Turning machines can be classified by their movement method into crawler-type, wheeled-type, and rail-type; by their fermentation method into strip pile turning machines and trough-type turning machines. Crawler-type turning machines are suitable for open-air strip pile fermentation, offering free mobility and high processing capacity; trough-type turning machines are fixed above fermentation troughs and operate back-and-forth along guide rails, making them ideal for indoor or shed fermentation. Additionally, there are special structures such as chain plate-type and drum-type machines designed for specific materials.

When selecting turning and turning machines, the following aspects are typically considered:

Material Characteristics and Turning Methods: Different materials (such as cow dung, chicken manure, straw, and sludge) exhibit significant variations in moisture content, bulk density, and particle size, requiring corresponding turning methods. For instance, materials with high moisture content are more suitable for trench turning, while loose materials can be handled with windrow turning.

Site and Yield Planning: The working width and turning depth of the windrow turner directly affect processing efficiency. For projects with large sites and high yields, crawler-type windrow turners are often preferred to enhance mobility, while slot-type windrow turners are more compact for space-constrained fermentation workshops.

Equipment Maintenance and Spare Parts Supply: As windrow turners operate for extended periods in humid and corrosive environments, the protection ratings of critical components such as bearings, chains, and gearboxes, along with the ease of replacing wear-prone parts, are key factors to consider for long-term operation.

Fermentation Process Integration: As part of the fermentation system, the windrow turner must coordinate with the ventilation system, temperature monitoring, and material handling equipment. Whether the equipment manufacturer can provide comprehensive process recommendations or integrated solutions is also a key consideration in practical selection.