Rotary tillers are primarily used for land cultivation, loosening and breaking up soil while removing weeds through rotating blades, thereby creating optimal soil conditions for sowing and transplanting crops. They are commonly employed in dry fields, vegetable plots, and for land preparation prior to planting crops such as wheat and corn.

Rice transplanters are used in rice cultivation to efficiently and uniformly plant seedlings from seedling trays into paddy fields, ensuring even spacing between plants. This saves labor, improves the uniformity of rice growth, and increases yield. They are widely used in rice-growing regions.

Combine harvesters integrate multiple processes such as harvesting, threshing, and cleaning into one unit, enabling rapid harvesting of grains like wheat, rice, and soybeans. This significantly boosts harvesting efficiency while minimizing grain loss. They are commonly used for large-scale grain crop harvesting.