1. Very convenient ,small ,easy to operate. 2.Don't break ... 20 kg 3, threshing drum rotational speed (1400 RPM).performance index: 1, 400-500 kg/productivity hours; 2, clean rate > 98% 3 ... , broken rate < 0.1%.Configuration: 1, 0.75 kw motor speed 2800 RPM;Motor belts for ...