The disc granulator is a mainstream wet granulation device in the fertilizer processing industry. Thanks to its simple structure, ease of operation, high pelletization rate, and ability to produce round, uniform granules, it is compatible with the vast majority of small- and medium-sized fertilizer production lines. It accommodates a wide range of raw materials and offers high production flexibility, serving as the core shaping equipment for organic, compound, and functional fertilizer production lines across various agricultural fertilizer processing scenarios.
First, it is a specialized core component of organic fertilizer production lines, suitable for processing various types of biomass-based organic fertilizers. It can granulate fermented organic powders—such as livestock manure, crop straw, sawdust, and food waste—making it an ideal fit for small- and medium-sized commercial organic fertilizer lines. The equipment handles organic materials with moisture content between 15% and 25% and features an automatic anti-sticking scraper to effectively prevent material buildup on the disc walls. It achieves a pelletization rate of over 90%, producing high-quality, durable granules that resist crumbling and meet commercial market standards.
Second, the equipment is suitable for NPK compound fertilizer production lines and is a preferred choice for small- and medium-sized fertilizer plants. It efficiently agglomerates inorganic materials—such as nitrogen, phosphorus, and potassium (NPK) raw materials, mineral powders, and trace element powders—into uniform granules. Compared to rotary drum granulators, disc granulators are easier to adjust and offer greater flexibility in formula switching; they allow for rapid transitions between different fertilizer ratios (such as high-nitrogen or high-phosphorus formulations), meeting the need for flexible production across diverse compound fertilizer categories.
At the same time, the disc granulator is highly compatible with bio-organic fertilizer production lines, serving as a key shaping device in bio-fertilizer processing. Bio-organic fertilizers, which combine a decomposed organic base with beneficial active microbial strains, place strict demands on granulation technology. The disc granulator’s low-temperature wet granulation process aligns perfectly with bio-fertilizer production standards; it avoids the high temperatures that could damage beneficial bacteria—such as Bacillus subtilis and Bacillus licheniformis—thereby maximizing the retention of the fertilizer’s biological activity. This equipment is compatible with a wide range of bio-organic fertilizer raw materials—such as fermented livestock manure, plant humus, and organic microbial powders—delivers rapid granulation, and produces uniform, compact granules, effectively preventing issues like crumbling or dusting.
In summary, the disc granulator machine is compatible with virtually all mainstream powdered fertilizer granulation lines, offering exceptional versatility and cost-effectiveness. It is suitable for small-to-medium-scale production lines with annual capacities of 10,000 to 30,000 tons, catering to both small-scale home processing and industrial mass production, making it a highly adaptable forming machine for the fertilizer processing industry.