Improvement of the engine, drum and cab configuration of Guwang 80 wheat harvester in 2020. Efficient operation and high reliability: it is matched with the famous 165 HP high-pressure * * * rail engine. 920mm widens the bridge, and the feeding is smooth and efficient. Widen the grain elevator to enhance the conveying capacity. 300L fuel tank, meet the needs of one day's work. Three-axis external meshing closed edge reduction, good adaptability. Enhanced swing ring box and grain unloading gear box are more durable. Excellent performance and multi-purpose: combined threshing drum, more thorough threshing and separation. Replacing the special accessories can realize the harvest of corn seeds, millet, soybeans and other crops. High-position grain unloading or embedded grain unloading cylinder has strong adaptability. Easy operation and comfortable driving: air-conditioned cab, ergonomically optimized design, dustproof, shock absorption and noise reduction, and comfortable driving. Multifunctional single handle control, convenient and comfortable. Hydraulic main clutch, more labor-saving operation. Equipped with intelligent terminal of Internet of Things, the service is more efficient.