Compound Fertiliser Granulation Production Line
Turn NPK, Minerals & Organic Additives into High-Nutrient Granular Compound Fertilizer – Industrial-Grade Fertilizer Production Solutions
Customised Compound Fertiliser Granulation Production Line Overview
The industrial compound fertilizer granulation line is a purpose-built integrated system that turns NPK single fertilizers (urea, ammonium phosphate, potassium chloride), mineral raw materials, and organic additives into uniform granular compound fertilizer. It runs through crushing, mixing, granulation, drying, cooling, and packaging—all with intelligent NPK compound fertilizer granulation equipment—to nail precise nutrient ratios and efficient granulation. It works for grain fields, cash crops, vegetables, fruits, and greenhouses, making it perfect for large-scale compound fertilizer manufacturers, agricultural groups, and export-focused fertilizer businesses.
Production Capacity of Compound Fertiliser Granulation Production Line
Production capacity
Small-scale compound fertilizer granulation line: 5,000–15,000 tons/year
Ideal for local fertilizer suppliers, rural cooperatives, or new fertilizer startups. It comes with low-cost compound fertilizer granulation equipment and takes up little space, so you can process local raw materials to meet regional farm granular compound fertilizer needs. It’s cheap to start, easy to run, and gets you a fast return on investment.
Medium-scale compound fertilizer granulation line: 15,000–30,000 tons/year
Designed for medium-sized businesses with established sales channels. It balances efficiency and cost control, churning out steady batches of commercial-grade NPK compound fertilizer to supply provincial agricultural markets and bulk compound fertilizer distributors. You’ll get consistent particle quality and spot-on nutrient ratios every time.
Large-scale compound fertilizer granulation line: 30,000+ tons/year
Built specifically for national fertilizer groups and export-focused enterprises. It uses highly automated compound fertilizer granulation systems and smart PLC control to mass-produce export-grade granular compound fertilizer (meeting EU, US, and Southeast Asia standards). It supports bulk granular compound fertilizer export and large-scale agricultural supply chain projects.
Equipment Configuration of Compound Fertiliser Granulation Production Line
Equipment Configuration
1. Raw Material Receiving and Pre-processing Equipment
- Raw material silos for compound fertilizer production: Large silos built according to the characteristics of raw materials such as urea, monoammonium phosphate, potassium chloride, etc. The material can be steel or concrete, with moisture-proof, rain-proof, and rodent-proof functions, and equipped with material level sensors for real-time inventory monitoring. For example, urea silos have a capacity of up to 50-100 cubic metres, and potassium chloride silos range from 30-80 cubic metres.
- Conveying equipment for compound fertilizer line: A combination of belt conveyors and bucket elevators accurately conveys raw materials from the receiving area to raw material silos, ensuring continuous and efficient raw material supply for the granulation process.
- Vibrating screen for compound fertilizer raw materials: Effectively removes large impurities and lumps in raw materials. The screen aperture can be flexibly adjusted between 1 – 5 mm according to raw material properties, ensuring uniform raw material particle size for subsequent processing.
- Crusher for compound fertilizer (optional): For raw materials with serious lumps or large particles (such as some potash fertilisers), jaw crushers and hammer crushers are available for crushing, meeting the particle size requirements of compound fertilizer granulation equipment.
2. Batching Equipment
- High precision electronic batching scale for compound fertilizer: Composed of load cells (accuracy ±0.1%), instruments, control systems, and feeding devices. The system displays, stores, and transmits data, while the control module regulates feeding per formula instructions—achieving batching accuracy within ±0.5%. Feeding devices (screw, belt, or vibrating) are selected based on raw material type.
- Automatic compound fertilizer batching control system: A professional computerised system with recipe management, production scheduling, equipment monitoring, and data analysis functions. Operators can control and monitor operations centrally, ensuring accurate, efficient batching for consistent fertilizer quality.
3. Mixing Equipment
- Biaxial mixer for organic compound fertilizer: Built with high-quality carbon steel or stainless steel, dual counter-rotating paddle shafts blend raw materials thoroughly in minutes—achieving over 95% mixing uniformity. The bottom discharge door (pneumatic or electric) enables fast, low-residue unloading.
- Rotary drum mixer for compound fertilizer (optional): Consists of a carbon steel or stainless steel cylinder, supporting wheels, and transmission devices. Internal lifting plates enhance mixing as the cylinder rotates, offering a simple structure, reliable operation, and easy maintenance. Ideal for large-scale continuous compound fertilizer production.
4. Granulation Equipment
- Rotary drum granulator for compound fertilizer (optional): Features a carbon steel or stainless steel cylinder with internal lifting plates. After feeding, binder solution is sprayed, and materials roll into granules—with adjustable parameters for size and shape, suitable for various compound fertilizer formulas.
- Disc granulator for compound fertilizer (optional): An inclined rotating disc works with simultaneous feeding, binder spraying, and auxiliary material addition to produce high-roundness granules. It’s flexible, low-cost, and perfect for small to medium-sized compound fertilizer plants.
- Extruding granulator for compound fertilizer (optional): Uses rollers and feeding devices to shape powdery raw materials (urea, phosphate fertilizer, potash powder, organic fertilizer) into high-strength granules. It excels at handling difficult-to-granulate compound fertilizer raw materials.
5. Cooling and Screening Equipment
- Counter-current cooler for compound fertilizer: Equipped with cooling ducts and material channels, cold air flows in reverse to cool particles to near room temperature. This enhances stability and water resistance, extending the finished product’s shelf life.
