Leitz PMM-C

The Leitz PMM-C is a fixed bridge/moving table-type coordinate measuring machine. It combines ultra-high accuracy with outstanding speed, thus ensuring a very high throughput. This coordinate measuring machine is fast, affordable and allows to perform all measuring tasks, even the most complex ones. The Leitz PMM-C is also offered as a gear inspection center. It can accommodate maximum outside diameters up to 1550 mm.

The Leitz PMM-C line of high-performance CMMs combines ultra-high accuracy with unmatched high machine dynamics. This results in extreme short cycle times and therefore very high throughput. Fast data gathering and advanced High-Speed-Scanning further improve the throughput for efficient process control.

The Leitz 3D probe technology with integrated High-Speed-Scanning enables fast collection of large point numbers. Coordinate measuring machines of the PMM-C series are also capable of form inspection.

Measuring machines of the Leitz PMM-C series are also used as gear checkers. Very fast and ultra precise inspection of any kind of gears up to a diameter of 1550 mm is possible with those machines. Gear cutting tools such as hob cutters, broaches, shaper cutters and shaving gears can also be measured.

Leitz PMM-C gear checkers provide several advantages compared to a conventional single purpose gear checker:

They are much more flexible, as not only gears but any component and any geometry can be measured.
Leitz gear checkers 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 2400 mm
Leitz PMM-C coordinate measuring machines / gear checkers measure all datums as specified in the drawing, even in large internal gears.

Closed Frame design with fixed portal and moving table
High resolution steel scales by Heidenhain with automatic temperature compensation
Pre-stressed air bearings with electronic gap monitoring
Power transmission by re-circulating ball screw drives
Main structure made exclusively of granite and cast iron, avoiding aluminium
Leitz 3D probe system LSP-S2, suitable for stylus length up to 800 mm
As an option or addition to the 3D probe head the Leitz Precitec LR Optical White Light Sensor is available.

CMM Specifications and Gear Inspection

CMM Specifications

Model	X stroke [mm]	Y stroke [mm]	Z stroke [mm]
8.10.6	800	1000	580
12.10.6	1200	1000	580
12.10.7	1200	1000	700
12.10.7 Ultra	1200	1000	700
16.12.7	1600	1200	700
16.12.10	1600	1200	1000
24.12.7	2400	1200	700
24.12.10	2400	1200	1000
24.16.7	2400	1600	700
24.16.10	2400	1600	1000

Gear Inspection

Cylindrical gears:

Spur, helical, double helical, splines (internal and external)
Clutch gears (internal and external)
Gear segments (minimum No. of teeth: 1)
Gear racks

Bevel gears:

Straight bevel, spiral bevel, hypoid bevel, crown gears

Available interfaces:

Gleason GAGE 4/WIN; Klingelnberg KIMOS; bevel-gear-chain from University of Aachen

Gear cutting tool:

Hob cutter, broach, shaper cutter, shaving gears, form cutter

Evaluation standards:

DIN, ISO, AGMA, ANSI, JIS, CNOMO, CAT

Gear inspection with Leitz PMM-C Related Specifications	PMM-C 8.10.6	PMM-C 12.10.6 12.10.7	PMM-C 16.12.7 24.12.7	PMM-C 16.12.10 24.12.10	PMM-C 24.16.7 24.16.10
Modul range [mm]	0.5 – 100 (smaller modules on request)
Max. gear dia. – spur [mm]	750	950	1150	1150	1550
Max. gear dia. – helical* [mm]	500	700	900	900	1300
Max. gear width [mm]	600	700	700	1000	700 / 1000
Max. shaft length [mm]	1000	1200	1600 / 2400	1600 / 2400	2400

* Depending on styli configuration and module

Building a world where quality drives productivity

Hexagon Manufacturing Intelligence helps industrial manufacturers develop the disruptive technologies of today and the life-changing products of tomorrow. As a leading metrology and manufacturing solution specialist, our expertise in sensing, thinking and acting – the collection, analysis and active use of measurement data – gives our customers the confidence to increase production speed and accelerate productivity while enhancing product quality.

Through a network of local service centres, production facilities and commercial operations across five continents, we are shaping smart change in manufacturing to build a world where quality drives productivity.

Hexagon is a global leader in sensor, software and autonomous solutions. We are putting data to work to boost efficiency, productivity, and quality across industrial, manufacturing, infrastructure, safety, and mobility applications. Our technologies are shaping urban and production ecosystems to become increasingly connected and autonomous — ensuring a scalable, sustainable future.

Hexagon (Nasdaq Stockholm: HEXA B) has approximately 20,000 employees in 50 countries and net sales of approximately 3.8bn EUR.

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