The Haas Automation ST-40 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 2,400 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Haas ST-40: 30 in (762 mm) turning diameter, 44 in turning length, 15 in chuck, 40 hp gearbox spindle with 1,400 ft-lbf at 150 rpm, 2,400 rpm.
| 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 | 2,400 RPM |
| Spindle Motor Rating | 40.0 kW |
| Spindle Taper Interface | Standard |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Chuck Size | 15 in (381 mm) |
| Max Swing | 35.5 in (902 mm) |
| Max Turning Diameter | 30 in (762 mm) |
| Max Turning Diameter With Bmt75 Turret | 27.5 in (699 mm) |
| Max Turning Length | 44 in (1,118 mm) |
| Bar Capacity | 4 in (102 mm) |
| X-Axis Travel | 20 in (508 mm) |
| Z-Axis Travel | 44 in (1,118 mm) |
| Rapid Traverse | 710 ipm (18 m/min) |
| Max Thrust X | 5,500 lbf (24,465 N) |
| Max Thrust Z | 9,000 lbf (40,034 N) |
| Spindle Nose | A2-8 |
| Spindle Drive | 2-Speed Gearbox |
| Spindle Motor Power | 40 hp (29.8 kW) |
| Max Spindle Speed | 2,400 rpm |
| Spindle Torque | 1,400 ft-lbf @ 150 rpm (1,898 N·m @ 150 rpm) |
| Spindle Bore | 4.62 in (117.3 mm) |
| Xp Option Drive System | 2-Speed Gearbox |
| Xp Option Max Rating | 55 hp (41 kW) |
| Xp Option Max Speed | 2,400 rpm |
| Xp Option Max Torque | 2,100 ft-lbf @ 150 rpm (2,847 N·m @ 150 rpm) |
| Xp Option Input Ac Voltage Low | 220 VAC |
| Xp Option Full Load Amps Low | 105 A |
| Xp Option Input Ac Voltage High | 440 VAC |
| Xp Option Full Load Amps High | 53 A |
| Tailstock Taper | MT5 |
| Tailstock Travel | 42 in (1,067 mm) |
| Tailstock Max Thrust Acme | 3,000 lbf (13,345 N) |
| Tailstock Min Thrust Acme | 200 lbf (890 N) |
| Turret Stations | 12-Station BOT |
| Turret Od Vs Id Tools | Any Combination (will vary with turret) |
| Turret Boring Bar Rear Clearance | 4.5 in (114 mm) |
| Turret Tooling | BOT |
| Coolant Capacity | 95 gal (360 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 | 216.5 × 94.3 × 110 in (550 × 240 × 279 cm) |
| Shipping Export Pallet | 216.5 × 98 × 120 in (550 × 249 × 305 cm) |
| Machine Weight Export Crate | 21,740 lb (9,861 kg) |
Haas Automation publishes a list price of US$175,995 for the Haas ST-40 (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-40#price; the request is passed to Haas Automation or an authorised dealer.
1,400 ft-lbf (1,898 N·m) at 150 rpm, from a 40 hp (29.8 kW) motor driving through a 2-speed gearbox. Maximum speed is 2,400 rpm. The spindle nose is A2-8 and the bore is 4.62 in (117.3 mm).
A higher-output spindle package listed in the table. It keeps the 2-speed gearbox and the 2,400 rpm maximum and raises the rating to 55 hp (41 kW) and 2,100 ft-lbf (2,847 N·m) at 150 rpm. Full-load current rises with it, to 105 A at 220 VAC or 53 A at 440 VAC, so the building supply has to be sized for the option, not for the base machine.
In bed length. The ST-40S turns 28 in (711 mm) long, the ST-40 turns 44 in (1,118 mm) and the ST-40L turns 80 in (2,032 mm). All three turn 30 in (762 mm) in diameter with a 15 in (381 mm) chuck, 40 hp (29.8 kW), 2,400 rpm and 1,400 ft-lbf (1,898 N·m) at 150 rpm. The ST-40L's Z rapid is 320 ipm (8.1 m/min), where the ST-40 and ST-40S rapid at 710 ipm (18 m/min).
The table lists an MT5 taper, 42 in (1,067 mm) of travel, and thrust ranging from a minimum of 200 lbf (890 N) to a maximum of 3,000 lbf (13,345 N). The low end of that range is useful for thin-walled or slender parts that a heavy push would distort.
Yes. The 12-station BOT turret in the table gives the full 30 in (762 mm) maximum turning diameter. The table also quotes 27.5 in (699 mm) as the maximum with a BMT75 turret. Rear clearance for boring bars is 4.5 in (114 mm).
