Координатно-измерительные машины HEXAGON LEITZ PMM-C LINE - страница 8

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SOLID AS A ROCK

Every detail of the Leitz PMM-C series shows the emphasis placed on measurement certainty.

The characteristic feature of the series is the Closed Frame design, which is comprised of a

solid granite base, a fixed portal with cast iron pedestals and a granite crossbeam.

FeaturesBenefits
Solid design: granite base, fixed portal of cast iron with a granite crossbeamCompared to aluminium, granite shows hardly any move- ment with temperature fluctuations. It ensures long-term stability, high stiffness of the measurement axes and consistent accuracy over the entire measurement volume.
Travelling measuring table on pre-loaded air bearings with centrally positioned spindle driveThe spindle drive ensures constant dimensional relation- ships and efficient movement sequences with no tilting or twisting.
Decoupled X and Y axesDeviations in the guidance of one axis has no effect on the other axis. For quick correction and restart.
Servo-drives with recirculating ball screwsThese accelerate rapidly while retaining positional accuracy, reaching top speeds even over short movement paths.
Supporting and guiding air bearings with the largest possible bearing baseThe table is guided on a unique Leitz dovetail guideway, friction- and wear-free. The air bearings are mainte- nance-free.
Precision steel scale barsThe scale bars have the same expansion coefficients as most measured parts. Errors of measurement due to changes in temperature or faulty operation are also minimized.
High-resolution scale bars: up to 0.004 µm for the Leitz Infinity, all other models having 0.02 µm resolutionFor the highest reproducibility of measurement results.
Integrated temperature sensorsAutomatic compensation for temperature-conditional residual errors of the scale bars.
State-of-the-art electronic controlControls complex movement sequences and evaluates the measurement data.
Remote diagnosis over the InternetServicing downtime kept short.
Full safety and collision protection system for the LeitzIn the event of a detected collision, the measuring se-
PMM-C, Ultra and Infinity: probe head, probe styli and quill are protected by sensorsquence stops and a crash is avoided. This minimizes repair costs and maximises operating times.