2025/12/19
There is no absolute superiority or inferiority between organic fertilizer granulator machine and double roller press granualtors. The key is to choose the appropriate equipment based on the characteristics of the raw materials and the desired product. The two types of granulators differ significantly in terms of applicable scenarios, granule quality, and cost investment.
Organic fertilizer disc granulators are more suitable for processing organic materials with a moisture content of 25%-35%. High-moisture raw materials such as livestock and poultry manure and fermented straw can be directly granulated without additional drying, significantly reducing energy consumption and costs in the initial drying process. This equipment has a simple structure, low overall investment and daily maintenance costs, and a low operating threshold, making it very suitable for small and medium-sized organic fertilizer plants or start-up companies. The finished granules are irregularly spherical with medium strength, meeting the market demand for ordinary organic fertilizers. However, the granule uniformity is poor, and the output is relatively limited, making it difficult to meet high-standard, high-volume production requirements.
Organic fertilizer extrusion granulators, on the other hand, are designed for large-scale, high-end production. The raw material moisture content needs to be controlled at 10%-20%. Even without adding binders, organic materials or organic-inorganic compound materials can be pressed into shape. The granules produced by this equipment are cylindrical, with high strength and good uniformity, meeting the production standards of high-end fertilizers such as compound fertilizers and slow-release fertilizers. The granulation efficiency far exceeds that of disc granulators. However, this equipment also has obvious drawbacks: high overall investment and operating energy consumption, and strict requirements for controlling the moisture content of raw materials. If the raw materials are too dry, it can lead to difficulties in molding and easily broken granules; if the raw materials are too wet, it can cause equipment blockage and affect production continuity.
