MarShaft | Optical shaft measuring devices

MarShaft SCOPE 250 plus

Art. no. 5361802

Flexible solution for fully automatic measurement of rotationally symmetrical workpieces

MarShaft SCOPE 250 plus from Mahr is designed for the optical quality assurance of small rotationally symmetrical workpieces. Users benefit from the high measuring accuracy of the matrix camera. The measuring station is designed for the smart factory of Industry 4.0: Measurements are fully automated and workpieces can optionally be recognized via the barcode reader.

MarShaft SCOPE 250  <i>plus</i>
MarShaft SCOPE 250  <i>plus</i>
The role of dimensional metrology is expanding at a dramatic rate, in parallel with innovations in manufacturing processes. Given the ever more stringent accuracy requirements and falling cycle times in production (turning, milling, grinding, etc.), rapid measurement directly at the manufacturing machine is absolutely essential. Measurement at the point of origin of the product, with rapid feedback to the manufacturing process to avoid waste.
Mahr’s flexible MarShaft SCOPE 250 plus shaft measuring device offers the right measuring solution for the fast, precise and fully automatic measurement of rotationally symmetrical workpieces in production.



The MarShaft SCOPE 250 plus has a high precision roundness measuring axis (C) and a vertical measuring axis (Z) with a measuring range of 250 mm.
At its heart is the state-of-the-art, high-resolution CMOS matrix camera with an image field of 1088 x 2048 mm (live image). The extremely high image acquisition rate of over 120 images per second keeps measuring times to a minimum. Zoom functions allow the smallest details to be measured, which with conventional measuring methods are difficult if not impossible to test.

Optical shaft measuring station MarShaft SCOPE 250 plus can be utilized in large industrial enterprises just as effectively as in small workshops. Production companies use it to test the production quality of smaller rotationally symmetrical workpieces. The measuring system is designed for testpieces with a diameter of up to 40 mm and a maximum length of 250 mm, such as precision turned parts, bone screws, or medical glass bottles.

MarShaft SCOPE 250 plus | Art. no. 5361802
Positioning speed C-axis 0.2 - 60 1/min
Positioning speed Z-axis 0.5 - 200 mm/s
Table load max. 5 kg
Error limit Length MPE ≤ (3.0 + l/125) µm; "l" in mm
Error limit diameter MPE ≤ (1.5 + d/40) µm; "d" in mm
Angular resolution 0.01 - 0.0001 °
Reference temperature 20 °C
Workpiece length max. 250 mm
Workpiece diameter max. 40 mm
Sensors optical
Camera system CMOS matrix camera
Special equipment Tailstock
Measuring computer SFF-PC (incl. Microsoft Windows 10 IoT LTSC)
Operating temperature 35 °C to 10 °C
Permissible humidity max. 90 %; non-condensing
Weight basic unit 120 kg
Scope of delivery 2 pieces 60° centering tips (⌀ 2 – 15 mm)

Variety of applications for our products

  • Length
  • Diameter
  • Form and position tolerances
  • Offsets
  • Recess width
  • Bevel width
  • Intersection points
  • Position of intersection points
  • Angles of rotation
  • Position of radii
  • Taper lengths
  • Angles
  • Pitches
  • Widths across flats
  • Outer threads
Label Art. no.
Rel_MarShaft MarWin
MarWin MarShaft
Rel_MarShaft
Short measuring times
Short measuring times ensure that production errors are detected immediately and are ideally prevented
Combined measurement methods
Complete measurement of shafts, highly accurate form and position measurement, contour measurement, thread measurement – all in one measuring system
Process-reliable measurement
Reliable quality control guarantees reliable production
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