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CUTTING-OFF
& GRINDING
WHEELS
Differentiation in the Range
TECHNICAL INFORMATION
MARKING SYSTEM OF ABRASIVE CUTTING-OFF & GRINDING WHEELS
Type of Abrasive
A
Grit size
30
Hardness Grade
S
Type of Bond
BF27
A = Aluminium Oxide
C = Silicon Carbide
Z = Zirconia Alumina
Coarse
16
20
24
Medium
30
to
60
Fine
80
to
100
Soft
N
O
P
Medium
Q
R
S
Hard
T
U
V
B = Bakelite/
Resinoid bond
BF = Bakelite and glass
fibre reinforcement
MACHINE PICTOGRAMS
Cutting-off
Grinding
Straight
Grinder
Angle
Grinder
Petrol Saw with
clamping device
(Rail)
Petrol Saw
Chop Saw
Stationary
machine
SHAPE SPECIFICATION SYSTEM
BF 27
BF 41
BF 42
Depressed centre grinding wheels,
thickness from 2,2-10mm, Available
in diameters 76-230mm
for hand-held machines
Application: grinding
Flat cutting-off wheels. Available
in diameters 76-406mm for hand-held
machines and 300-406mm
for stationery machines
Application: cutting-off
Depressed centre cutting-off wheels.
Available in diameters 76-230mm
Application: cutting-off