The weighing semi-automatic filling machine uses the weight method for measurement, and its working principle is to control the opening and closing of the feeding valve through the signal output by the weighing sensor, thereby achieving automatic filling. The material is transported to the filling machine through a feed pump located in front of the feed inlet or a pressurized raw material storage tank. To ensure product quality, a filtering device can be installed before filling to remove impurities. This equipment is particularly suitable for fields such as coatings, inks, paints, asphalt, adhesives, lubricants, as well as petrochemicals and fine chemicals, not only for fluid products but also for paste products