Leitz PMM-G


The Largest High Precision 3D Coordinate Measuring Machines and Gear Inspection Systems in the World!


The all new Leitz PMM-G series of Coordinate Measuring Machines / Gear Testers in Overhead design was developed based on the experience of building more than 50 large PMM Gantry machines. The PMM-G offers a drastically increased throughput due to a complete new machine and drive concept.
Despite such large measuring strokes, these machines reach a precision and performance level, which is usually common with much smaller 3D Measuring Machines.

Parts measured on Leitz PMM-G coordinate measuring machines are large diesel engines, jet engine components, aircraft wing structures, columns of printing machines, satellites, large machine tool parts etc.

The new Leitz PMM-G can also be utilized as a gear inspection system for large and very large gearings and gear cutting tools.

Design features of the Leitz PMM-G:

  • Moving gantry in overhead design with minimized moving mass
  • Massive granite guiding structures in X and Y, on 2-point support
  • Ceramic Z-ram
  • Dual drives and dual scales in X
  • Leitz LSP-S2 probe system, suitable for stylus length up to 800mm
  • Integrated pneumatic damping system for PMM-G and foundation
Leitz PMM-G 3D coordinate measuring machines and gear inspection systems

Specifications of Leitz PMM-G Coordinate Measuring Machines / Gear Inspection Systems


Coordinate
Measuring Machine		 E
[µm]		 P
[µm]		 THP
[µm]		 Temp.-
range		 Probing-
frequency		 Vmax
[mm/sec]		 a max
[mm/sec2]
 PMM-G 30/40/50/60/70 30.20
 3.2 + L / 400 2.6
5.0/58s
18º-22º
 30/min 500 1000
 PMM-G 50/60/70 40.20
 3.5 + L / 400 2.9 5.5/58s
18º-22º
 30/min 500 1000
               
 PMM-G 30/40/50/60/70 30.25
 3.7 + L / 350 2.9
5.5/58s
 18º-22º 30/min 500 1000
 PMM-G 50/60/70 40.25
4.0 + L / 350
3.2 6.0/58s
18º-22º
 30/min 500 1000
               
 PMM-G 30/40/50/60/70 30.30
 4.2 + L / 350 3.3 6.0/58s 18º-22º 30/min 500 1000
 PMM-G 50/60/70 40.30
 4.5 + L / 350 3.6 6.5/58s 18º-22º 30/min 500 1000

Other measuring strokes, in particular with shorter Z-ranges, are available on request.



Gear Inspection with Leitz PMM-G measuring machines

The new Leitz PMM-G can also be utilized as a gear inspection system for large and very large gearings and gear cutting tools. Gears with diameters of up to 5000mm and with unlimited weight can be measured. Even bigger gear diameters can be inspected in disassembled condition.



Leitz PMM-G Gear Inspection Systems provide several advantages compared to a conventional single purpose Gear Tester:

  • They are much more flexible, as not only gears but any component can be measured.
  • Leitz Gear Inspection Systems work without a Rotary Table, i.e. alignment or centering of the gear is not required.
  • Unrivalled throughput by automatically measuring a large number of gears on one pallet.
  • Complete inspection of gears mounted on long shafts of up to 7000mm.
  • All datums are measured as specified in the drawing, even in large internal gears.


Leitz PMM-G Gear Inspection Systems - related Specifications


 
Leitz PMM-G XX.20.ZZ
Leitz PMM-G XX.30.ZZ 
Leitz PMM-G XX.40.ZZ 
 Modul Range [mm]
 0.5 - 100 0.5 - 100 0.5 - 100
 Max. Gear Dia. - spur [mm]
 1950 2950 3950
 Max. Gear Dia. - helical* [mm]
 1600 2500 3500
 Max. Shaft Length [mm]
 up to 7000 up to 7000 up to 7000
*The max. gear diameter depends on Modul and styli configuration. Even bigger gearings can be measured, if rotated once for 90° during the measurement.

Available Software Modules for Gear Inspection:


Cylindrical Gears Cylindrical Gear Unknown Gear Gear Gauges  
Bevel Gears Straight Bevel Gear Spiral Bevel Gear Gleason Gauge 4/Win  
Gear Cutters Hob Cutter Shaving Gear Shaper Cutter Broach
Worms Cylindrical Worm Worm Wheel Globoid Worm  
Others Step / Roller Gear      

Read more about Gear inspection with Leitz Measuring Machines.

Leitz PMM-G 3D Coordinate Measuring Machines and Gear Inspection Systems are individually made according to customer requirements. Please consult our sales team for a tailor made solution. For more detailed informations about Leitz high precision Coordinate Measuring Machines for large volumes and Leitz Gear Inspection Systems for large gear diameters please request the corresponding catalogue/data sheet.

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