A professional who tends pug mill that mixes preheated magnesia and carbon with hot asphalt to form viscous mixture for use in making pellets. Respnsibilities include:

• Moves lever to open slide gate at outlet of heating chamber to permit heated mixture of magnesia and carbon to flow into pug mill.
• Opens and regulates valves to control flow of hot asphalt into mill.
• Opens valves to feed mixture into hoppers of briquetting machine.