Working Video

Introduction

The compound fertilizer production line is an automated production line specifically designed for the large-scale production of compound fertilizer. It is suitable for projects with an annual production capacity ranging from tens of thousands to hundreds of thousands of metric tons of compound fertilizer. This production line can be widely applied to a variety of raw materials, including urea, ammonium sulfate, monoammonium phosphate, diammonium phosphate, potassium chloride, potassium sulfate, ammonium chloride, and humic acid. It also allows for the addition of trace elements such as zinc, boron, iron, and magnesium according to formulation requirements, enabling the continuous production of compound fertilizers with diverse formulations. The entire production process includes raw material blending, grinding, mixing, drum granulation, drying, cooling, screening, coating, and packaging. It produces high-quality spherical fertilizer granules with a particle size of 2–10 mm and a granulation rate of over 90%. If you require a compound fertilizer production line with small to medium capacity, please review our double roller extrusion type NPK production line.

The compound fertilizer production line employs a mature and stable wet granulation process. After automatic batching, grinding, and mixing, the material enters the drum granulator, where steam, moisture, and the material interact to form uniform granules. The granules then sequentially undergo drying, cooling, screening, coating (optional), and automatic packaging, ultimately yielding the finished compound fertilizer. The complete production line typically includes equipment such as an automatic batching system, a crusher, a mixer, a drum granulator, a drum screen, a dryer, a cooler, a coating machine, and a packaging machine. With a production capacity ranging from 3 to 20 metric tons per hour, it offers advantages such as high throughput, a high degree of automation, high production efficiency, stable equipment operation, flexible formulation adjustments, and round, uniform granules, making it suitable for continuous, large-scale production needs.

Compound fertilizers produced using this production line feature regular spherical granules with high strength, excellent transportability, and resistance to breakage, as well as uniform nutrient distribution. The ratios of nitrogen, phosphorus, potassium, and trace elements can be flexibly adjusted to meet the specific needs of different crops and soils, resulting in compound fertilizer products with balanced nutrition and consistent quality. This production line is widely applicable to large-scale compound fertilizer manufacturers, large NPK fertilizer processing plants, chemical fertilizer manufacturers, and new or expanded fertilizer production projects. Tell us your raw material types, target output, and formulation requirements, and our engineers will provide you with a free, customized compound fertilizer production solution.

Advantages

1. High-Capacity Continuous Production
The compound fertilizer production line employs a continuous production process. A single unit can achieve a production capacity of 3–20 metric tons per hour, meeting the long-term, stable production needs of large-scale compound fertilizer enterprises. The entire line operates seamlessly, ensuring high production efficiency, effectively reducing labor costs, and increasing the enterprise’s overall output and economic benefits.

2. Round, High-Quality Granules
Utilizing the wet drum granulation process, the resulting fertilizer granules are round, plump, and uniform in size, with a granulation yield exceeding 90%. The granules are highly robust, resistant to pulverization and breakage, and withstand transportation and storage well, meeting market demand for high-quality compound fertilizer products.

3. High Degree of Automation
The entire production line is equipped with automated systems for batching, conveying, granulation, screening, drying, cooling, coating, and packaging, enabling automated continuous production. PLC-based intelligent control reduces manual intervention, enhances production stability, and simultaneously lowers operational complexity and equipment running costs.

4. Flexible Formulations with Broad Applicability
The production line can flexibly adjust the ratios of nitrogen, phosphorus, and potassium to meet the needs of different crops and soils. It also allows for the addition of trace elements such as zinc, boron, iron, and magnesium, as well as functional ingredients like humic acid. This makes it suitable for producing a wide variety of compound fertilizer formulations to meet the fertilization needs of different regions and markets.

Main Equipments

Equipments for rotary drum granulator fertilizer production line:

Workflow

1. Automatic Batching
Based on the preset fertilizer formula, the automatic batching system precisely weighs and controls the proportions of raw materials such as urea, phosphate fertilizer, and potash, providing stable and accurate raw material ratios for subsequent production and ensuring consistent product quality.

2. Raw Material Grinding
Raw materials that are caked or have large particle sizes are fed into a crusher for fine grinding. This process ensures a more uniform particle size distribution, improves mixing efficiency, and creates optimal conditions for subsequent wet granulation.

3. Uniform Mixing
The crushed raw materials are fed into a mixer for thorough blending, ensuring that nitrogen, phosphorus, potassium, and trace elements are evenly distributed. This enhances formulation consistency and provides a uniform, stable mixture for granulation.

