine
advantages: large capacity, high automation, high granulating ratio, low energy consumption, friendly environmental protection

Introduction & Composition of NPK Fertilizer Production Line

NPK fertilizer production line or NPK  fertilizer  production plant is mainly used for producing npk fertilizer. The npk granular fertilizer production line adopts rotary drum granulator for npk fertilizer granulator machine which has large capacity for fertilizer granulation, and can be used for producing high, medium and low concentrated npk compound fertilizer.

The npk compound fertilizer production line include automatic batching machine, mixer machine, rotary drum granulator or pan/disc granulator, belt conveyor, rotary dryer, rotary cooler, rotary screen, rotary drum coating machine, automatic packing machine and chain crusher. We provide complete sets of equipment for npk compound fertilizer production and solutions for our esteemed customers!

NPK Fertilizer Production Line
NPK Fertilizer Production Line

Application of npk fertilizer manufacturing plant

1. Rotary drum granulator line has wide adaptability to raw materials which can be urea, ammonium nitrate, ammonium chloride, ammonium sulfate, monoammonium phosphate(MAP), diammonium phosphate(DAP), single superphosphate(SSP), potassium chloride, potassium sulfate, gypsum, lime, etc. You can choose according to market demand and soil test results.
2. Rotary drum granulator production line can produce npk compound fertilizer, organic fertilizer and organic compound fertilizer with the content of N, P, K ranging from 20-48%. It is mainly used for producing spherical particles with a diameter ranging from 1mm to 5mm.

Advantages of NPK Fertilizer Production Plant

  1. Equipped with advanced fertilizer manufacturing technology, this npk compound fertilizer production line can completenpk fertilizer granulation all in one process.
  2. Adopts advanced rotary drum granulator, granulating ratio is up to 90%, high intensity of granules,
  3. The inner cylinder body adopts high quality rubber plate lining structure which prevents the raw material from sticking on the plate.
  4. Wide adaptability of raw materials, suitable for npk compound fertilizer, pharmaceuticals, chemicals, fodder and so on.
  5. High-quality, stable performance, anti-corrosion and wear-resistant materials components, abrasion proof, low energy consumption, long service lifespan, easy maintenance and operation, etc.
  6. High efficiency and economic returns, and the small part of feeding back material can be granulated again.
  7. Adjustable capacity according to customers’ requirements.
  8. 8. Highly automatic and high precision. The batching machine system and packing machine are controlled by PLC computer to realize automation.
    We have taken full consideration of user experience when designing and manufacturing fertilizer machines.
NPK Fertilizer Production plant
NPK Fertilizer Production plant

npk fertilizer manufacturing process

The process technology of N-P-K fertilizer is advanced and reliable. According to the compatibility and crossability of the three raw materials, N-P-K compound fertilizer in different percentage composition can be manufactured applicable for different requirements of soils and crops.

  1. Mixing Process for npk fertilizer production line: the raw materials are put into mixer in strict accordance with the technical requirements of each raw material quantity. Then the conveying belt sends the materials to crushing machine.
  2. Crushing Process for npk granular fertilizer production line: the crusher machine smashes lump materials into small ones that the fineness meets the required for granulation. Then the conveyor belt sends the materials to rotary drum granulator machine.
  3. Granulating Process for npk fertilizer production line: there is a water pump to offer gas or steam and makes fertilizer particles forming easily. The solid fertilizer powder after granulation will rise by the rotation of the cylinder and scroll down under the effect of gravity. At the same time, according to the raw material quantity, add a certain proportion adhesives for granulation. After several times repetition of the same rotation, fertilizer materials gradually form. Next the conveying belt sends the materials to rotary drum drying machine and cooling machine.
  4. Drying & Cooling Process npk fertilizer production line:There are also draught fans to supply hot air and cold air to rotary dryer machine and rotary coolermachine respectively. After drying and cooling is screening process. the coating machine can beautify the materials and keep the effect of the finished product .
  5. Screening Process for npk fertilizer production line: the qualified materials can be sent to packaging machine by bucket elevator, while others are conveyed back to crusher or granulator to be re-processed.
  6. Fertilizer Coating Machine for npk fertilizer production line: The conveyor belt sends the qualified granules from the second screen into the rotary coating machinefrom the higher end. With the rotation of the cylinder, powder or liquid are evenly coated on the surface of granules, which prevent caking, meanwhile increase the brightness and roundness of the granular. The machine is lined with polypropylene plate or stainless steel plate.
NPK Fertilizer Production plant
NPK Fertilizer Production plant

How to Produce the High Nitrogen NPK Compound Fertilizer? 

To produce high nitrogen compound fertilizer, one important equipment is needed in the granulating process: the spraying system. The melting tank melt the urea and then spray the melted liquid into the granulating machine so that it will mix with powder phosphate fertilizer, potash fertilizer and other nitrogen fertilizer. Then with the help of the granulator, the liquid and other raw materials will be mixed and granulated. This production technology is used to produce compound fertilizer or complex fertilizer with high nitrogen content from 25%-45%.

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