The machine is piston filling type, the pneumatic part adopts the pneumatic components AIRTAC. Cylinder piston and the cylinder are made of the poly vinyl chloride and 304 stainless steel material, meet the GMP requirements. Filling volume and filling loading speed can be adjusted, high precision filling. Filling valve with anti-drip, anti-down drawing and filling equipment. The machine can be modified according to the requirements of customers, such as explosion-proof type, overflow filling system.