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Pratt & Whitney External Supermicrometer® Model C
Pratt & Whitney External Supermicrometer® Model C

If you're looking for a direct-reading metrology instrument and an electronic size comparator for use on the production floor. Look no further – the third-generation External Supermicrometer® provides durability, digital accuracy, speed of measurement, and range of applications.  The Super Micrometer comes in four models of varying length capacities.  Custom Super Micrometers of up to a 40 in. (1000 mm) measuring range are available upon request.

Product Code: PRATTEXTMODELC


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Pratt & Whitney External Supermicrometer® Model C

  • Heavy-duty cylindrical bed – Chromium-plated cylinder ensures long life and performance integrity and the rack and pinion drive eliminates movement during the measuring cycle
  • Adjustable pressure tailstock – Exclusive Electrolimit® tailstock offers adjustable pressure from 50 to 1350 g (2 to 48 ounces) for reliability and optimum performance
  • Carbide-tipped measuring spindles – Non-rotating measuring spindles have long life, corrosion-free lapped anvils and are calibrated to ultra finish and precision
  • Elevating table – Adjustability allows for presentation of the part to the instrument in a non-influencing manner
  • Direct-reading, microprocessor-based digital display – Easy-to-read digital display provides direct reading in inch or metric units
  • Calibrated analog meter – Establishes the reference zero for taking direct measurements from the microprocessor-based digital display
  • Digital module – Divides the measurement into 0.25 um (0.000010 in.) increments for high resolution
  • PC control software – Microsoft Windows® based software reduces data entry, eliminates transcription errors, and speeds up measurements for your Pratt Whitney Labmaster. GageCal automatically enters tolerances for gage blocks, plugs, pins, balls, threads (calculates pitch/major diameter) and flags out-of-tolerance conditions.

Model
C 250
U302566
C 375
U306001
C 500
U305989
C 625
U306005
Units
English
Metric
English
Metric
English
Metric
English
Metric
Accuracy
20 µinch
0.5 µm
20 µinch
0.5 µm
20 µinch
0.5 µm
20 µinch
0.5 µm
Repeatability
10 µinch
0.3 µm
10 µinch
0.3 µm
10 µinch
0.3 µm
10 µinch
0.3 µm
Measurement Range
0-10 inches
0-250 mm
0-15 inches
0-375 mm
0-20 inches
0-500 mm
0-25 inches
0-625 mm
Direct Reading Range
1 inch
25 mm
1 inch
25 mm
1 inch
25 mm
1 inch
25 mm
Measuring Force
2-48 oz.
50-1350 g
2-48 oz.
50-1350 g
2-48 oz.
50-1350 g
2-48 oz.
50-1350 g