Combine Harvester 

A Combine Harvester is an advanced agricultural machine used for harvesting crops such as wheat, rice, and maize. It is called a combine because it combines three major farming processes in a single machine. These processes include cutting the crop, threshing the grain, and cleaning it. The machine cuts the crop from the field and then separates the grain from the straw while collecting the grain in a tank. This helps farmers save time, reduce labour requirements, and improve harvesting efficiency.

Thresher

A Thresher is a post-harvest agricultural implement used to separate grains from harvested crops such as wheat, rice, maize, and pulses. Unlike a combine harvester, a thresher performs only one function, which is grain separation. Farmers first harvest the crop manually or with another machine and then feed it into the thresher. The machine beats the crop to separate grains from straw and husk, and also cleans the grains using airflow. Threshers are commonly operated using tractors and are suitable for small and medium farms. The machine saves time, reduces manual labour, and improves grain quality compared to traditional threshing methods.

Difference between Rice Transplanter vs Seed Drill

In simple terms, a combine harvester performs harvesting and threshing together, while a thresher only separates grain from already harvested crops. Both machines help farmers increase productivity and reduce labour in modern agriculture.