High-Efficiency Fertilizer Making Machine - Double Roller Granulator

The Double Roller Extrusion Granulator, also known as a Dry Granulation Machine or Roll Press Compactor, is an advanced industrial equipment designed for transforming fine powders into dense, uniform granules without liquid binders. This machine utilizes Roll Press Compaction technology, where two synchronized, counter-rotating rollers apply extreme mechanical pressure to force raw material through precisely designed molds.

This granulation equipment excels in material densification and is widely used in fertilizer production, chemical processing, and mineral agglomeration. It offers a clean, economical, and scalable solution for powder-to-granule conversion in continuous granulation processes.

• Dry Granulation Process: Produces granules without moisture or liquid binders, eliminating drying steps and saving energy.
• High Pressure Roller Compaction: Robust rollers with hydraulic/spring-pressure system deliver high compression for hard, dense granules.
• Excellent Material Densification: Increases bulk density, improving storage and transportation efficiency while reducing dust.
• Continuous Automated Operation: Designed for high-throughput production with stable output quality and minimal operator intervention.
• Versatile Material Processing: Handles fertilizers, chemicals, minerals, and industrial powders with customizable granule size/shape.
• Environmentally Friendly: Closed system minimizes dust pollution and avoids wastewater generation.
• Durable Construction: High-wear-resistant materials ensure long service life with low maintenance requirements.

This versatile machine serves multiple industries:

• Fertilizer Granulation: Produces compound fertilizers, NPK fertilizers, and organic-inorganic blends from materials like ammonium chloride and potassium chloride.
• Chemical Granulation: Processes pigments, dyes, resins, pesticides, and insecticides to improve flowability and reduce dust.
• Mineral/Metal Industry: Agglomerates metal powders, coal fines, carbon black, and ores for enhanced handling properties.
• Pharmaceutical/Food Industry: Provides dry granulation for powder formulations requiring improved compression or flow characteristics.
• Other Industries: Used in ceramics, refractories, and recycling industrial by-products into granular forms.

The continuous mechanical cycle includes:

1. Feeding: Uniform powder supply via screw conveyor into the hopper.
2. Compaction: Material enters the gap between counter-rotating rollers.
3. High-Pressure Extrusion: Rollers exert extreme pressure to compact material into solid sheets.
4. Sheet Formation: Compacted material exits as patterned sheets from mold cavities.
5. Crushing/Sizing: Sheets are broken into fragments and screened for uniform granules.
6. Recycling: Fines and oversized particles are reprocessed for zero waste.
7. Final Output: Uniform granules discharged for packaging or further processing.

For enhanced granule quality, this equipment can be paired with a spheroidizing machine for spherical shaping or integrated into complete automated production lines.

As a leading agricultural equipment supplier, we offer:

• Comprehensive agricultural equipment including various granulators, crushers, mixers, and complete production lines
• Expert technical support for equipment selection and process optimization
• Professional installation and commissioning services
• Customized training programs for operational and maintenance skills
• Reliable after-sales support with maintenance and genuine spare parts
• Customized solutions for small to large-scale fertilizer production

We are committed to delivering high-quality equipment and end-to-end support for global agricultural businesses.