Draw smelted metal samples from furnaces or kettles for analysis, and calculate types and amounts of materials needed to ensure that materials meet specifications.
Drain, transfer, or remove molten metal from furnaces, and place it into molds, using hoists, pumps, or ladles.
Record production data, and maintain production logs.
Operate controls to move or discharge metal workpieces from furnaces.
Weigh materials to be charged into furnaces, using scales.
Regulate supplies of fuel and air, or control flow of electric current and water coolant to heat furnaces and adjust temperatures.
Inspect furnaces and equipment to locate defects and wear.
Observe air and temperature gauges or metal color and fluidity, and turn fuel valves or adjust controls to maintain required temperatures.
Observe operations inside furnaces, using television screens, to ensure that problems do not occur.
Remove impurities from the surface of molten metal, using strainers.