A corn harvester is an agricultural machine used for harvesting corn, efficiently removing the ears of corn from the stalk and separating the kernels from the cob. It combines several processes into one operation, including reaping, threshing, and winnowing.

A combine harvester is typically used for large-scale farming operations. It is efficient and can cover large areas quickly, combining three operations: reaping (cutting the rice stalks), threshing (separating the rice grains from the stalks), and winnowing (removing the chaff, or husks, from the grains).

A soybean harvester is a specialized agricultural machine designed to efficiently harvest soybeans by cutting the plant, separating the beans from the pods, and collecting them in a storage bin.

A sugarcane harvester is a specialized piece of agricultural machinery designed to efficiently cut and collect sugarcane stalks from the fields. It operates by slicing the cane at the base, stripping away the leaves, and then chopping the stalks into consistent lengths for processing.

A simpler grain harvester that cuts crops and then ties the stalks into bundles or sheaves. Better suited for small to medium-sized fields or areas where the terrain is not suitable for larger machinery.