4. Drum Wet Granulation
The mixed material enters the drum granulator, where it continuously agglomerates into granules under the combined action of steam, moisture, and rotation, ultimately forming spherical compound fertilizer granules with uniform particle size, a rounded and plump shape, and high strength.

5. High-Efficiency Drying
The newly formed wet granules enter the dryer, where their moisture content is rapidly reduced to improve granule hardness and stability, thereby preventing issues such as caking and deformation during storage and transportation.

6. Rapid Cooling
The high-temperature granules emerging from the dryer enter a cooler for rapid cooling, which further enhances granule strength, reduces moisture reabsorption, and improves the storage performance of the finished fertilizer as well as subsequent packaging efficiency.

7. Finished Product Screening
The cooled granules are graded using a drum screen; those meeting specifications proceed to the next process, while oversized or undersized granules are returned to the production line for re-granulation, thereby improving the overall granulation yield.

8. Granule Coating
Qualified granules enter the coating machine, where an anti-caking agent is evenly sprayed onto their surfaces. This effectively reduces moisture absorption and caking, improves the appearance of the granules, and enhances storage stability and market competitiveness.

9. Automatic Packaging
After coating, the finished fertilizer enters the automatic packaging system, where processes such as weighing, bagging, and sealing are completed. The packaged products can be directly stored, transported, or sold, enabling continuous production.

Working Project

With over two decades of deep expertise in the fertilizer equipment manufacturing industry, our compound fertilizer production lines have been successfully deployed in fertilizer production projects across numerous countries and regions in Asia, Africa, the Middle East, South America, and Australia, where they continue to operate stably. Leveraging our extensive project implementation experience and proven compound fertilizer production processes, we provide customers with one-stop solutions—from raw material analysis and process design to equipment manufacturing, installation, and commissioning—to help them build efficient, stable, and intelligent compound fertilizer production plants.

Backed by a professional technical team and a comprehensive service system, we can tailor compound fertilizer production line solutions based on our clients’ raw material characteristics, target production capacity, product formulations, plant conditions, and investment requirements. These solutions encompass the entire production process—including automatic batching, mixing, granulation, drying, cooling, screening, coating, and packaging—to ensure a smooth production flow and optimal equipment configuration.

From project planning, equipment manufacturing, and export shipping to on-site installation and commissioning, we provide end-to-end technical support to continuously optimize production efficiency, granule quality, and equipment operational stability. Whether for NPK compound fertilizer or functional compound fertilizer production projects, we can provide specialized, customized solutions tailored to our clients’ needs. With reliable equipment performance, proven production technology, and comprehensive after-sales service, we help clients worldwide achieve rapid commissioning and long-term, stable operation of their compound fertilizer projects, continuously enhancing production efficiency and market competitiveness.

Delivery

Our compound fertilizer production lines have been successfully exported to numerous overseas markets, including Asia, Australia, Africa, the Middle East, and South America. Leveraging our proven manufacturing expertise and comprehensive international delivery system, we provide stable and efficient fertilizer production solutions to customers worldwide. From equipment design and manufacturing to on-site installation and delivery, we enforce strict quality management standards at every stage to ensure that the entire compound fertilizer production line arrives safely and on time at the customer’s project site.

Given the large number of components, complex structure, and substantial size of compound fertilizer production line equipment, we develop specialized packaging and loading plans prior to shipment based on equipment models, structural characteristics, transportation distance, and local transportation conditions. Large equipment is transported via 20′ GP and 40′ HQ containers or as breakbulk cargo. Critical equipment components undergo reinforcement, moisture protection, and impact protection treatments to ensure that core equipment—such as drum granulators, dryers, screeners, and conveying equipment—remains in excellent condition during long-distance transport.

Our professional international trade team manages the entire export process, including equipment inspection, preparation of export documentation, container loading arrangements, international logistics coordination, and shipment tracking, providing customers with a hassle-free delivery experience. Whether projects are located in Southeast Asia, Australia, Africa, the Middle East, or South America, we adhere to high standards for equipment delivery and comprehensive after-sales support, helping customers quickly complete the installation and commissioning of their compound fertilizer production lines to achieve stable production and long-term operational value.

