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Roundtest RA-120 and RA-120P


These are compact, affordable and simple-to-use instruments for measuring roundform geometry.

The Roundtest RA-120 and RA-120P offer you the following benefits:

  • The turntable accuracy of (0,04+0,0006H) µm provides high level form analysis.


  • The RA-120 has a compact body with integrated electronics and printer, making it ideal for
    installation in space-restricted locations.
  • You can easily view measurement results and recorded profiles on the large coloured LCD panel display.
  • One-key operations.
  • Support of 16 languages.
  • It complies with EN ISO standard like 12181-1, 12181-2, 12781-1 and 12781-2
  • USB Communication Program – Microsoft® Excel ® based – to import results and create, save and print out inspection certificates on PC.


  • The RA-120P is a PC based model with all operations controlled via powerful ROUNDPAK
  • Software ROUNDPAK gives you excellent possibilities for single measurement and part
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This is a compact roundness tester with D.A.T. (Digital Adjustment Table) function.

The D.A.T. gives you the following benefits:
  • The turntable displays centering and leveling adjustments digitally, making this challenging task easy enough for even an untrained operator to perform, through these four simple steps:

1. Preliminary measurement of two cross sections on the workpiece.
2. The centering and leveling adjustment values are displayed.
3. The digital micrometer heads on the rotary table are adjusted to match the values displayed.
4. Centering and leveling is complete. [Centering range : ±3 mm - Leveling range : ±1°]