The Star Micronics ST-38 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 7,000 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Star Micronics ST-38: turret-type Swiss lathe for Ø38 mm (1-1/2 in) bar, 10-station turrets, 7,000 rpm, 7.5/11 kW main spindle, 350 mm stroke.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Star Micronics (Japan) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Standard CNC |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Maximum Spindle Speed | 7,000 RPM |
| Spindle Motor Rating | 7.5 kW |
| Spindle Taper Interface | Standard |
| Automatic Tool Changer (ATC) | 2 Tool Stations |
| Approx. Machine Weight | 6,250 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Max Machining Diameter | 38 mm (1-1/2 in) |
| Max Headstock Stroke Standard | 350 mm |
| Max Headstock Stroke Rmgb | 315 mm |
| Sub Spindle Speed | 7,000 rpm |
| Sub Spindle Power | 5.5 kW (continuous) / 7.5 kW (10min/40%ED) |
| Front Turret | 10 stations (front and back sides) |
| Tools Per Station | Max 2 tools (16 mm shank) or 3 sleeve tools |
| Rapid Feed Rate | 30 m/min (X1, X2, X3, Z1, Z2, Z3) |
| Machine Weight | 6,250 kg |
| Max Turning Diameter | ø38mm (1-1/2in) |
| Max Turning Length | 350mm (13-25/32in) |
| Max Spindle Speed | 7,000 rpm |
| Spindle Motor Power | 7.5 kW (continuous) / 11 kW (10min/25%ED) |
| Turret Stations | 10 stations |
| Tool Capacity | Max. 2 tools/station (16mm) |
| Headstock Stroke | 350 mm (13-25/32 in) |
| Turning Tools | 10 stations each |
| Bar Capacity | Ø38 mm (1-1/2 in) |
| Rapid Traverse | 30 m/min (for X1, X2, X3, Z1, Z2, Z3 axes) |
| Footprint | 3,477 × 1,859 × 1,865 mm |
Our best estimate for the Star Micronics ST-38 is $300,000 - $450,000. This is an estimate for a swiss-type lathes in this class, not a quote from Star Micronics; configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/star-micronics-st-38#price; the request is passed to Star Micronics or an authorised dealer.
A maximum of 2 tools with 16 mm shanks, or 3 sleeve tools. The turret row lists 10 stations with front and back sides. The table does not give a total tool count, which depends on how many stations carry sleeve holders.
Main spindle: 7,000 rpm, 7.5 kW continuous and 11 kW (10min/25%ED). Sub-spindle: 7,000 rpm, 5.5 kW continuous and 7.5 kW (10min/40%ED). The sub-spindle's continuous rating is about three quarters of the main spindle's.
The table lists a maximum headstock stroke of 350 mm as standard and 315 mm for RMGB, without expanding the abbreviation. In practice one configuration of the machine has the shorter stroke, so confirm which is being quoted if your parts are longer than 315 mm.
The ST-38 takes Ø38 mm (1-1/2 in) bar, runs to 7,000 rpm with 7.5 kW continuous and weighs 6,250 kg. The ST-20 takes Ø20 mm (25/32 in) bar, runs to 10,000 rpm with 3.7 kW continuous and weighs 4,850 kg. Both have a 350 mm (13-25/32 in) maximum turning length and 30 m/min rapids on X1, X2, X3, Z1, Z2 and Z3.
The listed footprint is 3,477 × 1,859 × 1,865 mm and the weight is 6,250 kg. The table does not say whether the bar feeder is included, so add its length when laying out the cell and check the floor rating against the machine weight.
