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NOC 2021 Version 1.0


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94100 – Machine operators, mineral and metal processing

Machine operators in mineral and metal processing operate machinery to process mineral ore and metal. They are employed in mineral ore and metal processing plants such as copper, lead and zinc refineries, uranium processing plants, steel mills, aluminum plants, precious metal refineries and cement processing plants.


Example titles

  • Aluminum classifier
  • Asbestos dryer
  • Billet heater
  • Brick and tile crusher operator
  • Cement miller
  • Extrusion press operator
  • Foil-winding machine operator
  • Ladle pourer
  • Lead refiner
  • Lime kiln operator
  • Mica sheet laminator
  • Quenching car operator
  • Scrap metal shredder
  • Sintering machine operator
  • Slurry equipment operator
  • Steel roller
  • Uranium classifier operator
  • Zinc cell operator

Main duties

This group performs some or all of the following duties:
  • Set up, prepare and adjust mineral ore, metal and cement processing machinery to carry out one step in the overall mineral ore or metal processing operation
  • Operate single-function machinery to grind, separate, filter, mix, treat, cast, roll, refine or otherwise process mineral ores
  • Observe gauges, meters, computer printouts, video monitors and products to ensure correct operation of machinery and verify processing conditions
  • Make adjustments to machinery as required
  • Record production information and complete reports
  • May assist with machinery maintenance or repair.

Employment requirements

  • Completion of secondary school is usually required.
  • On-the-job training is provided.
  • Experience as a labourer in mineral and metal processing is usually required for machine operators.

Additional information

  • There is little mobility among the various types of machine operators within the mineral and metal processing industry.
  • With experience, machine operators may progress to central control and process operators in mineral and metal processing.


  • Central control and process operators, mineral and metal processing (93100)
  • Concrete, clay and stone forming operators (94103)
  • Foundry workers (94101)
  • Glass forming and finishing machine operators and glass cutters (94102)
  • Inspectors and testers, mineral and metal processing (94104)
  • Labourers in mineral and metal processing (95100)
  • Supervisors, mineral and metal processing (92010)

Breakdown summary

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