2026/06/01
The mainstream turning depth for conventional models on the market is 1.2–1.8 meters, smaller models are mostly 1.2–1.4 meters, standard models are 1.4–1.6 meters, and deeper models can reach 1.6–1.8 meters. This value is determined by the drum diameter, frame lifting stroke, and tooth length. The factory parameters are fixed, but minor adjustments can be made via the hydraulic system.
In actual operation, it is recommended that the effective turning depth be 10–15 centimeters lower than the rated maximum depth. If the material pile height is equal to or exceeds the rated depth, the bottom material cannot be turned, easily forming an anaerobic layer, resulting in foul odors and incomplete composting. Too low a height reduces operating efficiency and lowers site utilization. For conventional fermentation windrows, a stack height of 1.0–1.5 meters is recommended, suitable for most general-purpose machines.
Material characteristics will affect the actual operating results. High-moisture, high-viscosity manure and sludge are prone to compaction and caking; therefore, a shallow to medium depth (1.2–1.4 meters) should be used to ensure the teeth penetrate the material layer. For loose materials such as straw and mushroom residue, a depth of 1.5 meters or more can be used to improve site utilization.
Regularly check the wear of the teeth during daily use. Shortened teeth will directly reduce the actual turning depth. Repair or replace worn teeth promptly. Maintain stable machine movement and prevent tilting to avoid insufficient turning depth on one side. Adjust the stack height according to the turning frequency; a reasonable depth ensures simultaneous heating and uniform maturation of the entire stack, shortening the fermentation cycle.
