Roller Extrusion Granulation Production Line: An Efficient Solution for Compound Fertilizer Manufacturing

With the continuous development of modern agriculture, fertilizer manufacturers are increasingly looking for efficient, energy-saving, and flexible production solutions. The roller extrusion granulation production line has become an important choice for producing compound fertilizer, NPK fertilizer, and other granular materials due to its simple process, stable operation, and wide application range.

The roller extrusion granulation production line adopts a complete processing system, including:

• batching
• mixing
• extrusion granulation
• screening
• drying
• cooling
• coating
• packaging processes

The production starts with the batching system, where different raw materials are accurately measured according to the required fertilizer formula. After batching, materials enter the twin-shaft mixer for uniform mixing, ensuring consistent nutrient distribution before granulation.

The mixed materials are then transported to the roller extrusion granulator, where high pressure between two rollers compresses the materials into dense granules. This dry granulation method does not require additional water or steam, making it suitable for various fertilizer materials.

Compared with traditional wet granulation methods, roller extrusion granulation reduces the need for drying processes and simplifies the production flow. The extrusion process forms compact particles with good mechanical strength and convenient storage characteristics.

After extrusion, the materials enter the screening machine to separate qualified granules from oversized or undersized particles. The unqualified materials can be returned to the production process for reprocessing, improving material utilization.

For production requirements that need additional treatment, the system can be equipped with a dryer, cooling machine, and coating machine.

The dryer removes excess moisture from fertilizer granules, while the cooling machine reduces temperature to improve storage stability. The coating machine can add protective layers to fertilizer particles, helping improve product appearance and reduce nutrient loss during transportation and storage.

The roller extrusion granulation production line is widely used for producing:

• NPK fertilizer
• compound fertilizer
• BB fertilizer
• mineral fertilizer products

It can process various raw materials, including nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, and other compound materials.

With adjustable production capacity and flexible equipment configuration, the line can be customized according to different raw material characteristics, fertilizer formulas, and factory layouts.

The roller extrusion granulation production line integrates multiple processing units into one complete fertilizer manufacturing system. Through accurate batching, efficient mixing, high-pressure extrusion, and automatic screening and packaging, it provides fertilizer manufacturers with a practical solution for continuous and standardized production.

For enterprises seeking efficient fertilizer processing technology, the roller extrusion granulation line offers advantages in process simplicity, material adaptability, and production flexibility, making it suitable for modern compound fertilizer production projects.