A professional who tends machine that grinds and mixes silica and fire clay into slurry for spraying inner surfaces of furnaces. Respnsibilities include:

• Pulls lever on storage hopper chute to fill mobile equipment box with silica, transports load to mixing unit, releases end gate, and dumps silica into ball mill and mixer.
• Turns valve to saturate material with water.
• Starts agitators and shovels fire clay into mixer to mix slurry to specified consistency.
• Opens valve to drain slurry from mixer into storage tank.