A professional who tends mechanical agitator that mixes chemicals for use in separating metallic particles from ore gangue. Respnsibilities include:

• Turns valves to pour specified amounts of chemical solutions from storage tanks into mixing tank.
• Weighs chemical compounds on scales, and dumps chemicals into mixing tanks, using forklift truck.
• Starts agitator to blend mixture.
• Turns valves on pumps to transfer mixture to storage tank.
• May weigh steel rods and balls and transport them to mills, using air-powered dinkey engine.
• May open chute door of storage tank to charge ball mills.