The Haas Automation ST-15 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 4,000 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Haas ST-15 lathe: 8.3 in (210 mm) chuck, 2.5 in (64 mm) bar capacity, 20 hp (14.9 kW) spindle, 150 ft-lbf at 500 rpm, 16 in (406 mm) Z.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Haas Automation (United States) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Standard CNC |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Maximum Spindle Speed | 4,000 RPM |
| Spindle Motor Rating | 20.0 kW |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 7,900 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Chuck Size | 8.3 in (210 mm) |
| Max Swing | 16.5 in (419 mm) |
| Max Turning Diameter | 12 in (305 mm) |
| Max Turning Diameter With Bmt45 Turret | 11 in (279 mm) |
| Max Turning Diameter With Vdi Turret | 6.8 in (173 mm) |
| Max Turning Length | 16 in (406 mm) |
| Bar Capacity | 2.5 in (64 mm) |
| X-Axis Travel | 7.88 in (200 mm) |
| Z-Axis Travel | 16 in (406 mm) |
| Rapid Traverse | 1,200 ipm (30.5 m/min) |
| Max Thrust X | 3,300 lbf (14,679 N) |
| Max Thrust Z | 3,300 lbf (14,679 N) |
| Spindle Nose | A2-6 |
| Spindle Motor Power | 20 hp (14.9 kW) |
| Max Spindle Speed | 4,000 rpm |
| Spindle Torque | 150 ft-lbf @ 500 rpm (203 N·m @ 500 rpm) |
| Spindle Bore | 3.5 in (88.9 mm) |
| Sub Spindle Chuck Size | 5.3 in (135 mm) |
| Sub Spindle Nose | A2-5 |
| Sub Spindle Speed | 6,000 rpm |
| Sub Spindle Max Sync Speed With Main Spindle | 4,800 rpm |
| Sub Spindle Chuck Throat | Ø 1.3 in × 1.37 in DEEP (Ø 33 mm × 34.8 mm DEEP) |
| Sub Spindle Drawbar Bore | Ø 1 in × 4.5 in DEEP (Ø 25.4 mm × 114.3 mm DEEP) |
| Sub Spindle Spindle Bore | 1.5 in (38.1 mm) |
| Sub Spindle Integrated Brake Torque | 17 ft-lbf (23 N·m) |
| Sub Spindle Spindle Orientation Accuracy | ± 0.02 ° |
| Sub Spindle Rapids | 400 ipm (10 m/min) |
| Tailstock Taper | MT3 |
| Tailstock Hydraulic Quill Travel | 3.8 in (95 mm) |
| Tailstock Manual Body Positioning | 20 in (508 mm) |
| Tailstock Max Thrust Hyd Quill Only | 1,130 lbf (5,026 N) |
| Tailstock Min Thrust Hyd Quill Only | 140 lbf (623 N) |
| Turret Stations | 12-Station BOT |
| Turret Od Vs Id Tools | Any Combination (will vary with turret) |
| Turret Boring Bar Rear Clearance | 0.75 in (19.1 mm) |
| Coolant Capacity | 30 gal (114 L) |
| Air Required | 4 scfm @ 100 psi (113 L/min @ 6.9 bar) |
| Inline Air Hose | 3/8 in |
| Air Coupler | 3/8 in |
| Air Pressure Min | 80 psi (5.5 bar) |
| Electrical Low | 220 VAC 3-phase, 40 A |
| Electrical High | 440 VAC 3-phase, 20 A |
| Shipping Domestic Pallet | 126 × 70 × 81 in (321 × 178 × 206 cm) |
| Shipping Export Pallet | 126 × 70 × 81 in (321 × 178 × 206 cm) |
| Machine Weight | 7,900 lb (3,584 kg) |
Haas Automation publishes a list price of US$70,995 for the Haas ST-15 (verified 2026-10-02). Options, tooling, freight and installation are extra, so a dealer quote will differ. A specific price can be requested at https://machinetoolindex.com/machines/haas-st-15#price; the request is passed to Haas Automation or an authorised dealer.
The travels are: both have 7.88 in (200 mm) of X, 16 in (406 mm) of Z, a 16.5 in (419 mm) swing and 1,200 ipm (30.5 m/min) rapids. The spindle is not. The ST-15 has an 8.3 in (210 mm) chuck, 2.5 in (64 mm) of bar capacity and 20 hp (14.9 kW) at 4,000 rpm, where the ST-10 has a 6.5 in (165 mm) chuck, 1.75 in (44 mm) of bar capacity and 15 hp (11.2 kW) at 6,000 rpm.
2.5 in (64 mm), through a 3.5 in (88.9 mm) spindle bore on an A2-6 nose. The chuck is 8.3 in (210 mm). The ST-10 on the same travels passes 1.75 in (44 mm).
150 ft-lbf (203 N·m) at 500 rpm, from a 20 hp (14.9 kW) drive with a 4,000 rpm maximum. Peak torque arrives low in the range, which helps on larger diameters and in steel, at the expense of top-end speed for small parts.
The table lists 12 in (305 mm) as the maximum turning diameter and names the turret as a 12-station BOT. With a BMT45 turret the figure is 11 in (279 mm), and with a VDI turret it is 6.8 in (173 mm).
A three-phase supply of 220 VAC at 40 A or 440 VAC at 20 A, and 4 scfm of compressed air at 100 psi (113 L/min at 6.9 bar). The minimum air pressure is 80 psi (5.5 bar), and the hose and coupler are 3/8 in.
