Oak Ridge National Laboratory 

Mahr MMQ40 Formtester

Mahr MMQ40 FormtesterThe Model MMQ40 Mahr Formtester is a precision metrology instrument used for checking tolerances of geometric form and location. Among the form elements that can be evaluated with this instrument are roundness, circularity, cylindricity, straightness, flatness and parallelism. The Formtester is connected to the Formmeter Model F3P measuring and evaluation computer, which controls its motion and provides data analysis, data storage and display capability. In addition, the Formtester can be connected directly to a CAD/CAM system to aid in visualization and evaluation of measurements.





Metals and Ceramics Division
Measuring volume Workpiece diameter up to 420 mm
Measuring height up to 490 mm
Distance C/Z axis 220 mm
Roundness measuring capability Roundness deviation at table top: < 0.07 micron + 0.001 micron / mm
Axial runout in table center: < 0.05 micron + 001 micron / mm
Table diameter: 220 mm
Maximum table load, centric: 600 N
Vertical straightness measuring unit, Z-axis Measuring path: 350 mm
Straightness deviation: < 0.25 micron / 100 mm (< 0.7 micron total)
Parallelism deviation: < 1.5 micron / 350 mm

The URL of this page is http://www.html.ornl.gov/mituc/formtest.htm.
Last modified on December 04, 2003 .

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