2026/11/05
The critical distinction between the bio-organic fertilizer production and conventional organic fertilizer lies in the inoculation stage—the survival of the introduced live microbes determines the viability of the final product. While the fermentation phase might appear to be nothing more than "turning the material over," it actually sets the stage for whether these microbes can survive. The twin-screw compost turner acts as a "gentle powerhouse"—thoroughly completing the task without causing any adverse side effects.
Fermentation for bio-organic fertilizer faces two major risks: localized anaerobic conditions and excessive pulverization. Anaerobic pockets foster the growth of unwanted microorganisms and produce foul odors, creating a competitive disadvantage for the beneficial microbes intended for later inoculation. Conversely, excessive pulverization results in a material that is too dense, reducing the pile's permeability and hindering aerobic fermentation. The double screws compost turning machine features two counter-rotating screw shafts that lift and break up material from the bottom, casting it to the sides while simultaneously drawing surface material toward the base, creating a comprehensive, three-dimensional exchange. This forceful turning and tossing action is highly effective at kneading and breaking down high-moisture, sticky manure and long-fiber straw; it shatters clumps and cuts fibers, all while ensuring the compost pile remains loose and well-aerated.
Crucially, it achieves deep and uniform turning. Material at the bottom of a fermentation trench often suffers from the most severe oxygen deprivation; the twin-screw design reaches deep into the base, bringing material from these "dead zones" to the surface. This allows oxygen to permeate the entire pile, enabling the temperature to rise steadily to 55°C–65°C—a range that effectively eliminates pathogens and weed seeds. This ensures consistent maturity throughout the mass, preventing a scenario where the surface is fully composted while the bottom remains raw. A more uniform environment across the material facilitates better colonization by the functional microbes introduced during the subsequent inoculation stage.
In terms of process integration, the double screws compost turning machine is ideally suited for the fermentation phase and can be flexibly paired with either trench-based or windrow-based composting systems. Its adjustable turning depth accommodates varying material layer thicknesses. Furthermore, the turning process leaves the material loose and ensures uniform moisture content, providing an optimal foundation for subsequent semi-wet pulverization and low-temperature granulation. While it does not come into direct contact with the functional microorganisms, it ensures a stable and uniform fermentation process, thereby creating a more favorable "living environment" for these live microbes. Choosing the right compost turning machine serves as the primary safeguard for the "vitality" of bio-organic fertilizer.
