Hardness Tester

Tend equipment that test the hardness of baked taconite pellets.
picture of Hardness Tester

Quick Stats


Salary Range
$20,000 – $56,000

Data from U.S. Department of Labor


What do Hardness Testers do?

Tends tumble drums, screens, and balance scales to test hardness of baked taconite pellets: Reads schedule to obtain specifications, such as furnace from which pellets are to be drawn and time of withdrawal, and notifies sampling personnel to prepare sample pellets. Pours sample over screen, and weighs screened pellets on balance scale. Dumps pellets into drum, and starts drum rotating for specified number of turns. Screens tumbled pellets, and weighs them to determine weight loss from tumbling. Reads conversion chart to obtain hardness number. Records hardness number of samples tested. May clean work area, using broom, shovel, and water hose.


Should I be a Hardness Tester?

You should have a high school degree or higher and share these traits:
  • Trustworthy: You are known for your personal integrity and honesty.
  • Detail Oriented: You pay close attention to all the little details.
  • Independent: You enjoy flying solo and doing things your own way.

  • How to become a Hardness Tester

    Most Hardness Testers have no higher education and get on-the-job training. Think about earning a Certificate or Associate's degree to increase your competitiveness in the field. Chart?chd=s:9zcaaa&chl=no+college+%2869%25%29|certificate+%2828%25%29|associate%27s+%283%25%29|||&cht=p3&chs=466x180&chxr=0,69,69
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