Large Wheel Compost Turner: The Intelligent Engine for Large-Scale Composting

With the intensification of global agriculture and accelerated urbanization, the generation of organic waste such as livestock manure, crop straw, and municipal sludge has increased dramatically. Traditional composting methods have limited processing capacity, high labor intensity, and long fermentation cycles, making it difficult to meet the demand for handling tens of thousands of tons or more. The large wheel compost turner emerged in response. Acting like a “giant mixer” on an organic fertilizer production line, it has become a core piece of equipment in modern large-scale organic fertilizer production due to its powerful processing capacity and efficient fermentation performance, transforming agricultural and urban organic waste into valuable soil amendments. I. Equipment Unveiled: How Does the Giant Wheel Work? The core of a large wheel compost turner is a giant rotating wheel with a diameter of 5-10 meters. This seemingly simple design embodies ingenious engineering wisdom. Dozens of wear-resistant alloy steel turning teeth are installed on the wheel’s edge. When the wheel rotates at 10-20 rpm, these teeth act like giant “fingers,” grabbing and lifting material from the bottom of the windrow, then throwing it into the air under centrifugal force, allowing it to fully scatter and mix. The entire machine is supported by a sturdy steel frame and moves slowly over the fermentation site (at about 0.2-1 m/min) via tracks or large-diameter tires. This movement allows the equipment to cover windrows up to a hundred meters long. The power system is typically driven by a high-power diesel engine or electric motor, ensuring sufficient force to agitate hundreds of tons of material. Advanced models are equipped with intelligent control systems that can monitor material temperature and humidity in real time and automatically adjust turning frequency and water spraying for humidification.

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