The Haas Automation ST-25 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 3,400 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Haas ST-25 lathe: 10 in (254 mm) chuck, 3 in (76 mm) bar capacity, 30 hp spindle with 300 ft-lbf at 500 rpm, 13 x 22.5 in turning envelope.
| 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 | 3,400 RPM |
| Spindle Motor Rating | 30.0 kW |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 9,000 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Chuck Size | 10 in (254 mm) |
| Max Swing | 21 in (533 mm) |
| Max Turning Diameter | 13 in (330 mm) |
| Max Turning Diameter With Bmt65 Turret | 11.75 in (298 mm) |
| Max Turning Diameter With Vdi Turret | 11.8 in (300 mm) |
| Max Turning Length | 22.5 in (572 mm) |
| Bar Capacity | 3 in (76 mm) |
| X-Axis Travel | 8.4 in (213 mm) |
| Z-Axis Travel | 22.5 in (572 mm) |
| Rapid Traverse | 945 ipm (24 m/min) |
| Max Thrust X | 4,100 lbf (18,238 N) |
| Max Thrust Z | 5,100 lbf (22,686 N) |
| Spindle Nose | A2-6 |
| Spindle Motor Power | 30 hp (22.4 kW) |
| Max Spindle Speed | 3,400 rpm |
| Spindle Torque | 300 ft-lbf @ 500 rpm (407 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 | 3,400 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) |
| Turret Stations | 12-Station BOT |
| Turret Od Vs Id Tools | Any Combination (will vary with turret) |
| Turret Boring Bar Rear Clearance | 4 in (102 mm) |
| Coolant Capacity | 55 gal (208 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, 70 A |
| Electrical High | 440 VAC 3-phase, 35 A |
| Shipping Domestic Pallet | 143 × 90 × 92 in (363 × 229 × 234 cm) |
| Shipping Export Pallet | 143 × 90 × 92 in (364 × 229 × 234 cm) |
| Machine Weight | 9,000 lb (4,083 kg) |
| Shipping Domestic Pallet With Conveyor | 143 × 90 × 92 in (363 × 229 × 234 cm) |
| Shipping Export Pallet With Conveyor | 143 × 90 × 92 in (363 × 229 × 234 cm) |
| Machine Weight With Conveyor | 10,000 lb (4,536 kg) |
Haas Automation publishes a list price of US$80,995 for the Haas ST-25 (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-25#price; the request is passed to Haas Automation or an authorised dealer.
The spindle and chuck. The ST-25 has a 10 in (254 mm) chuck, 3 in (76 mm) of bar capacity, 30 hp (22.4 kW) and 300 ft-lbf (407 N·m) at 500 rpm, with a 3,400 rpm maximum. The ST-20 has an 8.3 in (210 mm) chuck, 2.5 in (64 mm) of bar capacity, 20 hp (14.9 kW) and 150 ft-lbf (203 N·m), and runs to 4,000 rpm. Travels, swing and turning diameter are the same.
The table lists a 12-station BOT turret as the base configuration, with a 13 in (330 mm) maximum turning diameter. It also gives the diameter with two other turrets: 11.75 in (298 mm) with a BMT65 turret and 11.8 in (300 mm) with a VDI turret. OD and ID tools can go in any combination, depending on the turret.
No, Haas lists the sub-spindle as an option. When fitted it has a 5.3 in (135 mm) chuck, an A2-5 nose, a 1.5 in (38.1 mm) bore and a 6,000 rpm top speed, and it synchronises with the main spindle at up to 3,400 rpm. Its integrated brake holds 17 ft-lbf (23 N·m) and its rapids are 400 ipm (10 m/min).
WiFi is listed as standard. The two-stage parts catcher, sub-spindle, automatic parts loader, automatic door and the new-design tailstock are all listed as options. Haas also describes new, more compact and more rigid castings, more Z travel and an 11% smaller footprint than the predecessor as features of this generation.
The ST-25 needs 220 VAC three-phase at 70 A or 440 VAC three-phase at 35 A. Air demand is 4 scfm at 100 psi (113 L/min at 6.9 bar) and the supply must not fall below 80 psi (5.5 bar). The air hose and coupler are 3/8 in. Coolant capacity is 55 gal (208 L).
