The large wheel compost turner is a piece of turning equipment specifically designed for wide-span, deep-trench composting systems. It is primarily used for the aerobic composting and turning of organic wastes such as livestock and poultry manure, sludge, sugar mill filter mud, spent grain and oilseed cake residues, straw, and sawdust. Compared to traditional trench-type turners, it offers significant improvements in space utilization, turning coverage, and operating depth.

How does the large wheel compost turner work?

The working principle of the large wheel compost turner can be summarized as “vertical cutting, high-speed rotary cutting, and a three-in-one process.”

The equipment utilizes a central chain drive mechanism to power two large-diameter turning wheels arranged symmetrically. During operation, the gantry travels along the length of the fermentation channel, while a traversing carriage adjusts the wheels' lateral position across the channel width; hydraulic cylinders control the vertical depth of the wheels, and motors——via gear reducers——irectly drive the wheels to rotate at high speed. Alloy cutting teeth on the wheel rims cut vertically into the compost pile like milling cutters, scooping up cold, anaerobic material from the bottom, tossing it into the air, and simultaneously pushing it backward.

Three processes in a single pass: This operation simultaneously performs three functions——oxygenation (material makes full contact with air while being tossed), pulverization (clumped material is broken apart by centrifugal force and shearing action), and mixing (thorough blending of upper and lower material layers). It effectively breaks up compacted material, rapidly replenishes oxygen and exhausts waste gases, and eliminates issues such as foul odors and mold growth associated with anaerobic fermentation.

What materials are suitable for the large wheel compost turner?

The large wheel compost turner is suitable for turning and aerating various types of organic waste during the composting process, including:

Livestock and poultry manure: chicken, cattle, sheep, and pig manure, etc.

Municipal sludge: sewage sludge, sugar mill filter mud

Agricultural and forestry waste: crop stalks, sawdust, spent mushroom substrate, distillers' grains, herbal medicine residues

Others: pomace and oilseed cakes, garden waste, etc.

What are the application scenarios for large wheel compost turners?

Large wheel compost turners are primarily used in facilities such as organic fertilizer plants, compound fertilizer plants, sludge and waste treatment plants, horticultural farms, and Agaricus bisporus (button mushroom) cultivation facilities.

In practical projects, these turners are particularly well-suited for the following situations:

Large-scale organic fertilizer production lines: Projects with a daily processing capacity exceeding 500 tons that require rapid temperature rise and a shortened fermentation cycle.

High-moisture materials prone to compaction: Materials such as cattle manure, mixtures containing sludge or filter cake, and spent fermentation residues; the rotary disc's ability to "break through hard material"effectively disperses clumps.

Indoor enclosed greenhouses: Bridge-mounted rotary-disc turners eliminate issues regarding tire pressure on the ground and the risk of vehicles sinking into soft foundations, making them ideal for use with odor-control enclosures.

Retrofitting existing workshops: They can be installed directly onto existing fermentation channels without requiring the bottom-channel drive space needed by twin-screw turners.

What auxiliary equipment is required for a large wheel compost turner?

A large wheel compost turner cannot handle the entire organic fertilizer production process on its own; a complete fermentation line requires supporting upstream and downstream equipment.

Organic Fertilizer Production Line

Manure/waste feedstock ——Crusher —— Fermentation tank + Large wheel compost turner ——Automatic batching system —— Mixer —— Granulator —— Organic fertilizer dryer——Cooler ——Screener —— Packaging machine. This complete production line automates the entire process of transforming livestock and poultry manure into finished organic fertilizer, making it suitable for commercial organic fertilizer manufacturing plants.

In the fields of organic fertilizer production and agricultural waste treatment, the quality of the compost-turning equipment directly impacts fermentation efficiency and the quality of the final product. Large wheel compost turners (also known as large wheel compost turning machines) have rapidly gained popularity in recent years; thanks to their massive processing capacity and high-efficiency turning capabilities, they are becoming the"core equipment" for large-scale organic fertilizer projects. However, prior to purchase, it is essential to provide the manufacturer with fermentation tank blueprints so that engineers can conduct a one-on-one assessment of the span, power requirements, and auxiliary equipment list, thereby preventing any mismatch between the machinery and the facility's civil infrastructure. If you are unsure whether your fermentation tanks are best suited for a large wheel compost turner or another model, you can consult online to receive a free proposal.