The National 513 Tractor Mounted Harvester Combine (2 W.D.) is a versatile and robust agricultural machine designed to be mounted on a tractor. It features a 51-inch chassis, a 3992 mm cutter bar, and an adjustable cutting height of 55-1150 mm. With a weight of 5500 kg (without the tractor) and customizable tires, it ensures stability and traction in various field conditions. The combine's 1257 mm thresher width and 606 mm diameter enable efficient grain separation, while the 48" x 83" cleaning sieve helps remove impurities from the harvested crop. Overall, the National 513 is a reliable and efficient solution for farmers looking to enhance their harvesting capabilities.