Wilson Hardness Legacy Testers

The Wilson® hardness brand of hardness testers was originally known as the Wilson Mechanical Instrument Company. Here Stanley Rockwell and founder Charles H. Wilson introduced the Rockwell hardness tester, an industry standard. Later, Wilson became the home of the legendary Tukon line of micro-indentation testers – renowned for Knoop and Vickers testing. These early inventions revolutionized industry and paved the way for Wilson today, with innovations that improve usability and allow for full connectivity and automation like the DiaMet software. Click the link to see if your legacy Wilson hardness tester can be updated with DiaMet software.

Rockwell 4JR (+/- 1945 - 1960)

Wilson Rockwell 4JR Legacy Hardness Tester
  • Analog Rockwell Hardness Tester
  • Scales: HRA, HRB, HRC, etc
  • Rockwell: 60, 100 and 150 kgf
  • Today’s Tester: Rockwell™ 574 & 2150

Rockwell 504R (+/- 1960 - 2000)

Wilson Rockwell 504R Hardness Legacy Tester
  • Analog Rockwell Hardness Tester
  • Regular Scales: HRA, HRB, HRC
  • Superficial Scales: HR15N, HR30T
  • Rockwell: 10, 30, 45, 60, 100 and 150 kgf
  • Today’s Tester: Rockwell™ 574 & 2150

Rockwell 524T (+/- 1970 - 2005)

Wilson Rockwell 524T
  • Digital read-out Rockwell Hardness Tester
  • Regular Scales: HRA, HRB, HRC, etc
  • Superficial Scales: HR15N, HR30T, etc
  • Rockwell: 10, 30, 45, 60, 100 and 150 kgf
  • Today’s Tester: Rockwell™ 574 & 2150
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