Nakamura-Tome WT series and Doosan Puma lathes with Y-axis and live tooling. For shafts, pins, bushings, flanges, connectors, and housings — anything round. Mill-turn capability means cross-holes, flats, and threads are cut in one setup.
CNC turning rotates the workpiece while a cutting tool moves in X (radial) and Z (axial) directions — producing cylindrical features like shafts, bushings, and flanges. Our lathes add Y-axis and live-tool spindles, meaning a rotating cutter can mill flats, cross-holes, slots, and threads on the side of a turned part without re-fixturing.
This matters for two reasons. First, every setup introduces alignment error; mill-turn eliminates setup-to-setup errors entirely. Second, every setup takes labor — a mill-turned part might have 6 operations completed in 2 minutes of cycle time, where a two-machine process (turn then mill) would take 8 minutes plus fixture work.
Long slender shafts (length-to-diameter ratio above 10:1) require tailstock support or steady rest to prevent deflection. For ratios above 20:1, consider Swiss-type turning — the guide bushing supports the bar right at the cutting point, enabling ratios up to 40:1.
| Machine | Capacity | Spindle / Capability | Qty | Typical use |
|---|---|---|---|---|
| Nakamura-Tome WT-150II | Ø300 × 600 mm · Y-axis · dual spindle | 6,000 rpm · live tool 6,000 rpm | 3 | Mill-turn production, small-medium complex parts |
| Doosan Puma 2600SY | Ø420 × 1000 mm · Y-axis · sub-spindle | 4,500 rpm · live tool 6,000 rpm | 2 | Larger mill-turn work, aerospace shafts |
| Doosan Puma 400LB | Ø420 × 1500 mm | 3,500 rpm | 2 | Long shafts, large flanges, non-complex turning |
| Haas ST-20Y | Ø305 × 533 mm · Y-axis | 4,000 rpm · live tool | 2 | Small to medium prototype mill-turn work |
| Haas ST-10 | Ø203 × 356 mm | 6,000 rpm | 2 | Small-diameter production turning |
Hydraulic cylinder rods, pump shafts, valve spools. Usually 4140 steel or 17-4 PH stainless, ground to Ra 0.4 μm on critical diameters.
NPT, BSPP, JIC hydraulic fittings, RF connector bodies. Brass C360 for fluid fittings, tin-plated brass or nickel-plated aluminum for RF.
Tight-tolerance bushings for aircraft assembly, precision spacers for optical systems. Usually steel or titanium, with ground ID for bearing fits.
Instrument shafts, trocars, drill guides. Titanium Gr 5 or Gr 23 ELI, passivated to ASTM F86, often PVD-coated.
Custom ball screw ends, threaded shafts, gear shaft blanks. Pre-hardened 4140 or through-hardened for final grinding.
Knobs, thumbscrews, cam-lock mechanisms, product hardware. Often aluminum with anodized finish, or brass/stainless for premium feel.
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