M 300

Product Details

“A step ahead!”- with MarSurf M 300

Cable-free connection between evaluation unit and drive

The MarSurf M 300 was developed based on the well-proven class of
M-units from Mahr.

The Bluetooth interface between evaluation unit and drive unit is

This means for you: working even more flexibly without cable

A large, illuminated color display to read the parameters and the
profiles so that you can:
-read the correct results in a poorly lit atmosphere!

The MarSurf M 300 not only meets the requirements for
determination and documentation of selected parameters, but also
makes most of the parameters and characteristic curves stipulated
in DIN/
ISO/JIS available for the evaluation of the profile

Moreover, the MarSurf M 300 offers an integrated memory for up to
40,000 results or 30 profiles, as well as the functions of
tolerance monitoring, vertical scale selection and the setting of
unsymmetric intersection lines for peak count calculation.


  • Measuring range of up to 350 μm (.014 in)
  • Units μm/μinch selectable
  • Standards: ISO/ASME/JIS and MOTIF selectable
  • Travsersing length as per DIN EN ISO 4288/ ASME B46.1:
  • 1.75 mm, 5.6 mm, 17.5 mm (0.07 in, 0.22 in, 0.7 in)
    as per EN ISO 12085: 1 mm, 2 mm, 4 mm, 8 mm, 12 mm, 16 mm
  • Number of sampling lengths selectable from 1 to 5
  • Automatic selection of filter and traversing length
    conforming to standards
  • Phase-correct profile filter as per DIN EN ISO 11562
  • Cutoff 0,25 mm 0,80 mm 2,50 mm
    (0.010 in 0.032 in 0.100 in)
  • Short cutoff selectable
  • Parameters as per:
    DIN/ISO: Ra, Rq, Rz, Rmax, Rp, Rpk, Rk, Rvk, Rv,
    Mr1, Mr2, A1, A2, Vo, Rt, R3z, RPc, Rmr, RSm, Rsk
    JIS: Ra, Rz, RzJIS, Sm, S, tp
    ASME: Rp, Rpm
    MOTIF: R, Ar, Rx, W, CR, CL, CF
  • Tolerance monitoring in display and measuring record
  • Automatic or adjustable scaling
  • Printing of R-profile (ISO/ASME/JIS), P-profile (MOTIF),
    material ratio curve,
    measuring record
  • Output of date and/or time of the measurements
  • Integrated memory for the results of up to 40,000
    measurements and 30 profiles
  • Dynamic calibration function
  • Locking and/or password protection for instrument


  • On Shafts, large machines
  • Automotive engineering
  • On big workpieces
  • On milling and turning parts
  • On grinding and honing parts
  • In the production area to check the roughness of your

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