MarSurf M 400 Mobile Surface Measuring Instrument
MarSurf M 400. The best of the mobile devices
Both in the measuring room and increasingly also in the production area, there is a need for surface evaluations requiring skidless tracing.
This generally requires more highly skilled operators, more time and more adjustment work.
Within the "mobile surface metrology" range, MarSurf M 400 provides the necessary range of functions, while at the same time being quick and easy to use.
  • 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 internatinal standard
  • Dynamic calibration function
  • Cable and Bluetooth connection between drive unit and evaluation instrument (4 m)
  • Magnetic probe holder (break away probe) BFW 250
  • Motorized probe zero setting (max. 7.5 mm)
  • Technical data
  • Applications
  • Accessories
  • Shipment

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
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

Surface roughness measurement for hip and knee endoprostheses

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 x USB cables (for connecting to the PC and the M400)
  • Operating instructions
  • transport case