탈곡기, or threshing machine, is a device used in agriculture to separate grains from their husks or stalks. It automates the process of threshing, which was traditionally done by hand, making it more efficient and less labor-intensive. These machines can vary in size and design, from small, portable models to large, industrial machines. They are essential in the harvesting of crops like 밀 (wheat), 보리 (barley), and 옥수수 (corn), helping farmers increase productivity and reduce the time needed for post-harvest processing.