An inoculant wire feeder is a tool used in foundries to introduce inoculants into molten metal. By utilizing an inoculant wire feeder, precise and controlled addition of inoculants, such as ferrosilicon or ferrosilicon magnesium, can be achieved. This promotes high nodularity, leading to the formation of desirable graphite nodules in cast iron, enhancing its mechanical properties and ensuring consistent and reliable casting quality.