2026/06/04
Assuming a standard cement fermentation tank and a sealed fermentation workshop are in place, a double screws compost turning machine is the preferred choice. It is ideal for raw materials such as chicken manure, pig manure, and municipal sludge, when mixed with straw, mushroom residue, and sawdust. The double-helix forward and reverse rotation provides strong crushing and agglomeration capabilities, ensuring even material turning without dead corners, effectively preventing anaerobic odor and incomplete composting.
For plants with limited space that want to increase composting capacity, this machine is the preferred choice. The turning depth can reach 1.6–1.8 meters, allowing for deeper expansion of the fermentation tank. It holds more material than large wheel compost turning machines within the same footprint, resulting in higher land utilization. It is also suitable for shortening the fermentation cycle and producing high-quality bio-organic fertilizer and horticultural organic fertilizer. The material is finely broken up, with sufficient aeration, leading to faster composting. With appropriate deodorization equipment, it is easier to meet environmental protection requirements.
This equipment is prioritized for large-scale processing plants planning automated production and reduced labor costs. It features electrically controlled automatic reciprocating movement, and with the addition of a transfer cart, one machine can rotate multiple fermentation tanks. One person can oversee the entire fermentation process. It is also suitable for long-term continuous production and those seeking to control maintenance costs. The spiral blades are made of wear-resistant high-manganese steel, ensuring high durability with proper maintenance, and the overall operating energy consumption is low.
However, it is not recommended for open-air windrow composting where investment in civil engineering for trenching is undesirable, or where the proportion of excessively long straw is too high and easily entangles the spiral blades. Tracked or wheeled compost turners offer better cost-effectiveness in these cases.
