Fineness board

Fineness board

This product is also known as a scraper fineness meter andHegmanRules. All types of solid materials must be ground into finer particles in order to disperse in fluid equipment, and the physical properties of final dispersion are usually referred to as“fineness”It not only depends on the actual size of the particles, but also on the degree to which they are dispersed.

The degree of dispersion gradually varies from 0 to 8 micrometers or 'Hegman' values.

0 Hegman=100 micron particle size.

4 Hegman=particle size of 50 microns.

8 Hegman=0 micron particle size.

The use of fineness plates can indicate the presence of unwanted coarse or aggregated particles in dispersion, and it is not a measurement of particle size or particle size distribution in coatings. Used to control the quality of dispersed products in production, storage, and application. Such as paint, plastic, pigments, printing ink, paper, ceramics, medicine, food, etc.

operating stepsPour a slightly larger amount of sample into the deeper end of the groove, and use the straight edge of the provided scraper to scrape and pull the sample towards the shallower end of the groove. The location where many rough particles are visible on the surface is the corresponding test point.

Standard: ASTM D 333 D 1210 D 1316

DIN EN 21524

ISO 1524

FTMS 141 a, Method 4411.1

Order information technology indicators

Model name, groove size, groove number, unit measurementscopeSize Net Weight
1509 13 × 130mm 2 microns/Hegman0-15/8-6.8169 × 42 × 13mm 1kg 1510 13 × 130mm 2 microns/Hegman0-25/8-6169×42×13mm 1kg
1511 13 × 130mm 2 microns/Hegman0-50/8-4169×42×13mm 1kg
1512 13 × 130mm 2 microns/Hegman0-100/8-0 169×42×13mm 1kg

2500 No. 25 0.5 × 2 in 2 Hegman/Mils8-0/0-5 0.5×2.5×4.75in 0.9kg 2501 45 号 0.5×4in 2 Hegman/Mils8-0/0-5 0.5×2.5×6.75in 1.6kg 2502 65 号 0.5×6in 2 Hegman/Mils8-0/0-5 0.75×2.5×8in 1.8kg

2503 No. 5251 0.5×5in2 microns 0-250.5×2.5×6.75in1.8kgMils 0-1Hegman 8-6

2504 No. 5252 0.5×5in 2 Micron 0-250.5×2.5×6.75in1.8kg
Mils 0-1
Hegman 8-4

2505 5254号 0.5×5in 2Micron 0-1000.5×2.5×6.75in1.8kg
Mils 0-4
Hegman 8-0


2506 54 2 × 5in 1 Hegman/micron8-0/0-1000.75×3.5×7.5in 3.6kg 2507 52 号 2×5in 1 Hegman/micron8-4/0-50 0.75×3.5×7.5in 3.6kg 2508 51 号 2×5in 1 Hegman/micron8-6/0-25 0.75×3.5×7.5in 3.6kg 25096251-G 1×6.25in 2Hegman 8-01×3.5×9.5in5.0kg
Micron 0-100
NPIRI 0-10
2510 6252-G2 1×6.25in 2Hegman 8-41×3.5×9.5in5.0kg
Micron 0-50
NPIRI 0-20

2511 6254-G3 1×6.25in 2Hegman 8-01×3.5×9.5in5.0kg
Micron 11lbs
NPIRI 0-30

2512 PD-250 1 × 6.25in 2 microns 0-50/0-2501×3.5×9.5in 5.0kg 2513 PB-20 0.5×8in 2 MILs 0-20 1×2.5×9.5in 3.0kg
2515 SI 1 0.5×6in 2 微米/NPIRI0-25/0-10 1×1.5×8in 1.6kg 25165252-N12.7x127mm 2 microns 0-50 12.7x63.5x171.5mm 1.8kg Hegment 4-8
North 5-10 4.0kg 25175254-N 12.7x127mm 2Micron 0-10012.7x63.5x171.5mm1.8kg Hegment 0-8
North 5-10

Basic configuration:
Scraper blade; Reusable packaging box

1509-1512 allowable deviation ± 2.5 micrometers

2500-2517 tolerance ± 5.1 micrometers

Order Informationtechnical indicators

Model nameNet weight shipping weight

1518 replaceable scraper, 50mm0.12kg(0.26lbs) 0.45kg(1lbs)

2514 replaceable scraper, 95mm0.14kg(0.31lbs) 0.52kg(1.19lbs)