The semiautomatic infusion system is ideal for filling chemical and similar products, in 220 liter or 60 liter drums on pallets, or in 1000 liter tanks. The plant is equipped with a nozzle-carrying arm, adjustable in height with three axes of mobility that allows the filling of the previously palletized drums and drums, or of the small tanks. A weighing platform, with a load cell system, controls the weight during the filling of each container. On request, the machine can be equipped with a suction system for fumes or vapors.