The semi-automatic two-head weighing filling machine is a device used for precise liquid filling. It operates with two filling heads working synchronously, each equipped with an independent weighing sensor to ensure accurate filling amounts. The design principle is based on gravity and a weighing control system; liquid flows from the reservoir through the filling heads into the containers, and filling stops automatically when the preset weight is reached. This design enhances filling accuracy and reduces the risk of overfilling. The semi-automatic two-head weighing filling machine is widely used in industries such as food, chemicals, and personal care, suitable for filling liquids of various viscosities, such as oils, chemical reagents, and detergents.