14
Operation
Grinding Stone Classification
Besides the technical data as diameter, width and centre hole size the grinding
stones are labelled with a digit/number code. The meaning of that digit/number
code can be gathered from the table below.
Data
Meaning
Comment
A
GRINDING MATERIAL
A For Aluminium Oxide
C For Silicon Carbide
60
GRAIN SIZE
24
(coarse),30,36,46,54,60,70,80 (fine)
M
QUALITY
K (soft),L,M,N,O,P (hard)
5
STRUKTURE
Structural numbers indicating the degree of
porosity, these are not always present.
V
BINDER
V = Ceramic