FAQ

Working Video

Introduction

The NPK fertilizer production line is an automated production system that uses a dry extrusion granulation process to produce nitrogen-phosphorus-potassium (NPK) compound fertilizers. It is primarily suitable for small- to medium-sized fertilizer production projects with a capacity of 1–10 metric tons per hour. This production line requires no added water or steam. It uses mechanical pressure to mix and compress basic NPK raw materials—such as urea, monoammonium phosphate (MAP), diammonium phosphate (DAP), potassium chloride, potassium sulfate, and ammonium sulfate—into uniform granules, producing fertilizer granules with a particle size of approximately 2–10 mm. Depending on different fertilizer formulation requirements, the production line can flexibly adjust nitrogen, phosphorus, and potassium ratios to meet the production needs of NPK compound fertilizers and compound fertilizers of various concentrations. The NPK fertilizer production line features low investment costs, a small footprint, and a simple production process, making it particularly suitable for small- to medium-sized fertilizer plants, agricultural enterprises, and customers who need to rapidly establish production projects. If you require large-scale, continuous, high-capacity compound fertilizer production, please review our large-scale turnkey equipment: the compound fertilizer production line utilizing the rotary drum wet process.

The NPK fertilizer production line primarily consists of an automatic batching system, a crusher, a mixer, a disc feeder, a double roller extrusion granulator, a screening machine, a coating machine, and an automatic packaging machine. During the production process, raw materials are first precisely measured and automatically blended. They are then uniformly mixed using crushing and mixing equipment to ensure even distribution of nutrients. The mixture is fed evenly into the double roller extrusion granulator via a disc feeder, where it is compressed into granules under high pressure. After crushing and screening, qualified granules can undergo coating as needed, followed by automatic packaging. The entire production line features a high degree of automation and stable production efficiency. It eliminates the need for drying and cooling stages, resulting in low operating costs and easy operation and maintenance. Additionally, fertilizer formulations can be quickly adjusted to meet market demands, enhancing production flexibility.

The fertilizer granules produced by the NPK fertilizer production line are characterized by uniform size, compact structure, high granule strength, resistance to breakage, and balanced nutrient distribution. These features effectively improve the stability of the fertilizer during storage and transportation. This production line is widely applicable to compound fertilizer manufacturers, chemical fertilizer processing enterprises, agricultural cultivation bases, and fertilizer project investors, and can be used to produce NPK fertilizer products of various specifications and formulations. Regardless of your raw material type, production scale, or product requirements, we can provide professional design solutions tailored to your specific circumstances. Tell us your raw materials and target output, and our engineers will customize a dedicated double roller extrusion NPK fertilizer production solution for you free of charge.

Advantages

1. Flexible Formulation
The NPK fertilizer production line can flexibly adjust the ratios of nitrogen, phosphorus, and potassium according to the nutritional needs of different crops to produce a variety of compound fertilizer formulations. By controlling raw material feed rates through a precise batching system, it meets market demands for high-nitrogen, high-phosphorus, high-potassium, and specialty fertilizers.

2. Consistent Granule Quality
Advanced granulation technology ensures that the produced fertilizer granules are uniform in size and compact in structure, with excellent granule strength and resistance to breakage. The finished fertilizer features a more balanced nutrient distribution, is less prone to caking, and is convenient for storage, transportation, and mechanized application.

3. High Level of Automation
The NPK fertilizer production line is equipped with automated batching, conveying, granulation, screening, and packaging systems, enabling continuous and intelligent production. This reduces manual labor, improves production efficiency, and minimizes errors during the production process, ensuring more stable and reliable equipment operation.

4. Wide Range of Applications
This production line is suitable for a variety of nitrogen, phosphorus, and potassium fertilizer raw materials, including urea, ammonium phosphate, potassium chloride, and potassium sulfate, and can produce NPK and compound fertilizers in various concentrations. It is widely used in fertilizer plants, agricultural enterprises, and large-scale cultivation projects.

Main Equipments

All equipments for processing compound fertilizer:

Workflow

1. Automatic Raw Material Batching
In accordance with NPK fertilizer formulation requirements, nitrogen, phosphorus, and potassium raw materials—such as urea, ammonium phosphate, potassium chloride, and potassium sulfate—are precisely weighed and automatically conveyed according to preset ratios. This ensures accurate proportions of various nutrients and provides a stable foundation for subsequent mixing and granulation.

2. Raw Material Crushing
Some raw materials entering the production line may be clumped or have excessively large particles. These must be processed through a crusher to achieve the fineness required for mixing, increase the contact area between different raw materials, and ensure a smoother subsequent production process.

