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Abrasives
8
Application recommendations:
1. HSS burrs, thanks to their special tooth geometry and high
production quality, particularly suitable for deburring, chamfering,
cast-iron fettling and processing aluminium. They can also be used
cost-effectively with low-power machines in the low turning rate
range.
2. HSS burrs should be used with low-revolution machines,
compared to hard-metal burrs.
3. They are not available for applications where there are
high revolution rates.
4. The toughness of high-speed steel (HSS) provides greater
stability of tooth cutting.
Example:
HM burr, tooth system 1, ∅ 12 mm. Coarse machining of soft NF metals.
Cutting speed: 200–300 m/min.
Revolution range: 5400–8000 min
-1
.
Tooth system 1
without chip deflector.
Tooth system 3
with chip deflector.
Tooth system 5
without chip deflector.
Observe safety
recommendations:
Please observe the
recommended
revolutions!
Cutting speeds
m/min
60
80
100
200
250
300
Burr ∅ mm
Revolutions
min
-1
2,3
8400 11100 13900 27700 34600 41600
3,2
6000 8000 10000 19900 24900 29900
4
4800 6400 8000 16000 19900 23900
5
3900 5100 6400 12800 16000 19100
6
3200 4300 5400 10700 13300 16000
7
2800 3700 4600 9100 11400 13700
8
2400 3200 4000 8000 10000 12000
10
2000 2600 3200 6400 8000
9600
12
1600 2200 2700 5400 6700
8000
14
1400 1900 2300 4600 5700
6900
16
1200 1600 2000 4000 5000
6000
HSS burr
Material groups
Processing
Tooth system Cutting speed
Steel, cast
steel
Uncured, non-
tempered steel up
to 1200 N/mm
2
(< 38 HRC)
Construction steels, carbon steels, tool
steels, unalloyed steels,
case-hardened steels, cast steel
Coarse machining =
more material removal
3
60– 80 m/min
Fine machining = lower
material removal
3
80–100 m/min
5
60– 80 m/min
Stainless
steel
INOX
Rust and acid-
resistant steels
austenitic and ferritic
stainless steels
Coarse machining =
more material removal
1
60– 80 m/min
Fine machining =
lower material removal
1
80–100 m/min
Non-ferrous
metals
Soft NF metals
Alu alloys, brass, copper, zinc
Coarse machining =
more material removal
1
200–300 m/min
Fine machining =
lower material removal
Cast iron Grey cast iron,
white cast iron
Cast iron with lamellar graphite EN-GJL (GG),
with nodular graphite/ductile iron EN-GJS
(GGS), white malleable EN-GJMVV (GTW),
black malleable EN-GJMB (GTS)
Coarse machining =
more material removal
3
60– 80 m/min
Fine machining =
lower material removal
3
80–100 m/min
5
80–100 m/min
Synthetics,
other
materials
Fibre-reinforced, thermoplastic and duro-plastic synthetics, hard
rubber, wood
Coarse machining =
more material removal
1
200–300 m/min
Fine machining =
lower material removal
1
250–300 m/min
HSS burrs
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