9-Axis Mill-Turn Machining
Our Mori Seiki 9-axis mill-turns turn, mill, drill and tap a part complete in one setup, using twin spindles, a B-axis milling head and a lower turret. The result is fewer setups, tighter relationships between features, and shorter lead times.
Short answer: We run three Mori Seiki 9-axis mill-turn centers (one NT4200 DCG and two NT1000s). They turn and 5-axis mill parts complete in one setup, up to Ø26 in swing.
Why done-in-one matters
Every time a part moves to another machine, it picks up a little error and some queue time. On a mill-turn, the turned diameters, milled features and cross holes all come from the same spindle centerline in one clamping. Concentricity and true position hold better, there are fewer fixtures to build, and lead times are shorter.
| NT4200 DCG/1500 | NT1000 (×2) | |
|---|---|---|
| Max swing | Ø26 in | Ø14.5 in |
| Turning length | 62.9 in | 15.74 in |
| Chuck | 8 in | 6 in |
| Bar capacity | 2.56 in | 2.05 in |
| Milling | B-axis head, 5-axis | B-axis head, 5-axis |
| Spindles | Main + sub | Main + sub |
Mori Seiki NT4200 DCG
Large mill-turn: Ø26 in × 62.9 in.
Mori Seiki NT1000
Compact mill-turn: Ø14.5 in × 15.74 in.
5-axis milling head
Mills, drills and taps at any angle on turned parts.
Related: 5-axis machining · Large part machining · Equipment list
Frequently asked questions
What is 9-axis mill-turn machining?
A 9-axis mill-turn is a CNC lathe and a 5-axis milling machine combined in one. Ours have a main and a sub spindle, a B-axis milling head that tilts, a lower turret, and Y-axis motion. A part can be turned, milled on any face, drilled and transferred to the second spindle for back-side work without leaving the machine.
What size parts fit your mill-turns?
The Mori Seiki NT4200 DCG/1500 swings Ø26 in with 62.9 in of turning length and an 8 in chuck. Bar capacity is 2.56 in. Our two NT1000Z machines swing Ø14.5 in with 15.74 in of turning length, a 6 in chuck and 2.05 in bar capacity. Usable part length on our shop floor is 62 in.
What parts are best on a mill-turn?
Shafts, inducers, small impellers, valve components, flanges, fittings, hubs and any turned part with milled flats, cross holes, slots or angled features. Anything that would otherwise go from a lathe to a mill to a second mill is a candidate.
Have a print or a STEP model?
Send it over. We review every RFQ by hand and include a lead time with every quote.