A professional who tends centrifuge separator that purifies used coolant oils from rolling mill machines. Respnsibilities include:

• Opens valves and starts pumps to transfer oil from machine pit tanks to holding tank.
• Pulls control levers to add specific amounts of sulfuric acid and water to oil.
• Opens valves to allow mixture to flow through centrifuge and back to pit tanks of machine.
• Orders supplies of oil and acid from storeroom and keeps records of solutions used.
• Delivers samples of purified oil to laboratory.
• Replaces filters in centrifuge and cleans centrifuge disks, using wire brush and rags.