When it comes to bio fertilizer production, granulation machines are essential for transforming raw materials into uniform, marketable granules. Here is a technical overview of bio fertilizer granulation machines available for sale.

1. Common Types of Granulation Machines

1.1 Drum Granulation Machine

Drum granulation machines are widely used due to their high production capacity. They consist of a rotating drum, usually made of stainless steel, with an inclination angle of 2° - 5° and a rotational speed of 10 - 30 rpm. The drum's internal structure may include lifters to enhance material movement, enabling continuous granulation through particle agglomeration.

1.2 Disc Granulation Machine

Disc granulators feature a rotating disc tilted at an angle of 45° - 65°. As the disc rotates at 20 - 40 rpm, materials are thrown outward by centrifugal force while being shaped into spherical granules. This type is suitable for producing granules with high sphericity and a narrow size distribution.

1.3 Double - Roller Granulation Machine

Double - roller granulators work by pressing materials between two counter - rotating rollers with specially designed grooves. The pressure applied forms granules with high density and strength, making them ideal for fertilizers that require durability during handling and storage.

2. Working Principle

Regardless of the type, granulation machines rely on the basic principle of aggregating fine - powdered bio fertilizer materials into larger particles. Liquid binders, such as organic polymers or starch - based solutions, are often introduced during the process. These binders coat the surfaces of particles, and through repeated collisions and compactions within the machine, the particles adhere to each other, gradually growing into granules.

3. Technical Parameters

Most granulation machines have adjustable parameters to control granule characteristics. The production capacity can range from 1 - 10 tons per hour, depending on the model. Granule size is typically adjustable between 2 - 5 mm, and the moisture content of the final granules can be controlled within 8 - 12%. Machines are also designed to operate within a temperature range of 50 - 80°C to optimize binder performance. Click here to get more!

4. Applicable Raw Materials

Bio fertilizer granulation machines can process a wide variety of raw materials, including organic substances like compost, manure, and crop residues, as well as inorganic components such as nitrogen, phosphorus, and potassium compounds. They are capable of handling mixtures with different moisture contents and particle sizes, providing flexibility in production.

5. Considerations for Purchase

When choosing a bio fertilizer granules making machine, factors such as production capacity requirements, desired granule quality, budget, and the type of raw materials to be processed should be carefully evaluated. Additionally, it's important to consider the machine's energy consumption, maintenance requirements, and the availability of after - sales support from the manufacturer.

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