Occupation: Crushing, Grinding, and Polishing Machine Setters, Operators, and Tenders

Crushing, Grinding, and Polishing Machine Setters, Operators, and Tenders

Set up, operate, or tend machines to crush, grind, or polish materials, such as coal, glass, grain, stone, food, or rubber.

51-9021.00 | 21 tasks | 10 job titles
Reported Job Titles (10)
  • Beveler Operator
  • Cullet Trucker
  • Grinder
  • Grinder Operator
  • Machine Operator
  • Machine Tender
  • Miller
  • Polisher
  • Preparation Operator (Prep Operator)
  • Pulverizer
Core Tasks (13)
  • Observe operation of equipment to ensure continuity of flow, safety, and efficient operation, and to detect malfunctions.
  • Clean, adjust, and maintain equipment, using hand tools.
  • Tend accessory equipment, such as pumps and conveyors, to move materials or ingredients through production processes.
  • Move controls to start, stop, or adjust machinery and equipment that crushes, grinds, polishes, or blends materials.
  • Notify supervisors of needed repairs.
  • Weigh or measure materials, ingredients, or products at specified intervals to ensure conformance to requirements.
  • Record data from operations, testing, and production on specified forms.
  • Reject defective products and readjust equipment to eliminate problems.
  • Inspect chains, belts, or scrolls for signs of wear.
  • Clean work areas.
  • Examine materials, ingredients, or products, visually or with hands, to ensure conformance to established standards.
  • Read work orders to determine production specifications and information.
  • Dislodge and clear jammed materials or other items from machinery and equipment, using hand tools.
Supplemental Tasks (8)
  • Test samples of materials or products to ensure compliance with specifications, using test equipment.
  • Mark bins as to types of mixtures stored.
  • Transfer materials, supplies, and products between work areas, using moving equipment and hand tools.
  • Add or mix chemicals and ingredients for processing, using hand tools or other devices.
  • Collect samples of materials or products for laboratory testing.
  • Load materials into machinery and equipment, using hand tools.
  • Turn valves to regulate the moisture contents of materials.
  • Set mill gauges to specified fineness of grind.