



Widely used in paint, coating, ink, food, medicine and other industries.
The fineness plate is a flat steel block with grooves on the surface. The depth of the grooves ranges from a maximum value at one end to a zero value at one end. The scale unit indicating the depth of the groove is engraved on the steel block to read the size of the particle value.
The scale unit H is the Hegman scale:
0 Hegman = 100 m
4 Hegman = 50m
8 Hegman = 0 m
Scale unit MIL mil:
1 MIL= 25.4 m
| model | Number of grooves | groove width | Scale unit | scale range | Dimensions |
| PS 2423 | 2 | 12mm | μm/H/MIL | 0-15/8-6.8/0-0.6 | 175×65×15mm |
| PS 2420 | 0-25/8-6/0-1 | ||||
| PS 2421 | 0-50/8-4/0-2 | ||||
| PS 2422 | 0-100/8-0/0-4 | ||||
| PS 2426 | 3 | μm | 0-25/0-50/0-100 |
GB/T 1724, 6753.1, 13217.5
ISO 1524
ASTM D 333, D 1210