NPK Production Line | High Efficiency Fertilizer Plant

Custom NPK compound fertilizer production line with stable granulation, low energy cost & easy operation. Supply complete NPK fertilizer making lines with advanced technology. High yield, eco-friendly design and customized solutions for small to large scale plants.

Customer Raw Materials: Main raw materials include three types of fertilizer powders (nitrogen, phosphorus, potassium) and organic matter powder.

NPK Content Ratio of Finished Products: 18%, 18%, 18%

Customer Requirements: Production capacity of 3~5 t/h

Moisture Content of Customer Raw Materials: 15%

Particle Size of Customer Finished Products: φ4 (mm)

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NPK Production Line Introduction

Roller Granulator NPK Fertilizer Production Line

The NPK Production Line is a complete, automated equipment system designed to produce high-quality compound fertilizers containing Nitrogen (N), Phosphorus (P), and Potassium (K) — the three essential macronutrients for plant growth. This production line can process more than 3 types of fertilizer raw materials into granules, equipped with a Batching System, using Roller Press Granulator as the main granulation machine, and a dryer can be equipped or not as needed.
Our high-efficiency NPK fertilizer production line is suitable for both small-scale and large-scale fertilizer plants, enabling producers to meet diverse market demands, control production costs, and achieve stable, high-yield output while adhering to environmental standards. It serves as a key link connecting fertilizer raw materials to agricultural production, promoting scientific fertilization and efficient, eco-friendly agriculture development.

Production Process Flow

The NPK production line follows a streamlined, automated workflow with clear, interconnected stages, ensuring high efficiency, stable performance, and consistent product quality. The detailed process is as follows:

1.Raw Material Preparation: Raw materials (including urea, ammonium sulfate, ammonium phosphate, SSP, TSP, MOP, SOP, and selected additives) are stored separately in silos, then crushed into fine powder (0.1-5mm) to ensure uniform mixing and granulation efficiency. Impurities and metal particles are removed during this stage to protect subsequent equipment and ensure product purity.
2.Precise Batching: An intelligent batching system with electronic scales accurately weighs each raw material according to pre-set formulas (e.g., 15-15-15 balanced fertilizer or crop-specific ratios), ensuring nutrient balance and compliance with national standards. The number of material hoppers can be customized (1-4 or more) based on production needs.
3.Mixing & Granulation: The proportioned raw materials are fully mixed in a high-efficiency mixer to ensure uniform nutrient distribution. The mixture is then sent to a granulation system — Roller press granulator.
4.Drying & Cooling: Freshly granulated wet granules enter a rotary dryer, where hot air reduces moisture content to a stable level (suitable for storage). The dried granules are then cooled to room temperature in a cooler to enhance mechanical strength and prevent clumping during storage and transportation.
5.Screening & Recycling: A vibrating screener separates qualified granules (1-4mm) from unqualified fine powder and oversize granules. Unqualified materials are crushed and returned to the granulation stage for reuse, minimizing material waste and improving production efficiency.
6.Coating (Optional): Qualified granules can be coated with a protective layer to slow nutrient release, improve water resistance, and extend shelf life, meeting higher market demands for slow-release fertilizers.
7.Automatic Packaging: The final qualified granules are sent to an automatic packaging system, weighed, and packed into standard bags (25kg, 50kg, or customized sizes) for easy storage, transportation, and on-site application.

Product Features & Advantages

Our NPK Production Line stands out in the market with its high efficiency, stability, and cost-effectiveness, featuring the following core advantages:

High Efficiency & High Yield: Adopting advanced automated control systems and optimized process design, the production line achieves continuous operation with a high granulation rate (≥95%), low material waste, and production capacity ranging from 1-200 t/h, significantly improving production efficiency compared to traditional equipment.
Flexible Customization: The line can be customized according to customer needs, including production capacity, granule size, nutrient ratio (e.g., high-nitrogen, high-potassium formulas), and equipment configuration (disc/rotary/extrusion granulation). It can produce both balanced NPK fertilizers and crop/soil-specific customized products.
Energy-Saving & Environmental Protection: Equipped with energy-efficient motors and dust removal systems (cyclone + filter), the line reduces energy consumption by 15-20% compared to conventional production lines, minimizes dust and waste emissions, and meets global environmental protection standards. The closed-loop recycling system further reduces resource waste.
Stable Performance & Easy Maintenance: All equipment is made of high-quality carbon steel (Q235) or alloy, with wear-resistant parts (e.g., wear-resistant liners, hardox 400 steel hammers) that extend service life. The structure is compact, operation is simple, and maintenance is convenient, reducing downtime and maintenance costs.
Precise Nutrient Control: The intelligent batching system ensures accurate nutrient ratio control, with nutrient content tolerances within national standards, ensuring each granule has uniform nutrient distribution, improving fertilizer utilization and crop yield.
Wide Raw Material Adaptability: The line can process various raw materials, including urea, ammonium chloride, superphosphate, potassium chloride, and trace element additives, adapting to different regional raw material supply conditions.

