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M9 Coolant off
Siemens 840D 828D M-code · Mill and lathe
Turns coolant off on most machines. The coolant M codes are set by the machine builder, not by Siemens.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
How it works
Modal until coolant is turned on again.
Example program
M5 ; SPINDLE OFF
M30
Example is in inch. Check offsets and clearances first.
Watch out for
- Check the machine builder manual. Some machines turn coolant off with M5 or M30 too.
Machine builders set many M codes, and they change by model and options. Check the M code list for your machine.
Related codes
M9 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Coolant off |
| Haas NGC | Coolant off |
| Doosan (Fanuc) | Coolant off (upper side) |
| DMG Mori MAPPS (Fanuc) | Oil shot OFF Coolant discharge OFF |
| Mazak (EIA) | Coolant OFF |
| Okuma OSP | Coolant off (Lathes & Mills) |
| Mitsubishi M70 M80 | Coolant off |
| Brother Speedio | Coolant off |
| Heidenhain TNC (ISO) | Coolant off |
| Fagor 8055 8065 | Coolant off (builder defined) |
| LinuxCNC Tormach | Coolant off |
| Mach3 Mach4 | Coolant off |
| Centroid CNC12 Acorn | Coolant off |
| Hurco WinMax (NC) | All coolant off |
| Fadal | Coolant off |
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