Top 5 Granulation Technologies Used in Compost Fertilizer Production

Granulation is a crucial step in turning compost into marketable, easy-to-handle fertilizer pellets. It enhances product uniformity, reduces odor and dust, and makes transportation and application more efficient. Over the years, various compost granulation technologies have emerged, each with specific advantages. Here are the top 5 organic compost granulation technologies widely used in compost fertilizer production:

1. Rotary Drum Granulator

The rotary drum granulator is a robust and high-capacity machine suitable for large-scale compost granulation. Compost powder is fed into a rotating drum where moisture and binder are added to agglomerate the material into round granules. This method is ideal for continuous production and can handle a wide range of organic materials. It also works well in complete NPK or bio-organic fertilizer lines.

2. Disc (Pan) Granulator

Disc granulators are popular in medium-scale compost pellet making operations due to their simple structure and ease of control. The compost powder is fed into a shallow pan that rotates at an angle, causing particles to roll and form pellets. Operators can adjust the inclination and rotation speed to control granule size. This machine is energy-efficient and works best when compost moisture content is between 25–35%.

3. Flat Die Granulator

The flat die granulator compresses compost powder through a die plate to form cylindrical granules. It’s especially effective for dry or low-moisture materials and is favored by small farms and niche organic fertilizer producers. Its dry granulation process eliminates the need for drying or cooling equipment, reducing operational costs.

4. Double Roller Extrusion Granulator

This dry compost granulation technology uses mechanical pressure to compress compost powder into oblong or pillow-shaped granules. It is widely used in facilities with limited space or those looking for low energy consumption and zero drying requirements. The machine operates at room temperature and is ideal for materials sensitive to heat.

5. New Type Organic Fertilizer Granulator

Also known as a stirring tooth or wet granulator, this modern machine uses high-speed rotary blades to mix and granulate moist compost. It produces uniform, round granules and works best with fermented organic matter. It is often part of advanced composting lines focused on high-nutrient organic fertilizers.

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Choosing the right granulation technology depends on factors like raw material properties, production capacity, moisture content, and budget. Each machine offers unique advantages, and selecting the optimal system can significantly improve production efficiency and product quality in compost fertilizer manufacturing. if you are interested in the machine, you can visit https://www.granulatedcompostsolutions.com/product/compost-granulating-machine/