• Mobile and stationary measuring instrument.
  • Roughness and waviness measurements.
  • Traversing lengths up to 26 mm.
  • Over 50 R, W and P surface parameters.
  • Automatic choice of cut-off and traversing length in accordance with international standards.
  • Dynamic calibration function.
  • Cable and the Bluetooth connection between the drive unit and evaluation instrument (4 m).
  • Magnetic probe holder (breakaway probe) BFW 250.
  • Motorized probe zero setting (max. 7.5 mm).

Technical Data

Measuring principle
Stylus method
BFW skidless system
Measuring range mm
+/- 250 µm (up to +/- 750 µm with 3x probe arm length)
Profile resolution
Measuring range +/- 250 µm: 8 nm
Measuring range +/- 25 µm: 0.8 nm
A filter according to the ISO/JIS
Gaussian filter as per ISO 11562
A filter as per ISO 13565
Number n of sampling length according to ISO/JIS
Contacting speeds
0,2 mm/s; 1,0 mm/s
Measuring force (N)
0.75 mN
Weight drive unit
approx. 0.9 kg
Weight measuring instrument
approx. 1.0 kg
Surface parameters
Over 50 surface parameters for R, P and W profiles according to current ISO/JIS or MOTIF standards (ISO 12085)


Machine building

    • Bearings, shafts, racks, valves

Automotive industry

      • Steering, brake system, gearbox, crankshaft, camshaft, cylinder head, cylinder block, turbocharger

                                   Steel industry

        • Measurement of sheet metal surfaces
        • Measurement of the roller surface


        • Surface roughness measurement for hip and knee endoprostheses

        • Aerospace

          • Turbine components


Measuring stand

  • ST-D, ST-F, and ST-G
  • Holder on measuring stand

Other accessories

  • CT 120 XY table, parallel vise, V-block
  • Assorted probe arms for the BFW probe system


  • MarSurf M 400 evaluation instrument
  • MarSurf SD 26 drive unit including BFW 250 probe system
  • Standard probe arm (6852403)
  • 1 roll of thermal paper
  • Wide-range power supply unit with 3 adapters
  • 2 USB cables (for connecting to the PC and the M 400)
  • Operating instructions
  • With a Case