A professional who tends equipment that mills and sifts milk powders. Respnsibilities include:

• Fastens specified screen in sifter, using handtools, and starts hammer mill, vibrating sifter, and tank agitator.
• Starts conveyor that transfers coarse, dried powder from sifter to hammer mill.
• Turns crank to move motor belt and alter speed of hammer mill to obtain specified consistency.
• Starts pneumatic vacuum blower to convey ground powder through sifter to storage tank.
• Fills bags or barrels with powder.