The Haas Automation ST-35 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 3,200 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Haas ST-35: 12 in (305 mm) chuck, 4 in (102 mm) bar capacity, 15 in turning diameter, 40 hp A2-8 spindle at 3,200 rpm. Optional gearbox and sub-spindle.
| 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 | 3,200 RPM |
| Spindle Motor Rating | 40.0 kW |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 14,300 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Chuck Size | 12 in (305 mm) |
| Max Swing | 21 in (533 mm) |
| Max Turning Diameter | 15 in (381 mm) |
| Max Turning Diameter With Bmt65 Turret | 13.75 in (349 mm) |
| Max Turning Length | 32.5 in (826 mm) |
| Bar Capacity | 4 in (102 mm) |
| Distance Between Centers | 32.5 in (826 mm) |
| X-Axis Travel | 9.4 in (239 mm) |
| Z-Axis Travel | 32.5 in (826 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 | A2-8 |
| Spindle Motor Power | 40 hp (29.8 kW) |
| Max Spindle Speed | 3,200 rpm |
| Spindle Torque | 425 ft-lbf @ 325 rpm (576 N·m @ 325 rpm) |
| Spindle Torque Optional Gearbox | 1,400 ft-lbf @ 150 rpm (1,898 N·m @ 150 rpm) |
| Spindle Bore | 4.62 in (117.3 mm) |
| Sub Spindle Chuck Size | 6.5 in (165 mm) |
| Sub Spindle Nose | A2-5 |
| Sub Spindle Speed | 4,100 rpm |
| Sub Spindle Max Sync Speed With Main Spindle | 3,200 rpm |
| Sub Spindle Chuck Throat | Ø 1.81 in × 1.6 in DEEP (Ø 46 mm × 40.6 mm DEEP) |
| Sub Spindle Drawbar Adapter Bore | Ø 1.81 in × 3.09 in DEEP (Ø 46 mm × 78.5 mm DEEP) |
| Sub Spindle Drawbar Bore | Ø 1.03 in × 4.91 in DEEP (Ø 26.2 mm × 124.7 mm DEEP) |
| Sub Spindle Spindle Bore | 2.31 in (58.7 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 | 171 × 90 × 92 in (435 × 229 × 234 cm) |
| Shipping Export Pallet | 171 × 90 × 92 in (435 × 229 × 234 cm) |
| Machine Weight | 14,300 lb (6,487 kg) |
Haas Automation publishes a list price of US$104,995 for the Haas ST-35 (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-35#price; the request is passed to Haas Automation or an authorised dealer.
Only in the spindle and workholding. The ST-30 has a 10 in (254 mm) chuck, an A2-6 nose, a 3.5 in (88.9 mm) bore, 3 in (76 mm) of bar capacity, 30 hp (22.4 kW), 300 ft-lbf (407 N·m) at 500 rpm and 3,400 rpm. The ST-35 has a 12 in (305 mm) chuck, an A2-8 nose, a 4.62 in (117.3 mm) bore, 4 in (102 mm) of bar capacity, 40 hp (29.8 kW), 425 ft-lbf (576 N·m) at 325 rpm and 3,200 rpm. Turning diameter, turning length and X travel are the same on both.
Low-speed torque. Without it the spindle peaks at 425 ft-lbf (576 N·m) at 325 rpm. With the gearbox the table gives 1,400 ft-lbf (1,898 N·m) at 150 rpm. That matters on parts near the 15 in (381 mm) turning limit, where the right surface speed is reached at low rpm and the cut needs torque more than speed.
Yes, as an option. The sub-spindle rows in the table describe a 6.5 in (165 mm) chuck on an A2-5 nose, 4,100 rpm maximum and synchronised running with the main spindle up to 3,200 rpm. Its bore is 2.31 in (58.7 mm), the integrated brake holds 17 ft-lbf (23 N·m), orientation accuracy is ± 0.02° and it rapids at 400 ipm (10 m/min). None of that is on the base machine.
A 12-station BOT turret. Haas lists it as taking any combination of OD and ID tools, with the note that this varies with the turret, and gives 4 in (102 mm) of rear clearance for boring bars. The table also quotes a 13.75 in (349 mm) maximum turning diameter with a BMT65 turret, against 15 in (381 mm) as listed for the base machine.
Three-phase power at either 220 VAC and 70 A or 440 VAC and 35 A. Compressed air consumption is 4 scfm at 100 psi (113 L/min at 6.9 bar), and supply pressure must not fall below 80 psi (5.5 bar). The coolant tank holds 55 gal (208 L).
