MarSurf M 400 Mobile surface measuring instrument
MarSurf M 400. The best of the "mobiles"
Surface evaluation using skidless tracing is not only needed in the measuring room but is required more and more in production as well.
This usually means higher demands on operator qualities, more time, more adjustment work.
In the line of "mobile surface metrology", MarSurf M 400 offers this required scope of performance and at the same time simple and fast operability.
  • 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 Bluetooth connection between drive unit and evaluation instrument (4 m) (MarSurf M 400 C is only with cable connection)
  • Magnetic probe holder (break away probe) BFW 250
  • Motorized probe zero setting (max. 7.5 mm)
  • Technical data
  • Applications
  • Accessories
  • Shipment

Positioning speed
0.5; 1.0
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
Filter according to ISO/JIS
Gaussian filter as per ISO 11562
Filter as per ISO 13565
Number n of sampling length according to ISO/JIS
Contacting speeds
0,2 mm/s; 1,0 mm/s
2 µm
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 roller surface

      • Medicine
        • 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
  • Case