The actual production capacity of an organic fertilizer disc granulator machine is not a fixed figure; the state of raw materials, equipment parameters, and operating conditions directly constrain discharge speed and pelletizing efficiency. These influencing factors fall into five main categories.

The first factor is the state of the raw material powder, which is central to determining the fertilizer production machine's output. When the powder is of moderate fineness and free of large clumps, fine particles easily agglomerate into pellets, resulting in higher output. Conversely, if the powder contains significant coarse fiber or hard lumps that have not been refined by a semi-wet pulverizer, the rolling and forming process becomes much more difficult, leading to increased material recirculation and reduced effective output. Material moisture content is particularly critical: if moisture is too low, the material fails to bind, making it difficult for seed pellets to grow; if moisture is too high, large mud clumps form and stick to the disc surface, increasing the load on the cleaning scraper and interrupting continuous discharge. Optimal output is achieved when the moisture content for standard granulation is controlled within the 25%–35% range.

The second factor involves the adjustable parameters of the disc equipment. If the disc inclination angle is too small, material retention time becomes excessive, slowing down discharge; if the angle is too large, the material lacks time to coat and form pellets, causing fine particles to spill over directly and leading to a surge in recirculated material. If the disc rotation speed is too low, centrifugal force is insufficient, resulting in poor material rolling activity; if the speed is too high, material is flung toward the disc edge, preventing cyclic agglomeration. Maximizing capacity requires a proper balance between the inclination angle and rotation speed. The atomization effect of the spray system is equally important; coarse water droplets can cause localized pooling and clumping, whereas fine, dense atomization ensures stable, continuous granulation and increases the discharge rate per unit of time.

The third factor concerns the operating condition of the cleaning scraper. Scraper wear or an excessive gap between the scraper and the disc surface leads to uneven material buildup, disrupting rolling trajectories and reducing pelletizing stability; this results in frequent size irregularities and lower effective output. Regularly adjusting or replacing wear-resistant scrapers to keep the disc surface clean and smooth helps stabilize the granulation speed.

The fourth factor is the uniformity of the material feed. Irregular feeding—whether interrupted or fluctuating in volume—disrupts the balance of the material layer within the pan; conversely, continuous, steady feeding maintains a stable circulation of seed pellets and significantly reduces wasteful material recirculation. Pre-processing the feed with a twin-shaft mixer ensures uniformity in moisture content and particle size, thereby boosting production capacity.

The fifth factor is the integration of downstream screening equipment. Inefficient screening causes excessive amounts of substandard fines and oversized particles to recirculate into the pelletizing pan, increasing the equipment load and allowing recirculated material to displace effective production capacity; timely screening and diversion of substandard material unlock the disc's true production potential.