Product Parameters

Parameter Name	Specification
Production Capacity	1-200 t/h (customizable)
Granule Size	2-6 mm (adjustable)
Granulation Rate	≥95%
Raw Material	Urea, ammonium sulfate, ammonium phosphate, SSP, TSP, MOP, SOP, additives, etc.
Nutrient Content	20-48% (customizable, e.g., 15-15-15, 17-17-17)
Power Requirement	30-500 kW (depends on production capacity)
Voltage	220V/380V/415V/440V/480V (50Hz/60Hz, customizable)
Equipment Material	Carbon steel Q235 / Alloy / Stainless steel 304 (customizable)
Floor Area	50-1000 ㎡ (depends on production capacity)
Water Content of Finished Product	≤10%
Warranty Period	1 year (wear parts excluded)

Application Fields

The NPK Production Line is widely used in agricultural and industrial fields, mainly applicable to:

Large-Scale Fertilizer Factories: Suitable for large-scale production of compound fertilizers, meeting bulk supply needs for agricultural markets, with stable output and consistent quality.
Regional Fertilizer Suppliers: Ideal for producing customized fertilizers according to local soil conditions and crop types, catering to regional agricultural needs.
Export-Oriented Producers: Capable of producing fertilizers that meet international standards (e.g., EU, US agricultural standards), supporting export to global markets such as Southeast Asia, Africa, Europe, and South America.
Specific Crop Cultivation Bases: Used to produce crop-specific fertilizers for grains (wheat, corn, rice), cash crops (cotton, sugar beets, sunflower), fruits, vegetables, and medicinal herbs, improving crop quality and yield.
Ecological Agriculture Projects: Compatible with eco-friendly raw materials to produce green, organic-inorganic compound fertilizers, supporting sustainable agricultural development.

Related Products

To provide a one-stop solution for fertilizer production, we offer a full range of related equipment that can be matched with the NPK Production Line:

Granulation Equipment: Disc Granulator (0.3-6 t/h), Drum Granulator (1-200 t/h), Double Roller Extrusion Granulator (1-20 t/h), suitable for different granulation needs and production scales.
Pretreatment Equipment: Raw Material Crusher (input size ≤100mm, output size 0.1-5mm), Vibrating Screen, Metal Removing Device, ensuring raw material purity and fineness.
Mixing & Batching Equipment: High-Efficiency Mixer, Precision Batching Machine (1-4 hoppers, with electronic scales), ensuring uniform mixing and accurate nutrient ratio.
Drying & Cooling Equipment: Rotary Dryer, Drum Cooler, reducing moisture content and enhancing granule strength.
Packaging Equipment: Automatic Weighing & Packaging Machine, suitable for 25kg, 50kg, or customized bag sizes, improving packaging efficiency and accuracy.
Auxiliary Equipment: Dust Removal System (Cyclone + Filter), Belt Conveyor, Bucket Elevator, Silo, ensuring smooth production and environmental compliance.

Customer Application Cases

We have successfully delivered NPK production line projects to more than 2000 customers in over 50 countries and regions, accumulating rich international project experience. Below are typical cases:

Case 1: 1-2 t/h NPK Production Line in Ukraine
Customer Background: A new fertilizer entrepreneur in Ukraine, with limited factory space and small-scale production needs, focusing on safe and efficient production. The customer planned to produce basic NPK compound fertilizers for local small-scale farmers.
Solution: We provided a compact 1-2 t/h NPK production line, including a screw conveyor, double roller granulator, and manual packaging system, optimized for small-space installation. The line adopted a simple but efficient design, reducing initial investment while ensuring stable performance.
Results: The production line has been in stable operation for 18 months, with a granulation rate of 92% and low energy consumption. The customer’s products gained good market recognition, and within 2 months, they received financial and policy support from the local government. The customer is now expanding the production scale and adding new equipment.

Case 2: 10-20 t/h Large-Scale NPK Production Line in Indonesia
Customer Background: A well-known local fertilizer manufacturer in Indonesia, needing to expand production capacity to meet the growing demand for NPK fertilizers in the Southeast Asian market, with requirements for high automation and environmental compliance.
Solution: We customized a 10-20 t/h fully automated NPK production line, including raw material pretreatment, precise batching, drum granulation, drying, cooling, screening, automatic packaging, and dust removal systems. The line was equipped with an intelligent PLC control system for remote monitoring and operation, and a complete dust removal system to meet local environmental standards.
Results: The production line was put into operation in 2025, with a daily output of 200-400 tons. The automated system reduced labor costs by 30%, and the granulation rate reached 96%. The customer’s product supply capacity doubled, and they successfully expanded their market share in Southeast Asia, with products exported to Malaysia and Thailand.

Case 3: 4-6 t/h Customized NPK Production Line in Nigeria
Customer Background: A regional fertilizer supplier in Nigeria, focusing on producing crop-specific NPK fertilizers (e.g., high-potassium formulas for cash crops) to adapt to local soil conditions and market demand.
Solution: We provided a 4-6 t/h customized NPK production line, with a flexible batching system that can adjust nutrient ratios quickly, and a disc granulator suitable for small to medium-scale production. We also provided on-site installation, commissioning, and technical training to ensure smooth operation.
Results: The production line has been operating stably for 1 year, producing 3 types of customized NPK fertilizers that are popular among local farmers. The customer’s sales volume increased by 40% compared to before, and they have become a leading regional fertilizer supplier.