Large Wheel Compost Turner

The large wheel compost turner (also known as a wheel-type compost turner) is a piece of large-scale equipment specifically designed for wide-span, deep fermentation channels. Compared to traditional channel-type turners, it utilizes a rotating disc mechanism that offers a wide turning span, deep penetration, and high operational efficiency.

This equipment is suitable for turning and aerating organic wastes——such as livestock and poultry manure (pig, cattle, sheep, chicken), sludge, sugar mill filter mud, spent grain/pomace, straw, and sawdust—during the fermentation process. It is widely used in facilities producing organic and compound fertilizers, sludge and waste treatment plants, horticultural nurseries, and mushroom (Agaricus bisporus) farms for fermentation, decomposition, and moisture reduction operations.

How does the large wheel compost turner operate?

The large wheel compost turner utilizes a rotating disc structure to perform the turning process through the coordinated operation of a spanning bridge, a traversing trolley, a lifting boom, a rotating disc, and a main travel mechanism.

During operation, the bridge travels along the length of the fermentation tank, while the traversing trolley adjusts the disc's position across the tank's width. A hydraulic cylinder controls the working depth of the disc, and a motor—coupled with a speed reducer—directly drives the disc to rotate at high speed. High-strength alloy cutting teeth on the disc's rim cut into the compost pile like milling cutters; they scoop up cold, anaerobic material from the bottom, toss it into the air, and simultaneously shift it backward, achieving a combined effect of oxygenation, material breakdown, and homogenization. This operational method, which applies force vertically downward, gives the equipment a strong capability to “bite through” and process materials prone to compaction—such as high-moisture cattle manure, mixtures containing sludge or filter cake, and bacterial residue—by breaking up clumps through centrifugal force and shearing action, thereby rapidly restoring the pile's porosity.

What are the application scenarios for large wheel compost turners?

The large wheel compost turner is designed for high-capacity organic solid waste fermentation. It is well-suited for export to large-scale organic fertilizer processing projects at farms in Southeast and Central Asia. The primary feedstocks and project types it accommodates are as follows:

Resource recovery from livestock and poultry manure: Large-scale fermentation of chicken, cattle, pig, and sheep manure; the preferred turning equipment for organic fertilizer plants affiliated with large-scale livestock farming groups.

Resource recovery from agricultural and forestry waste: Mixed fermentation of crop stalks, spent mushroom substrate, herbal medicine residues, sugarcane bagasse, and sawdust to produce organic fertilizer and cultivation substrates, as well as the composting of landscaping waste.

Urban organic solid waste treatment: Safe composting of municipal sludge, food waste residues, and biogas digestate, often paired with deodorization systems to meet environmental compliance standards.

Large-scale bio-fertilizer plants: Pre-treatment and fermentation processes for bio-bacterial fertilizers and organic fertilizers, ensuring proper decomposition of organic matter and stable subsequent granulation. Fermented material can be fed directly into modern organic fertilizer granulators for pellet formation, ensuring a seamless workflow.

What should you consider when purchasing a large wheel compost turner?

Many customers overlook civil engineering specifications during the selection process, leading to installation issues upon delivery. Huaqiang Heavy Industry has compiled lessons learned from past projects and identified three critical details to verify:

Prioritize fermentation channel dimensions

The channel width determines the custom span of the wheel, while the depth must not exceed the equipment's maximum turning capacity; ensure at least 50 cm of clearance on both sides for maintenance. Use national standard steel rails and embed steel plates in the concrete base to prevent rail deformation under heavy loads.

Raw material type dictates component customization

When processing high-viscosity or highly corrosive materials——such as sewage sludge or food waste—request reinforced anti-corrosion treatment for the entire machine and wider rake teeth. For materials with a high straw content, the wheel rotation speed can be increased to enhance the shredding effect.

Match production capacity with turning frequency

For an output of over 200 tons of organic fertilizer per day, turning 2–3 times daily is recommended. For large-scale projects exceeding 500 tons per day, deploying two large-wheel turners to operate in separate zones can ensure fermentation efficiency.

After-sales support

Huaqiang Heavy Industry provides on-site installation and commissioning, operational training, and direct spare parts supply. Customers benefit from a full-machine warranty and lifetime technical guidance; export orders include English manuals and plans for overseas on-site installation.

The large wheel compost turner is a core piece of heavy-duty fermentation equipment designed for modern, large-scale organic fertilizer plants and centralized manure resource utilization projects. It utilizes a wide-span, deep-turning mechanism to eliminate “dead zones” in wide fermentation channels, while its low energy consumption, fully automated operation, and rugged, wear-resistant design make it ideal for continuous, year-round production.

Whether for organic fertilizer facilities supporting domestic livestock industrial parks or for large-scale fertilizer plants built overseas, the large rotary-disc compost turner represents a cost-effective, long-term solution for operations involving wide fermentation channels and high daily material throughput.

Huaqiang Heavy Industry offers customized solutions tailored to specific client requirements——including fermentation channel dimensions, daily raw material tonnage, and material types——by adjusting equipment span, power output, and anti-corrosion specifications. We also provide integrated planning for the entire organic fertilizer production line, delivering a comprehensive, one-stop equipment package that covers everything from raw material fermentation to fertilizer granulation and drying.