Mill-turn machining
Turned and milled complete, in one setup.
Two Okuma Multus U3000 multi-tasking centers. The part is turned, milled, drilled, tapped, transferred to the sub-spindle and finished on the back side without ever coming out of the machine — so it never loses its datum.
- Ø25.59″ × 43.31″
- Tolerances to ±0.0001″
- Minimum order 1 part
- 2-day rush available
- Livermore, CA
Specifications
The numbers.
| Machines | 2 × Okuma Multus U3000 1SW1000, OSP-P500 control |
|---|---|
| Max turning diameter | Ø650 mm (25.59″) |
| Max machining length | 1,100 mm (43.31″) Z travel · 1,619 mm (63.74″) between spindle noses |
| Y axis | 250 mm (±4.92″) |
| B axis | −30° to +210°, 0.001° index |
| Spindles | Main and opposing, 50–5,000 rpm, Ø120 mm bore |
| Bar capacity | 3.125″ |
| Milling spindle | 12,000 rpm |
| Max workpiece weight | 160 kg one-side support · 500 kg between centers |
| Tooling | HSK-A63 / Capto C6, 80-tool magazine |
| Tolerances | To ±0.0001″ on the Multus where the print calls for it |
| Materials | Aluminum alloys · stainless steels · carbon and alloy steels · titanium · brass, bronze and copper · high-temperature alloys including Waspaloy and single-crystal · engineering plastics |
| Minimum order | 1 part — we take one-offs |
| Lead time | Quoted per job. 2-day turnaround available for hot projects. |
| File formats | STEP, IGES, Parasolid, native Fusion 360 or SOLIDWORKS, plus PDF / DXF prints |
In the machine
Long part machined between spindles.
Held by the main spindle and supported by the sub-spindle — length that would chatter in a conventional setup stays rigid and stays true.
Typical work
Parts we make this way.
If yours isn't on the list, it doesn't mean we can't — it means send the model and we'll tell you straight.
- Shafts and spindle components
- Housings and manifolds
- Valve bodies
- Flanged fittings and adapters
- Rotors, hubs and discs
- Bushings and spacers
- Threaded and cross-drilled components
- Parts currently needing 3+ setups
Other services
Not quite it?
Parts rarely fit one category cleanly. We'll route your job to whichever machine holds it best — that's the advantage of having all of them under one roof.
Why it comes out right
What you actually get.
No stack-up
Every refixturing adds error. Finishing complete means the relationship between your features is held by the machine, not by a fixture stack.
Sub-spindle transfer
The back side is machined in the same cycle — no manual flip, no second fixture, no second setup to quote.
Probed in process
Renishaw Inspection Plus on the spindle checks features while the part is still clamped, and the machine corrects itself.
Send us the model.
You'll get a straight answer on whether this is the right process for your part — including if it isn't.