This machine is completely controlled by compressed air, without power supply, especially used in explosion-proof environment, with high safety; due to pneumatic control and pneumatic special three-way positioning, it has high filling accuracy and is controlled within 1 %; simple and easy to operate; failure rate is low. It is suitable for medicine, daily chemical, food, pesticide and special industries. It is an ideal equipment for filling high-viscosity fluids. Since the machine works in an uncharged state, it is more secure, and the humanized design is more in line with the requirements of modern enterprises. This machine is especially effective for high-viscosity materials (such as thick sauce, chili sauce, tomato sauce, etc. with granular materials), and has high precision.