1. Granulators Specialized for Organic Fertilizers

Designed for organic raw materials with high humidity (25%-40%) and strong viscosity, there are two common types:

• Disc Granulator: It has a simple structure and a low price (10,000-50,000 yuan). The granules produced are round, but its output is small (0.5-3 tons per hour), making it suitable for small and medium-sized organic fertilizer plants.
• Extrusion Granulator (Flat Die / Ring Die): It does not require drying, and the produced granules have high hardness and low energy consumption. However, the die needs to be replaced regularly, so it is suitable for scenarios where high granule hardness is required.

2. Granulators Specialized for Compound Fertilizers

Adapted to the needs of inorganic raw materials with high hardness and temperature control requirements, there are two mainstream types:

• Rotary Drum Granulator: It has a high output (5-30 tons per hour) and produces uniform granules, making it suitable for large-scale compound fertilizer production. However, it needs to be equipped with drying equipment and has slightly higher energy consumption.
• Double-Roll Extrusion Granulator: It does not require the addition of binders or drying, featuring a simple process and energy efficiency. It is suitable for dry raw materials or heat-sensitive raw materials (such as compound fertilizers with high urea content), but the shape of the granules is slightly irregular.