Rockwell hardness tester


General information

The NEXUS 605 models are a new generation of hardness testing instruments. The testers main body is a fine casted rigid structure which incorporates a load cell, closed loop force actuator that provides continuous force feedback information.

The load application system avoids “overshoot” during the test force application and guarantees one of the best GR & R results ever seen on Rockwell/Brinell hardness testers in this class. The tester meets or exceeds the ISO, ASTM and JIS standards. (ISO 6508, ASTM E18, ASTM B254, JIS Z2245)

Test forces range from 2.5 kgf/24.5 N to 187.5 kgf/1838 N, Advanced algorithms, digital filter technology and state of the art electronics provide a very reliable and robust Rockwell hardness tester.
NEXUS stands for Next Generation.

The unique machine design allows Rockwell, Superficial Rockwell and Brinell load settings.
The NEXUS 605 RS/RSB model makes it possible to perform hardness tests in Rockwell and Superficial Rockwell scales and optionally (605RSB) can provide Brinell hardness testing.
Models RSB are supplied with a separate Brinell measuring microscope.


  • Load cell, force feedback, closed loop system
  • Excellent accuracy, best in class GR & R
  • Load range 2.5 kgf/24.5 N up to 187.5 kgf/1838 N (depending on model)
  • Fully automatic operation
  • Meets or exceeds ISO, ASTM and JIS standards
  • Shape correction settings for curved surfaces
  • Go/No Go function with color full visual and acoustic warning
  • Large memory for test results storage
  • Easy calibration function
  • Testing program storage
  • Standard workpiece clamping attachment
  • Connectivity USB-2
  • External Brinell microscope (RSB model)
  • Large workpiece accommodation