Optimum OPTimill MB 4 - 4.8.1 Standard Values for Cutting Speeds

Version 1.1.1 - 2021-1-2530 Translation of original instruction
MB4
EN
MB4_GB_4.fm
4.8.1 Standard values for cutting speeds
[m/min] with high-speed steel and hard metal for upcut milling.
This results in the following standard speeds, dependent on
mill diameter, mill type and material.
Tool Steel Grey cast iron
Al
alloy
case-hardened
Plain milling cutters and shell end mills
[m/min]
10 - 25 10 - 22 150 - 350
Relieved milling cutters [m/min] 15 - 24 10 - 20 150 - 250
Cutter head with SS [m/min] 15 - 30 12 - 25 200 - 300
Cutter head with HM [m/min] 100 - 200 30 - 100 300 - 400
Tool diameter
[mm] plain milling cutters and
shell end mills
Steel
10 - 25 m/min
Grey cast iron
10 - 22 m/min
Al alloy
case-hardened
150 - 350
m/min
Speed [rpm]
35 91 - 227 91 - 200 1365 - 3185
40 80 - 199 80 - 175 1195 - 2790
45 71 - 177 71 - 156 1062 - 2470
50 64 - 159 64 - 140 955 - 2230
55 58 - 145 58 - 127 870 - 2027
60 53 - 133 53 - 117 795 - 1860
65 49 - 122 49 - 108 735 - 1715
Tool diameter
[mm]
Form mills
Steel
15 - 24 m/min
Grey cast iron
10 - 20 m/min
Al alloy
case-hard-
ened 150 - 250
m/min
Speed [rpm]
4 1194 - 1911 796 - 1592 11900 - 19000
5 955 - 1529 637 - 1274 9550 - 15900
6 796 - 1274 531 - 1062 7900 - 13200
8 597 - 955 398 - 796 5900 - 9900
10 478 - 764 318 - 637 4700 - 7900
12 398 - 637 265 - 531 3900 - 6600
14 341 - 546 227 - 455 3400 - 5600
16 299 - 478 199 - 398 2900 - 4900