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Grind Gages - µm / Hegman / NPIRI for Printing Ink, 2 paths

Art. No.: 2509

Grind Gage No. 6251 - G1
Grind gage - groove depth range 0-25 µm / 0-10 NPIRI

  • Path Size: 1 x 6.25 in
  • No. of Paths: 2
  • Scales: Hegman/Micron/NPIRI
  • Range: 8 - 6/0 - 25/0 - 10

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€666.00

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excl. taxes & shipping cost

The Fineness of Grind Gage is a flat steel block in the surface of which are two flat-bottomed grooves varying uniformly in depth from a maximum at one end of the block to zero near the other end. Groove depth is graduated on the block according to one or more scales used for measuring particle size.

The Hegman scale or National Standard scale may be abbreviated "NS" on the gage. The scale ranges from 0 to 8 with numbers increasing as the particle size decreases.

  • 0 Hegman = 4 mil/100 micron particle size
  • 4 Hegman = 2 mil/50 micron particle size
  • 8 Hegman = 0 mil/0 micron particle size

NPIRI scale:

National Printing Ink Research Institute. The scale begins with "0" at the infinite point and extends to "10" at a depth of .001 inches. While it is an arbitrary scale, it is a logical one in that these divisions are equivalent of tenths of mils.

  • Grind blocks made of high quality, corrosion resistant stainless steel for extended use
  • Dual channel designs
  • Groove depth is graduated on the block showing µm, Hegman and NPIRI scales
  • Made from ANSI 440C Stainless Steel 

Technical Specifications
Path Size1 x 6.25 in
Scalesµm, Hegman, NPIRI
No. of Paths2
Range 0 - 25 µm
Range 8 - 6 Hegman
Range 0 - 10 NPIRI
General
Weight5 kg
Weight11 lb
ASTM
D333
D1210
D1316
D6846
Grind block
Scraper (2514)
Storage case

Brochure

Place a slight excess of sample in the deep end of the groove and, with the straight-edge scraper provided, draw the sample toward the shallow end of the groove. Ratings are in terms of the point on the scale where the oversize particles, or traces made by them, first appear in substantial concentration. 

Care of Grind Gages: Clean the gage after each use. Use a solvent and a soft cloth. Keep the gage covered or encased at all times when not in use. Protect gages that lie idle for extended periods of time from rust with an oil coating or an oil soaked wrap.

 

Grind Gage No. 6252 - G2

Grind gage - groove depth range 0-50 µm / 0-20 NPIRI

Article No: 2510

Price: €666.00

Grind Gage No. 6254 - G4

Grind gage - groove depth range 0-100 µm / 0-40 NPIRI

Article No: 2511

Price: €666.00