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For Over 150 Years, The Standard of Accuracy
Pratt & Whitney Measurement Systems, Inc.
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Long Length (OD) Measuring Instruments
Long Length (OD) Measuring Instruments

Long Length (OD) Measuring Instruments


The Standard of Accuracy

When high accuracy and reliability are foremost requirements, consider the Pratt & Whitney Digital and Laser Measuring Machine.  These instruments are designed for many years of operation with minimum maintenance, without sacrificing accuracy or repeatability.  These long length measuring machines are offered in standard lengths to 120 inches (3 meters) with either our digital (Electrolimit) or laser based transducer, both easily measuring length, diameter, pitch diameter, roundness, parallelism, taper, and your precision parts.

Digital-Based Models:

The Digital (Electrolimit) Measuring Machine utilizes a precision graduated master bar and maintains a non-accumulative accuracy throughout the measuring range. 

Digital Measuring Machine 24 inch (600 mm) -  Model DMM-610 / part# U304393
Digital Measuring Machine 48 inch (1200 mm) -  Model DMM-1219 / part# U304395
Digital Measuring Machine 80 inch (2000 mm) -  Model DMM-2032 / part# U304396
Digital Measuring Machine 120 inch (3000 mm) - Model DMM-3048 / part# U304397

    Standard / Digital part numbers:

    24 inch = U50076 / U304393
    36 inch = U50077 / U304395 (48 inch Model)
    48 inch = U50078 / U304395
    80 inch = U50079 / U304396
  120 inch = U50080 / U304397

Laser-Based Models:

Our most recently developed Laser Measuring Machine provides laser interferometric measurements over the range of the system while utilizing a single master. 

Laser Measuring Machine 24 inch (600 mm) - Model LMM-610 / part # U308019 (new Model) Laser Measuring Machine 48 inch (1200 mm) - Model LMM-1219 / part # U307549  (new Model)

Laser Measuring Machine 80 inch (2000 mm) - Model LMM-2032 / part # U307740 (new Model)

Additional Laser Measuring Machine part numbers include: U305638, U305468, U305469, U305603.

The Digital & Laser Measuring Machine measures:

  • Plugs / Pins / Thread Wires
  • External Thread Gages
  • End Standards / Length Standards & Rods
  • Dial Indicators / Test Indicators
  • Taper Gauges / Taper Pipe Threads (API Gages)
  • Gears / Splines
  • Long Gage Blocks
  • Ball Bars
  • Precision Aerospace / Turbine Parts
ISO 17025 Accredited