Introduction: Mainly aimed at soybean breeding science experiment and development of new full-fed soybean thresher. It uses long and long dual drum design, rubbing threshing, tooth bar separation; other models with high production efficiency, good cleaning effect, broken Low rate and so on. Double air blower air blower; double decontamination vibration screen design; can fully meet the agronomic requirements of soybean production. While its internal smoothing process; external open design; easy to clean machine. Anti-hybrid. Easy to operate. Safe and reliable. Widely used in colleges and universities. Agricultural units. Performance: Productivity: 300 Kg / h Broken rate: ≤ 1.5% Loss rate: ≤ 2% Clearance time: ≤ 3 points Residue: 0