3. Material Mixing and Agitation
After crushing and batching, the various raw materials enter the mixer, where they are thoroughly agitated to ensure uniform distribution of nutrients such as nitrogen, phosphorus, and potassium. Thoroughly mixed material improves the consistency of fertilizer nutrients and provides high-quality feedstock for subsequent granulation.

4. Uniform Feeding
The mixed material is continuously and uniformly conveyed via a disc feeder, delivering it steadily into the twin-roll extrusion granulator. This process prevents equipment instability caused by uneven material supply and enhances the continuous production capacity of the entire production line.

5. Double Roller Extrusion Granulation
The uniformly mixed material enters the double roller extrusion granulator, where it is compressed and shaped under high pressure by two extrusion rollers, transforming the powdered material into fertilizer granules with a certain degree of strength. The typical granule size produced is 2–10 mm.

6. Granule Screening
After granulation, the fertilizer enters a screening machine, where it is sorted by particle size. Qualified granules proceed to the next process, while oversized granules or powder that do not meet requirements are returned to the beginning of the line for reprocessing, thereby improving raw material utilization and finished product quality.

7. Fertilizer Granule Coating
The screened, qualified fertilizer granules enter the coating machine, where a protective coating is applied to improve the surface properties of the granules. This enhances the fertilizer’s resistance to moisture and caking, improves the product’s appearance, and extends its storage and transportation life.

8. Automatic Weighing and Packaging
The processed finished fertilizer enters the automatic packaging machine, where precise weighing, bagging, and sealing operations are performed to ensure rapid packaging of the fertilizer products. This automated packaging process improves production efficiency, reduces labor costs, and facilitates subsequent transportation and sales.

Working Project

With over two decades of deep expertise in the fertilizer equipment manufacturing industry, our NPK fertilizer production lines have been successfully deployed in fertilizer production projects across numerous countries and regions worldwide. These lines have maintained stable operation in actual production, enabling us to accumulate extensive project implementation experience and develop mature compound fertilizer production processes. Leveraging our comprehensive technical service system, we provide one-stop services ranging from production line design, equipment selection, process planning, and installation guidance to commissioning and start-up, ensuring an efficient and smooth project construction process.

Based on your specific needs, we will tailor a scientific and reasonable NPK fertilizer production solution for you, taking into account the characteristics of your raw materials as well as your target output, product formulations, plant conditions, and production requirements. By optimizing key processes such as automatic batching, mixing, granulation, screening, coating, and packaging, we enhance the automation level and operational efficiency of the production line. This ensures that the finished fertilizer granules are uniform, with stable nutrient content and reliable quality, helping our customers achieve long-term, efficient, and safe fertilizer production operations.

Delivery

Our NPK fertilizer production lines have been successfully exported to numerous overseas markets, including Asia, Australia, Africa, the Middle East, and South America. Leveraging our proven manufacturing processes, comprehensive export procedures, and extensive experience in delivering international projects, we provide you with reliable and efficient equipment delivery services. From the completion of equipment production to on-site installation, we have established rigorous quality inspection and logistics management systems to ensure that every NPK production line arrives safely and on time at your site.

Prior to shipment, we develop a specialized packaging plan based on the equipment configuration, structural characteristics, dimensions, and transportation distance of the NPK fertilizer production line. For large and main equipment, we use wooden crates or 20GP and 40HQ containers for proper loading and transport; for critical components such as motors, control cabinets, and spare parts, we employ moisture-proof, impact-resistant, and reinforced packaging to minimize the risk of damage during long-distance transport and ensure the equipment remains fully functional.

With our professional international trade team, we can assist you throughout the entire process—including equipment inspection, export customs clearance, transportation arrangements, document preparation, and logistics tracking—to ensure the NPK fertilizer production line export process runs efficiently and smoothly. Whether your project is located in Asia, Australia, Africa, Europe, the Middle East, or South America, we will provide you with reliable fertilizer production solutions based on strict quality standards and professional delivery capabilities, helping your fertilizer project achieve rapid installation and commissioning, as well as long-term, stable operations.

