Multi-Axis Turn-Mill
Doosan Puma SMX 2600ST — what we run on it.
Twin-spindle B-axis turn-mill with sub-spindle, 80-tool magazine, glass scales, and high-pressure coolant. The flagship for parts that need turn + mill + back-work in one chucking — production runs of complex, prismatic-and-cylindrical hybrid geometry.
01 · Specs
The machine.
- Bar capacity
- 3.0″ (76 mm)
- Main + sub spindle
- 35 HP each, synchronized for back-work
- B-axis tool spindle
- 12,000 RPM, ±120° tilt — full 5-axis on cylindrical work
- Lower turret
- 12-station, supports simultaneous cutting on main spindle
- Tool magazine
- 80 stations, dual-arm ATC
- Coolant
- High-pressure through-tool, flood, mist
- Scales
- Glass scales on all axes
- Bar feeder
- ATS bar loader, magazine-fed
02 · Sweet spot
Done-in-one production parts.
The SMX’s 9-axis architecture (X/Y/Z + B + C on the main, sub-spindle X/Z, lower turret X/Z) lets us do almost any combination of turn + mill + drill + thread + back-work in a single chucking. Real applications:
- Defense fastener & pin work — 17-4PH, 304/316 stainless, titanium. Bar-to-finished-part with cross-hole drilling, wrench flats, and threaded ends in one cycle.
- Aerospace bushings & sleeves — Inconel, Ti-6Al-4V. ID-OD concentricity 0.0002″ held by single chucking.
- Medical instrument bodies — 316L, 17-4PH H1025. Hex broaches, axial slots, and radial features off one bar — no secondary milling op.
- Hydraulic valve trim — chromoly, 4140. Internal lands, port-angles, threaded sealing surfaces all in one setup.
- UAV motor housings & bearing carriers — 7075, MIC-6. ID bores with face-mounting flange and angled bolt patterns.
03 · Why turn-mill matters
One setup beats four.
A traditional production flow on a complex turn+mill part runs lathe → re-fixture → vertical mill → re-fixture → horizontal mill → re-fixture → secondary lathe. Every fixture change introduces stack-up error and adds setup time. The SMX collapses that whole chain to one cycle.
For TIR-critical work (concentricity, runout, perpendicularity to a turned datum) this is decisive. We’ve held 0.0002″ concentricity on parts with 7+ features that conventionally would have needed re-indication on every setup.
04 · When NOT to pick this machine
Wrong-fit jobs.
- Bar < 1.0″ with high L:D → Tsugami Swiss-type. Guide bushing handles deflection-prone small-diameter work better.
- Pure prismatic 5-sided work → Kitamura Mytrunnion. Trunnion 5-axis is faster on non-rotational geometry.
- Plate / large-envelope mill → Haas VF-6 or DNM-4500-S. SMX is bar-fed; plate work needs vise.
- Simple OD/ID turning, low complexity → Daewoo Puma 12S or Lynx 200L. SMX programming overhead doesn’t amortize on 2-feature parts.
Got a complex turn-mill part?
Send a STEP file or drawing — we'll review whether the SMX is the right fit, or if a different machine in the shop is a better path.
Quotes in 24 hours