NPK Fertilizer Production Line


NPK Fertilizer Production Line Introduction

Manufacturing Plant, Farms, Energy & Mining, Other

Raw Material:

Nitrogen, Phosphorus and Potassium


NPK Fertilizer Granules Making

NPK fertilizer production line is a series of equipment processing process that produces fertilizer containing npk elements. With urea, phosphorus ore, sulfuric acid and potassium chloride as raw materials, npk fertilizer is made by grinding, stirring, granulating, drying and cooling, packaging and other processes with a specific proportion.

NPK Fertilizer Production Line Mchine

A NPK (Nitrogen, Phosphorus, and Potassium) fertilizer production line is a set of machines and equipment designed to produce NPK fertilizers. NPK fertilizers are formulated with different ratios of nitrogen, phosphorus, and potassium to meet the specific nutrient requirements of plants.


The production line typically includes the following machines:

  • Raw Material Mixing Machine: This machine is used to blend the raw materials, the blending process ensures a homogeneous mixture of the ingredients.
  • Crusher: The raw materials may need to be crushed into smaller particles to facilitate the mixing process.
  • Mixer: The mixer is responsible for thoroughly mixing the raw materials, ensuring that the nitrogen, phosphorus, and potassium components are evenly distributed.
  • Granulator: The mixed material is passed through a granulator, where it is shaped into granules.
  • Dryer/Cooler: The granulated fertilizer may require drying to remove excess moisture.
  • Screening Machine: The granules are screened to remove any oversized or undersized particles, ensuring consistent size and quality of the final product.
  • Packaging Machine: The final step is the packaging of the NPK fertilizer into bags or other containers for distribution and sale.

Raw Materials for NPK Fertilizer Production Line

NPK fertilizer production requires a combination of three key raw materials: nitrogen (N), phosphorus (P), and potassium (K). These elements can be sourced from various materials, such as animal manures, plant residues, and mineral deposits.


  1. Nitrogen Sources:

    • Urea: A widely used nitrogen fertilizer derived from synthetic ammonia and carbon dioxide.
    • Ammonium Nitrate: Provides both nitrogen and readily available ammonium ions.
    • Poultry Manure: Contains significant amounts of nitrogen and organic matter.
    • Blood Meal: A byproduct of animal slaughter, rich in organic nitrogen.
    • Fish Meal: Derived from fish processing waste, a good source of organic nitrogen.
    • Feather Meal: Made from poultry feathers, high in slow-release nitrogen.
  2. Phosphorus Sources:

    • Phosphate Rock: Mined mineral deposits containing phosphorus in the form of phosphate.
    • Bone Meal: Produced from animal bones, an organic phosphorus source.
    • Guano: Accumulated bird droppings, rich in phosphorus and other nutrients.
    • Superphosphate: Processed phosphate rock treated with sulfuric acid to increase its solubility.
  3. Potassium Sources:

    • Potassium Chloride: The most commonly used potassium fertilizer, containing high levels of potassium.
    • Potassium Sulfate: Provides potassium along with sulfur, suitable for chloride-sensitive crops.
    • Wood Ash: Residue from burning wood, a natural source of potassium and other trace elements.

In NPK fertilizer production, these raw materials are carefully selected, processed, and blended to achieve desired nutrient ratios. The precise combination of nitrogen, phosphorus, and potassium ensures optimal plant growth, improved crop yields, and balanced soil fertility.

NPK Fertilizer Manufacturing Process

The production process of NPK fertilizer typically involves several stages, including raw material preparation, mixing and granulation, drying, cooling, and packaging. Here is an overview of the typical process:

  1. Raw material preparation: The first step is to prepare the raw materials, which typically include nitrogen sources (such as urea or ammonium nitrate), phosphorus sources (such as superphosphate or triple superphosphate), and potassium sources (such as potassium chloride). These materials are usually stored separately in silos or other storage facilities.
  2. Mixing and granulation: The raw materials are then mixed together in the correct proportions using a mixer. The resulting mixture is then granulated using a granulator, which converts the mixture into small, uniform granules that are easier to handle and apply.
  3. Drying: The granules are then dried using a rotary dryer, which removes any excess moisture and makes the granules more durable. The drying process typically involves heating the granules to a high temperature using hot air.
  4. Cooling: After drying, the granules are cooled using a cooler, which reduces their temperature and makes them easier to handle. The cooling process typically involves blowing cool air over the granules.
  5. Packaging: Finally, the cooled granules are packaged into bags or other containers for storage and transport. The bags are usually labeled with information about the fertilizer blend and application rates.

NPK Fertilizer Process Flow Diagram


NPK Fertilizer Production line Cost

The cost of an NPK fertilizer production line depends on various factors such as the scale of the plant, the choice of equipment, and the level of automation. Generally, a small-scale production line may cost around $10,000 to $50,000, while a larger scale production line can cost upwards of $100,000 to $500,000 or more. Additionally, other factors such as labor costs, raw material availability, and government regulations can impact the overall cost. It is important to carefully assess the needs and goals of your operation before investing in an NPK fertilizer production line.

Other Fertilizer Making Equipment


Organic Fertilizer Production Line

Organic fertilizer production line converts natural organic materials into high-quality fertilizers through composting, granulating, and packaging.


Fertilizer Crusher

An organic fertilizer crusher is a machine that crushes organic raw materials into small pieces to facilitate further processing in the production line.


Fertilizer Mixer

An organic fertilizer mixer is a machine that blends organic materials and other components together in a uniform manner, creating a high-quality fertilizer mixture for use in farming or gardening.


Fertilizer Granulator

An organic fertilizer granulator is a machine that transforms organic raw materials into uniform, spherical granules, which are easier to handle, transport and store.


Fertilizer Drying Cooling Machine

An organic fertilizer drying cooling machine is used to remove excess moisture from organic fertilizer granules and cool them to a suitable temperature for storage and transportation.


Automatic Fertilizer Packing Machine

An automatic fertilizer packing machine is used to automatically weigh, fill, and pack organic fertilizer into bags, improving efficiency and reducing labor costs in the production process.

Why Choose Tongda Manufacturer


Our company has a standardized heavy factory building of 60,000 square meters. More than 100 sets of various gold processing equipment. The company has passed the ISO9001-2015 quality system certification, and was rated as an AAAA-level standard good behavior enterprise.

Product Transportation and Delivery

TongDa upholds craftsmanship, from equipment prep to delivery, using standardized processes to ensure safe, damage-free delivery. We guide project construction, installation, and commissioning. Upon project completion, client project acceptance guarantees satisfaction.

Perfect after-sale protection

Our team technical engineers solves project problems from consultation to maintenance. We offer comprehensive training for customers’ technical staff, followed by ongoing technical support and project follow-up to ensure stable operation.

Contact Us