Working Video

Introduction

The extrusion granulation production line is widely used in the production of compound fertilizer granules, mainly used to produce spherical granules with a diameter of 1mm-5mm. The equipment has low investment, quick effect, low energy consumption, compact layout, scientific and reasonable, no waste removal, and stable operation. Wide adaptability of raw materials, can be used for granulation of various raw materials such as compound fertilizer, medicine, chemical industry, feed, etc., high granulation rate, can produce various concentrations, various types (including organic fertilizer, inorganic fertilizer, biological fertilizer, magnetic fertilizer etc.) compound fertilizer.

Finished Granules

You can choose granules with different shapes and size:

Working Project

1-20t/h NPK compound fertilizer production line with roller press granulator：

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

The production line of granules organic fertilizer is a complete fertilizer production process with more investment. The organic fertilizer production line is commonly used to process different fermented organic substance into bio-organic fertilizer. It adopts one-step molding technology. Animal manure and agricultural waste are recycled as the main raw materials, thus manure or dung waste is not only creating economic benefits for the enterprise, but also making a great contribution to environmental projects for mankind. The finished fertilizer processed by the pellet organic fertilizer production line can be preserved for a long time.

Finished Granules

Working project

1-20t/h organic fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

The compound fertilizer production line with drum granulator is widely used in the granulation of various raw materials such as compound fertilizer, mineral, chemical industry and so on. Drum granulating machine is one of the key equipment in the compound fertilizer industry, suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizer. The main working method is wet granulation. Through a certain amount of water or steam, the basic fertilizer is fully chemically reacted after the humidity is adjusted in the cylinder. Under certain liquid phase conditions, the rotation of the cylinder makes the material particles Generate extrusion force to agglomerate into balls.

Finished Granules

Working Project

Rotary drum granulator fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

The disc pelletizing line is often used to process different fermented organic matter into bio organic fertilizer and production of compound fertilizer. One step molding technology is adopted. With livestock and poultry manure and agricultural waste as the main raw materials,Including: bentonite, kaolin, sludge, dry residue, ash, straw carbon and humic acid. manure or manure waste not only created economic benefits for enterprises, but also made great contributions to human environmental engineering. And then, the combined screen of powder sieve machine is adopted, and the final packing machine is automatically packed by the screw conveyor of the coating machine to complete the disc granulation production line.

Finished Granules

Working Project

Disc granulator fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

The production line of powdered organic fertilizer is a simple fertilizer production process with less investment. The equipment required for this production line is also very simple, which are as follows: compost turner, forklift feed bin, crushing machine, mixing machine, screeing machine and packaging machine. It has the characteristics of low investment and high return.

Working project

Powder organic fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

This production line is mainly used for (bio) organic fertilizer and pellet processing in the aquaculture processing industry. There is no need to dry and pulverize the raw materials before granulation, and the cylindrical granules can be directly batched and processed, which saves a lot of energy. The surface of the granular material processed by this machine is smooth and clean, with moderate hardness, low temperature rise during processing and good maintenance of various nutrients inside the raw material; the diameter of the particle size can be divided into: Φ2, Φ2.5, Φ3.5, Φ4, Φ5, Φ6, Φ7, Φ8, etc. Users can choose according to production needs when ordering.

Finished Granules

Working project

Organic fertilizer production line with flat die extrusion granulator:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

The bulk blending fertilizer is a kind of compound granule fertilizer mixer for several single fertilizers or compound fertilizers according to certain proportion. It has characters of granule uniformity, less water, granule intensity moderate, no agglomeration store, easy to use and low cost. BB fertilizer production line usually includes 3 processes, batching, mixing and packaging.

Advantages

1. Mix evenly and discharge smoothly;

2.Low cost, less land occupation, high output;

3.Reasonable design, convenient operation, reducing equipment investment;

4.Advanced technology, high degree of automation, low energy consumption (0.3 thousand tons of electricity consumption), can reduce the labor force very well;

5.Stainless steel materials and imported electrical equipment are used to ensure the service life and operation stability of the equipment.

Finished Granules

Working Project

Bulk blending fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container

Working Video

Introduction

Wet stirring tooth granulator uses high speed rotary mechanical mixing force and the resulting aerodynamic force, so that the fine powder material in the machine to achieve continuous mixing, granulation, spheroidization, densification and other processes, so as to achieve the purpose of granulation.The combination of these two granulation methods makes the granules with higher pellet formation rate, more beautiful appearance, energy saving and energy saving.

Finished Granules

Working Project

Organic compound fertilizer production line from our old customers:

Delivery

Package : wooden package or full 20GP/40HQ container