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8/68

Abrasives

8

Cutting speeds

m/min

250 300 350 400 450 500 600 900

Burr ∅

mm

Revolutions

min

-1

2

40000 48000 56000 64000 72000 80000 95000 143000

3

27000 32000 37000 42000 48000 53000 64000 95000

4

20000 24000 28000 32000 36000 40000 48000 72000

6

13000 16000 19000 21000 24000 27000 32000 48000

8

10000 12000 14000 16000 18000 20000 24000 36000

10

8000 10000 11000 13000 14000 16000 19000 29000

12

7000 8000 9000 11000 12000 13000 16000 24000

16

5000 6000 7000 8000 9000 10000 12000 18000

20

4000 5000 6000 6000 7000 8000 10000 14000

Cutting speed only for Alu/Special Alu

m/min

400

500

600

900

1100

Burr ∅

mm

Revolutions

min

-1

3

42000

53000

64000

95000

117000

6

21000

27000

32000

48000

59000

8

16000

20000

24000

36000

44000

10

13000

16000

19000

29000

35000

12

11000

13000

16000

24000

30000

16

8000

10000

12000

18000

22000

Tungsten carbide burr (rotor cutter) DIN 8032/8033

Safety

recommendations:

Please observe

the recommended

revolutions!

Example:

HM burr, tooth system

3 PLUS, ∅ 12 mm.

Coarse machining of

non-hardened, non-

tempered steels.

Cutting speed: 450–

600 m/min.

Revolution range:

12000–16000 min-1.

HM burr, tooth system

alu, ∅ 12 mm. Coarse

machining of hard NF

metals.

Cutting speed: 600–

1100 m/min.

Revolution range:

16000–30000 min-1.

Application recommendations:

• Use high turning speeds, if possible. Please observe our turning/cutting

speed recommendations. With stationary use or countersunk jobs with

360°-wraps, this burr can be used at speeds below 3000 min

-1

as an

exception.

• Only use with rigid clamping systems/drives; tool beat and rattle leads to

premature wear.

• The contact surface of the burr to the workpiece should not exceed one

third of the circumference during processing. An excessively large wrap

angle of > 1/3 leads to uneven milling behaviour. This leads to tooth

breakage.

• For poor heat conductors such as

stainless steel, titanium alloys etc., we

recommend a significant reduction in

turning speed to avoid damaging the tool. Blue staining to

the shank and tool should be avoided.

• For heavily lubricating materials it is sensible to use lubricants (grease,

petroleum, chalk or other) to prevent the tooth system clogging.

Carbide burrs can generally be reground. Re-grinding of small and

miniature burrs is not advisable due to economic reasons.

Tooth system C/3

PLUS (according to

DIN MX)

Tooth system 5

(according to DIN F)

Tooth system 3

(according to DIN MY)

Aluminium tooth

system

Tooth system 4

(according to DIN MX)

Tooth system

Special Alu

Tooth system INOX

Reduced vibration and

less noise

Tooth system STEEL

50 % higher cutting

performance compared

to conventional cross

cutters

Material groups

Processing

Tooth system Cutting speed

Steel, cast

steel

Unhardened,

non-tempered steels

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

450– 600 m/min

C/3 PLUS

Fine machining = less

material removal

3

500– 600 m/min

Hardened, tempered

steels above 1200 N/

mm

2

(> 38 HRC)

Tool steels, tempering steels, alloyed steels,

cast steel

Coarse machining =

more material removal

3

250– 350 m/min

C/3 PLUS

4

Fine machining = less

material removal

5

350– 450 m/min

Coarse machining =

more material removal

STEEL

450– 750 m/min

Stainless

steel

INOX

Rust and acid

resistant steels

Austenitic and ferritic stainless steels

Coarse machining =

more material removal

3

250– 350 m/min

C/3 PLUS

4

INOX

450– 600 m/min

Fine machining = less

material removal

5

350– 450 m/min

Non-ferrous

metals

Soft NF metals,

NF metals

Alu alloys, brass, copper, zinc

Coarse machining =

more material removal

Alu

600–1100 m/min

Special Alu

400– 500 m/min

Fine machining = less

material removal

Alu

800–1100 m/min

Hard NF metals

Bronze, titanium/titanium alloys, hard

Alu alloys (higher Si content)

Coarse machining =

more material removal

3

250– 350 m/min

4

Fine machining = less

material removal

3

350– 450 m/min

Coarse machining =

more material removal

Alu

600–1150 m/min

Special Alu

400– 500 m/min

Fine machining = less

material removal

Alu

900–1100 m/min

Heat-resistant

materials

Nickel-based and cobalt-based alloys (engine

and turbine construction)

Coarse machining =

more material removal

C/3 PLUS

300– 450 m/min

4

Fine machining = less

material removal

5

350– 500 m/min

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

450– 600 m/min

C/3 PLUS

Fine machining = less

material removal

3

500– 600 m/min

Synthetics,

other

materials

Fibre-reinforced plastics (GFP/CFP), thermoplastic synthetics, hard

rubber

Coarse machining =

more material removal

Alu

500–1100 m/min

Special Alu

500– 900 m/min

Fine machining = less

material removal

Alu

500–1100 m/min

-

– 6 mm shaft ∅

Carbide burrs

1416