Star SX
- Turning
- |Large-diameter sliding-headstock (Swiss-type) automatic lathe

The SX series computer numerically controlled sliding headstock lathe combines the traditional features of a Swiss-type lathe with STAR's state-of-the-art technology, thus offering the possibility of simultaneous front/back machining operations of turning, drilling, tapping and milling, as well as machining with three tools in cut.
This series has a turret that can work on both the main spindle and the counter spindle, and it also features a B axis on the gang tool post
The Star SX series, with the SX-38 model, takes sliding-headstock (Swiss-type) technology to larger diameters. Machining reaches ø38 mm with Revolving G.B. (up to ø42 mm with N.G.B. type) and a 320 mm headstock stroke, while the main spindle reaches 7,000 rpm at 7.5 kW continuous (11 kW peak). The machine is offered in Gang type (4 turning tools + 8 power-driven tools) or Turret type (10 stations, up to 2 tools per station). Rapid feeds reach 30 m/min and the control manages the turret XYZ axes with C-axis indexing.
| Parameter | SX-38 type B |
|---|---|
| Bar diameter (without guide bushing) | 42 mm |
| Turning diameter | 42 mm |
| Bar diameter | 42 mm |
| Turning length | 320 mm (GB) / 95 mm (NGB) |
| Turning length (without guide bushing) | 320 mm (GB) / 95 mm (NGB) |
| Guide bushing | Switchable + retractable guide bushing (RMGB) |
| Turning length (retractable guide bushing RMGB) | 289 mm |
| Spindle – speed | 7000 rpm |
| Spindle power (continuous) | 2.2 kW/3.0 kW (5min/30%ED) |
| Spindle power (peak) | 11 kW |
| Number of axes | 12 |
| Tool magazine – capacity | 4 tools (20mm x 1 + 16mm x 3); 20mm: 1/station, 16mm: 2/stat |
| Machine weight | 5800 kg |
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