In addition to being a good idea, maintaining your Rockwell hardness tester will ensure that you receive accurate results, prolong its life, and prevent potential risks to your financial stability and safety. You can ensure that your tester runs smoothly and generates accurate, dependable data by giving routine maintenance high priority. Here are some key steps to proper maintenance:

Regular Cleaning:

  • Daily cleaning: After using the tester, wipe it down with a clean, dry cloth to remove any oil, dirt, or debris that may have accumulated on the anvil, indenter, or other parts.
  • Periodic cleaning: More thorough cleaning is recommended regularly, depending on usage. Use a soft brush and a non-abrasive cleaning solution to ensure proper part movement and get rid of stubborn dirt.


  • Follow manufacturer's instructions: Each model may have different recommended lubricants and lubrication points. Consult the handbook for details on which lubricant is appropriate and how often to use it.
  • Lubricate sparingly: Use lubricant sparingly, only when it is required, to prevent attracting dust and debris.


  • Regular calibration: Arrange for the tester to be calibrated by a qualified technician regularly—ideally, once a year at the latest, though more frequently if it is used extensively. Apart from adhering to industry norms, this ensures precise measurements.
  • Use reference blocks: Make sure the tester is accurate by using reference blocks with known hardness regularly. This can be done both before and after calibration to ensure consistency.

Preventative Maintenance:

  • Inspect regularly: Look closely for any signs of wear, damage, or malfunction on the tester. Keep an eye out for any movement irregularities, loose screws, and worn-out parts.
  • Store properly: When not in use, keep the tester in a clean, dry, and dust-free environment. Avoid areas with abnormally high or low humidity.
  • Follow safety precautions: When performing maintenance tasks and handling testers, it is essential to wear protective gear like gloves and glasses.

Additional Tips:

  • Use proper test specimens: Ascertain that the test specimens meet the requirements of the chosen test scale for cleanliness, levelness, and thickness.
  • Avoid overloading: Ensure that you do not exceed the maximum load capacity of the tester. This could damage the tool and decrease accuracy.
  • Handle with care: Avoid dropping or bumping the tester as this could potentially affect its calibration and accuracy.


Following these upkeep guidelines will ensure that your Rockwell hardness tester remains accurate, durable, and operating at its best for many years to come. Remember that investing in proper maintenance can save time and money while ensuring consistency in your results.