LEITZ PMM-C Precision coordinate measuring machine

Bridge - Ultra-High Accuracy

Ultra-high accuracy fixed probe head measurements to the tightest part tolerances.

Leitz PMM-C CMMs are highly precise, premium metrology devices that deliver fast, ultra-high accuracy results to fulfil the most demanding inspection requirements across a range of precision applications.

The latest generation of machines offers exceptional accuracy across the series, with specific configurations and capabilities to serve individual application needs.

Two base models – Precision and Flexibility – address high precision applications with very tight form tolerances and applications that also require a high degree of sensor flexibility.

The Leitz PMM-C Precision model is configured to achieve the best possible measurement capability using ultra-high precision fixed probe head measurements. This model offers maximum repeatability and form measurement accuracy, even for long or multi-styli configurations in fast single-point probing or variable high-speed scanning procedures.

A modular sensor and styli changer rack enables the selection of the best styli options for each application.

Typical applications:

  • Smartphone camera lenses
  • Master parts and gauges
  • Master parts and gauges

Highly accurate measurement of size and form features with very low tolerances

  • Very tight tolerance functional form features: straightness, flatness, roundness, cylindricity, line/surface profile
  • Inspecting complex geometries and high-value sensitive parts with the tightest tolerances at sub-micron levels
  • Evaluation of all gear parameters and modifications
  • Calibrating gauges and master parts
  • Precise measurement and evaluation of special geometrical features (e.g. polygons, blisks, blades)

Leitz PMM-C Precision benefits

  • Fast ultra-high accuracy measurement of very tight tolerance (< 7 µm) functional form features
  • Very high measurement capability (Cg, Cgk, Gauge R&R)
  • Sub-micron accuracy and reproducibility required for calibrating master parts and gauges
  • Increased acceptance range of produced parts thanks to minimised measurement uncertainty
  • Measuring any type of gear, gear segments, gear racks and gear cutters.
  • Low force probing to avoid part distortion or damage
  • Non-contact measurements with chromatic white light and interferometric sensors
  • Simultaneous 4-axis scanning – optical or tactile – in combination with a rotary table

Fixed scanning probes

  • Fast single-point probing and high speed scanning for form and profile measurements with maximum accuracy and flexibility

Modular sensor and styli changer rack

  • Uninterrupted measurements with automatic multi-styli use within a single part part program to adapt to different measurement tasks.

Closed-frame design
The granite base and fixed portal guarantee long-term stability. The high stiffness of the measurement axes ensures consistent accuracy over the entire measurement volume.

Messaging lights
Know what the CMM is doing. Messaging lights on the machine provide at-a-glance monitoring of the CMM’s operating mode.

Sweet spot (option together with Accuracy+)
Achieve ultimate accuracy levels for measurement of very tight tolerances on smaller parts or features that need to use only a limited area of the potential measurement volume.

Moving table
An efficient and precise travelling measuring table on pre-loaded air bearings ensures stable dimensional relationships and efficient movement, with no tilting or twisting.

High-speed and safety
Monitoring by two 2D laser scanners allows worry-free high-speed measurement in CNC mode. The machine will stop automatically when the user or an object encroaches upon the protected area.

4-axis scanning (option)
The optional rotary table allows measurement to be carried out with continuous 4-axis scanning, so highly complex parts can be inspected quickly with a high point density.

Save air, save energy
Eco Mode+ reduces compressed air consumption, contributing to a more sustainable future. Save up to 100% of compressed air when the machine is idle and reduce overall air consumption during a typical measurement routine.

High speed and accuracy
Servo-drives with recirculating ball screws support fast measurement. The CMM accelerates rapidly while retaining positional accuracy, reaching top speeds even over short movement paths.

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