Series semi-automatic liquid filling machine with reasonable structure, compact model, high performance, quantitative accuracy & easy to operate. The power part adopts pneumatic structure components from Germany FESTO. It can be arbitrarily adjusted according to the customer's needs within the filling volume and filling speed. The filling head adopts an anti-drop and lifting filling device that uses compressed air control and drive. Therefore, it is suitable for use in explosion-proof requirements and humid environments, with high safety performance, stability, and characteristics.