This equipment is designed for 1-5 liter products, offering stability, efficiency, long service life, and ease of use. It features dual-stage filling technology: initial fast filling followed by slow filling for precise control. The system includes a pipeline conveyor, main frame, barrel clamping device, metering system, pipeline head, oil storage, and control system. The pipeline capacity adjusts from 1 to 4 liters, with zero-point tracking and automatic height correction. It supports both gross and net weight measurements, with a two-stage scale for accurate oil injection. It also includes a drip tray or vacuum suction device to prevent leakage, and it automatically handles bottle counting, measurement, and transfer, suitable for industries like curing agents, paints, inks, and chemicals.