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AT130 Hardness Tester with N stand showing a test sample clamped and redy for testing

One of the Top Lines of Hardness Testers
in the World over the Last 30 Years

These testers have been sold by the thousands in North America and the tens
of thousands worldwide.
  • Four models of standard Rockwell bench testers
  • Two Brinell units: one Automatic depth Brinell tester and one light load automatic Brinell
  • Three models of portable Rockwell testers and one portable Brinell tester
  • Many custom or unique types of hardness testing systems for Rockwell, Brinell, and Micro/
    Case Depth Testers

An automatic Rockwell Tester used in an inline applications EBrio Brinell Scope and tablet AT250 Electronics canada/usa reps. Map courtesy of GNU
Automatic Rockwell Tester
Due to the unique qualities of these testers there are more being used in automatic applications than other types.
News & Announcements
New Brinell Scope for automatic digital Brinell results without operator influence.
Technical/Reference Info
ASTM Standards for hardness testing, Operation Manuals, Test methodology, etc.
Service/Sales Members
Find a location near you for hardness tester calibration, service and repairs, or sales.

AT130 Rockwell Tester

The iconic AT130 is shown clamping a truck spindle in the picture above. The clamping feature is only one of many unique aspects to the AT Series testers that can improve your speed and accuracy as well as reduce your testing costs in other ways.

The hardness tester in today's market costs more each year to operate, to calibrate, to supply and service.  A lot of this expense is due to ASTM which has made multiple changes to tighten the standards in the last decade, mainly ASTM-E18 for Rockwell, and E-10 for Brinell.  In addition all companies are being required to deal with ISO certifications which cover these standards to verify procedures for operation and maintenance of calibration.  These changes have had a ripple effect through industry as the hardness tester manufacturers, calibration component manufacturers (test blocks and indenters) spend more to comply with more stringent demands for certifying their own processes and the testers.

The sum result is that using a hardness tester, a process that was once performed frequently due to its relative ease and low cost, has become more expensive and time consuming. The answer to this problem is to buy better equipment.  A single hardness tester that can maintain calibration, that can test in more ways with more accuracy is a great answer.


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