A professional who tends auxiliary equipment such as pumps, motors, and conveyors to supply materials and power to slurry tanks and other equipment to mix cement slurry for kilns. Respnsibilities include:

• Receives signal from rotary-kiln operator and starts pumps and conveyors to feed raw materials into kiln.
• Opens valves to fill slurry tanks with specified amounts of water and raw materials or to correct slurry mixture.
• Starts tank agitators that mix slurry.
• Greases and oils equipment.
• May be designated according to equipment tended as kiln feeder; mixer tender.