Standard Values For Cutting Speeds - Optimum OPTImill MT 60 Operating Manual

4.6

Standard values for cutting speeds

[m/min] with high-speed steel and hard metal for upcut milling.
Tool
Plain milling cutters and shell end mills
[m/min]
Relieved milling cutters [m/min]
Cutter head with SS [m/min]
Cutter head with HM [m/min]
This results in the following standard speeds, dependent on
mill diameter, mill type and material.
Tool diameter [ mm ] shell end
mill, helical milling cutter
35
40
45
50
55
60
65
Tool diameter
[mm]
Form mills
4
5
6
8
10
12
14
16
EN
MT60
32
Steel Grey cast iron
10 - 25 10 - 22
15 - 24 10 - 20
15 - 30 12 - 25
100 - 200 30 - 100
Steel Grey cast iron
10 - 25 m/min 10 - 22 m/min
Speed [rpm]
91 - 227 91 - 200
80 - 199 80 - 175
71 - 177 71 - 156
64 - 159 64 - 140
58 - 145 58 - 127
53 - 133 53 - 117
49 - 122 49 - 108
Steel Grey cast iron
15 - 24 m/min 10 - 20 m/min
Speed [rpm]
1194 - 1911 796 - 1592
955 - 1529 637 - 1274
796 - 1274 531 - 1062
597 - 955 398 - 796
478 - 764 318 - 637
398 - 637 265 - 531
341 - 546 227 - 455
299 - 478 199 - 398
Translation of original instruction
Al alloy
case-hard-
ened
150 - 350
150 - 250
200 - 300
300 - 400
Al-alloy hard-
ened
150 - 350
m/min
1364 - 3183
1194 - 2785
1061 - 2476
955 - 2228
868 - 2025
796 - 1857
735 - 1714
Al-alloy hard-
ened
150 - 250
m/min
11937 - 19894
9549 - 15916
7958 - 13263
5968 - 9947
4775 - 7958
3979 - 6631
3410 - 5684
2984 - 4974
Version 1.0.4 - 2020-08-04
Operation