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M112 Secondary spindle air blast on
Haas NGC M-code · Lathe
Turns on the secondary spindle air blast. With S and P it spins the spindle at S RPM with air for P milliseconds, then turns both off.
Format
M112 [S] [P]
Addresses
| Address | What it does |
|---|---|
S | Secondary spindle RPM while air blows |
P | Air time in milliseconds |
How it works
Modal until M113 when used without P.
Example program
M145 (SECONDARY SPINDLE STOP)
M112 S300 P2000 (AIR BLAST 2 SECONDS)
M111 (UNCLAMP)
M112 S300 P2000 (AIR BLAST 2 SECONDS)
M111 (UNCLAMP)
Example is in inch. Check offsets and clearances first.
Watch out for
- M112 alarms during G14. Use M12 under G14.
Related codes
M112 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | B-axis curvic & disc clamp |
| Mazak (EIA) | External tool compensation EXT start |
| Heidenhain TNC (ISO) | Contour transition between elements |
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