A roulette type stacker usually consists of one or more horizontally rotating "disks" or "wheels" equipped with multiple blades that form the flipping components. When the machine moves forward, these rotating wheels "gnaw" and throw up materials, achieving flipping. It is commonly referred to as a "milling disc" or "rotating wheel" stacker.

　　1、 Main advantages and characteristics

　　Unique flipping principle, good mixing effect

　　Milling type flipping: The rotating disc "cuts" materials like a milling cutter, with strong ability to break and disperse materials, especially suitable for handling materials that are prone to clumping, have many fibers, and have high viscosity (such as straw, mushroom residue, and garden waste).

　　Evenly scattered: The material is picked up by the wheel blade and scattered backwards and upwards, forming a uniform parabolic shape, allowing the new and old materials, as well as the inner and outer layer materials, to be fully mixed and exchanged.

　　Strong adaptability to pile shape

　　Very suitable for processing wide and trapezoidal cross-section strip pile compost. Its working width can be flexibly adjusted by increasing or decreasing the number of wheels (commonly 3-8 meters or wider).

　　For situations where the shape of the pile is irregular or the pile height is large, it can also be effectively operated.

　　2、 Limitations or characteristics that need to be considered

　　The distance of material scattering is limited, and the requirements for pile shape control are high

　　The throwing distance is not as far as some powerful drum type flipping machines, and after flipping, the stack needs to be reshaped (sometimes accompanied by a fabric machine or stacking machine).

　　The width and height of the stack should match the working width of the machine, otherwise the edge effect will be poor.

　　The challenge of handling high viscosity and flowable materials

　　Although it can handle viscous materials, if the material is too wet or sticky (such as pure sludge), it is easy to adhere to the wheel and frame and needs to be cleaned frequently.

　　Greatly affected by weather conditions

　　Outdoor work is severely affected by rainy and snowy weather. Working during the rainy season is difficult and may cause the site to become muddy.

　　Large footprint, weak environmental control

　　Strip composting requires large open spaces.

　　It is difficult to achieve precise temperature and odor control, and areas with high environmental requirements may require covering with film or working in greenhouses.

　　Relative processing capability (compared to slot type)

　　Although the single processing capacity is large, the fermentation cycle is usually longer than the forced ventilation trough process, and the processing efficiency per unit land area may be lower.

　　3、 Main application scenarios

　　Farm and Livestock Farm: Processing mixed materials of livestock and poultry manure and straw to achieve on-site resource utilization of manure.

　　Landscaping and municipal departments: handling garden waste such as tree branches, fallen leaves, lawn mowing, etc.

　　Straw Recycling Center: Processing straw from crops such as rice, wheat, and corn.

　　Small and medium-sized organic fertilizer plants that are sensitive to infrastructure investment.

　　Core comparison with track type (groove type) stacker

The wheel type compost turning machine is the core equipment of the strip pile composting process, characterized by flexibility, economy, and good crushing effect on fiber materials. It is very suitable for projects with vast sites, limited investment budgets, and materials mainly consisting of agricultural waste. It is a classic choice for achieving the harmless and resourceful treatment of medium and small-scale organic waste. But in scenarios with strict environmental requirements, the need to handle highly polluting materials (such as sludge), or the pursuit of highly industrialized continuous production, the trough crawler stacker has more advantages. The key to selection lies in determining the process route (stack vs. groove).