- Air-cooled cooler for compound fertilizer (optional): A simple setup of fans, ducts, and conveyors—ideal for small-scale production or low-cooling-demand scenarios, cutting equipment costs.
- Vibrating screen for compound fertilizer finished products: Double or multi-layer stainless steel wire/perforated plate screens (apertures matched to product specs) separate unqualified large particles, fine powder, and clumps. Driven by vibration motors, it ensures uniform, intact finished products that meet industry standards.
6. Coating Equipment (optional)
- Coating machine: such as spray coating coating machine, roll coating coating machine and fluidised bed coating machine, etc., according to the process selection, the coating material (resin, sulphur, wax, etc.) will be uniformly wrapped on the surface of the granule, to improve the performance of the fertiliser.
- Coating material storage and conveying system: the coating material is stored in tanks or silos, with screw pumps and other conveying equipment, to prevent moisture and deterioration, and stable material supply.
7. Bagging and Palletising Equipment
- Automatic compound fertilizer bagging machine: Granule or powder-compatible, tailored to your specs and speed needs. It integrates feeding, metering, packaging, sealing, and coding—operating at 5–20 bags per minute. Suitable for plastic woven bags, paper bags, or composite film bags.
- Compound fertilizer palletising equipment: Robotic or automatic palletisers stack bags per preset patterns, simplifying forklift handling and warehouse management. It boosts logistics efficiency and space utilisation, reducing labour costs for large-scale operations.
Production Process of Compound Fertiliser Granulation Production Line
Production process
1. Raw Material Receiving and Cleaning
Raw materials are transported to the plant and unloaded into the receiving area. After conveying into the vibrating screen in addition to large particles of impurities, and then by the magnetic separator in addition to magnetic metal impurities, into the raw material warehouse.
2. Crushing (Optional)
According to the requirements of the formula, the raw materials from the warehouse through the conveyor into the crusher. Crushed to the appropriate particle size into the batching bin.
3. Batching
The mixer stirs the raw materials thoroughly to make the nutrients evenly distributed. Mixture into the granulator.
4. Mixing
The mixing machine will mix the ingredients fully, so that the various nutrients are evenly distributed in each grain of feed. The evenly mixed material enters into the tempering device through the conveying equipment.
5. Granulation
According to the selected granulator (drum, disc or extrusion) to make the material into granules. Pellets into the drying equipment.
6. Cooling
The drying equipment removes excess moisture from the pellets to a standard of 2% - 5%. The dried pellets are fed into the cooling and sieving process.
7. Cooling and Sieving
The cooler will cool the particles to room temperature and improve the stability. Vibrating sieve removes rejected products and qualified granules go to film coating (if any) or packaging.
8. Coating (Optional)
If the film is wrapped, the particles will be wrapped with film material in the film wrapping machine. The coated granules will be packed.
9. Packaging and Palletising
Pellets are bagged and packed to specification weight and the finished product is warehoused or shipped. If palletising is required, the packaged product will be palletised by the palletising equipment for storage and transport.
Raw Material Type of Compound Fertiliser Granulation Production Line
Raw material type
Our livestock pellet feed production line is suitable for a wide range of ingredients, including but not limited to the following categories:
Nitrogen fertiliser
Urea, ammonium chloride, etc., to promote stem and leaf growth and photosynthesis.
Potassium fertiliser
Potassium chloride, potassium sulphate, etc., increase crop resistance, improve fruit quality and yield.
Phosphorus fertiliser
Monoammonium phosphate, calcium superphosphate, etc., for root development, flowering and fruiting, and seed maturity.
Trace element fertiliser
Boron fertiliser, zinc fertiliser, molybdenum fertiliser, etc., to prevent deficiency diseases and improve crop quality and yield.
Organic Fertiliser Raw Material
Livestock and poultry manure, humic acid, plant straw and other powders, change the soil structure and fertility.
Finished Product Specifications of Compound Fertiliser Granulation Production Line
Finished product specifications
Pellet shape
Commonly cylindrical, other shapes can be customised according to customers’ requirements, such as square, triangular, etc.
Pellet size
Depending on the type of poultry 1-2 weeks old 1.5-2 mm, 3-4 weeks old 2-3 mm, after 5 weeks old 3-5 mm.
Pellet hardness
The hardness (50 – 70 Newton) ensures that the pellets do not break or produce excessive powder during transport, storage and feeding.
Nutrition
Scientifically formulated to meet the poultry’s needs for protein, energy, vitamins, minerals and other nutrients.
Schematic Diagram of Production Process of Compound Fertiliser Granulation Production Line
Production Process Diagram
Successful Cases of Compound Fertiliser Granulation Production Line
Successful Cases
China A compound fertiliser granulation line in Shandong Province
A compound fertiliser granulation and processing plant in the Philippines
A granular compound fertiliser processing plant in India
Contact Us Today For A Free Quote!
If you’re looking to build or upgrade a customized compound fertilizer granulation line (small/medium/large-scale), our technical team will create a solution that fits your exact needs:
✅ Tailored compound fertilizer granulation line design based on your target nutrient ratios (NPK formulas), raw materials, and production capacity.
✅ Free cost-benefit analysis and industrial NPK granulation equipment quotation (drum/disc granulators, mixers, dryers, screening systems, etc.).
✅ On-site testing with your raw materials to check granular compound fertilizer quality (nutrient uniformity, particle strength, moisture content) and production efficiency firsthand.
Reach out now to turn raw materials into profitable high-quality granular compound fertilizer with our advanced production solutions!