The compost turner is a special equipment for producing biological organic fertilizer, while the composting machine is a mechanical equipment developed and produced based on dynamic composting. The purpose of both is to turn over the fermenting materials to avoid the surface materials not being fermented completely, while the bottom materials have been thoroughly fermented and decomposed, so as to achieve simultaneous fermentation and decomposition of the materials. Both compost turners and composting machines are fermentation organic fertilizer equipment used in organic fertilizer production. Not only are they both equipment used in organic fertilizer fermentation, but they are also very similar in appearance design. The most obvious difference in appearance is the small accessories below. The small parts below the composting machine are long metal similar to sickles, while the small parts below the composting machine of professional organic fertilizer equipment are similar to small shovels, spoons and the like. This is the biggest difference in appearance.

The compost turning machine is a roller knife compost turning machine suitable for viscous materials and is specially used to produce organic fertilizer. It mainly handles engineering operations such as sludge, livestock and poultry manure, and drug residues. This compost turning machine replaces manual spraying of bacterial agents and can be configured according to user requirements. There are also compost turning machines with automatic spraying of solid and liquid bacteria. Finally, there are compost turning machines with straw crushing function. This machine can turn the compost and cut the straw at the same time. Straw bundles and roots do not need to be crushed in advance and can be used for composting.

Compost turning machines can be divided into strip-type compost turning machines and trough-type compost turning machines. Mechanical equipment that can effectively improve oxygen supply and material shape in fermentation composting during use. It is mostly used for agricultural poultry and livestock manure composting and small-scale municipal sludge treatment projects. Its product classification is that the strip-type compost turning machine is a composting equipment used for strip-type composting, while the trough-type compost turning machine is a composting equipment used for trough composting.