Two-stage gear transmission, with mechanical clutch, strong and durable, pedal control discharging,different sizes bags can be loaded by changing sleeves and agitators, optional 12-13CM, 14CM, 15-16CM, 17-18CM, 19-21CM, 22-23CM, 24-25CM (optional national standard motor) Suitable for bagging of shiitake mushrooms, oyster mushrooms, fungus, enoki mushrooms, morels and other specifications, can be used with a feeding elevator and a mixer.