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Series 640 - Digital Twin Rockwell Hardness Tester

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Series 640 - Digital Twin Rockwell Hardness Tester Testers & Optical Equipment  Measuring Tool

Digital Twin Rockwell Hardness Tester
Series 640
  • Twin tester--Regular Rockwell & Rockwell Superficial hardness for metal and plastic material
  • Horizontal protrudent indenter design, also suitable for internal and external testing
  • Testing on surfaces difficult to reach. Testing internal surface of rings and tubes with diameters over 23mm
  • Testing force is set automatically according to testing scale
  • Provided with many features such as high measuring precision, wide measuring range with 30 Rockwell scales
  • Measuring results are digitally displayed and can be printed, or transmitted to external computer automatically by USB or RS-232 cable
  • Test value can be transformed to the value of HB, HV, HK and σb value
  • The tester meets all the following standard such as ISO 6508-2, ASTM E18
Digital Models
Rockwell Scales Test Force Resolution Test Height Throat Depth Code No.
HRA, HRB, HRC, HRD, HRE,HRF, HRG, HRH, HRK, HRL,HPR, HRR, HRS, HRV 147.1, 294.3,  441.3N
(15, 30, 45kgf)
0.1HR 260mm 150mm 640-20
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