The Haas Automation ST-45 is an industrial-grade CNC Lathes & Turning Centers powered by the Standard CNC. a top spindle speed of 1,400 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Haas ST-45: 7 in (178 mm) spindle bore, A2-11 nose, 30 in turning diameter, 44 in length, 1,400 ft-lbf at 150 rpm, 1,400 rpm maximum.
| 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 | 1,400 RPM |
| Spindle Motor Rating | 40.0 kW |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 20,800 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Chuck Optional | 18 in (457 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 With Opt Workholding | 6.5 in (165 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 | A2-11 |
| Spindle Drive | 2-Speed Gearbox |
| Spindle Motor Power | 40 hp (29.8 kW) |
| Max Spindle Speed | 1,400 rpm |
| Spindle Torque | 1,400 ft-lbf @ 150 rpm (1,898 N·m @ 150 rpm) |
| Spindle Bore | 7 in (178 mm) |
| Xp Option Drive System | 2-Speed Gearbox |
| Xp Option Max Rating | 55 hp (41 kW) |
| Xp Option Max Speed | 1,400 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 |
| Pc18kit Chuck Size | 18 in (457 mm) |
| Pc18kit Max Speed | 1,400 rpm |
| Pc18kit Draw Tube Bore | 6.5 in (165 mm) |
| 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 | 217 × 96 × 116 in (551 × 244 × 295 cm) |
| Shipping Export Crate | 217 × 98 × 120 in (551 × 249 × 305 cm) |
| Machine Weight | 20,800 lb |
| Machine Weight Export Crate | 22,100 lb (10,024 kg) |
Haas Automation publishes a list price of US$187,995 for the Haas ST-45 (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-45#price; the request is passed to Haas Automation or an authorised dealer.
The spindle bore is 7 in (178 mm). Bar capacity is listed as 6.5 in (165 mm) with optional workholding, which matches the 6.5 in (165 mm) draw tube bore shown for the 18 in (457 mm) chuck kit. Treat 6.5 in as the working figure unless Haas confirms a different workholding arrangement.
They share the 30 in (762 mm) by 44 in (1,118 mm) envelope, 40 hp (29.8 kW) and 1,400 ft-lbf (1,898 N·m) at 150 rpm. The ST-40 has a 4.62 in (117.3 mm) bore, 4 in (102 mm) of bar capacity and 2,400 rpm. The ST-45 has a 7 in (178 mm) bore and 1,400 rpm. Pick the ST-45 only if the material has to go through the larger bore, because the lower top speed is a real handicap on small diameters.
The table does not say. It lists an 18 in (457 mm) chuck as optional, with kit rows showing a 1,400 rpm maximum speed and a 6.5 in (165 mm) draw tube bore, and it gives no chuck size for the base machine. Ask Haas what workholding the starting configuration includes.
It raises spindle output from 40 hp (29.8 kW) and 1,400 ft-lbf (1,898 N·m) to 55 hp (41 kW) and 2,100 ft-lbf (2,847 N·m), both at 150 rpm, with the 2-speed gearbox and the 1,400 rpm limit retained. Full-load current goes from 70 A to 105 A at 220 VAC, or from 35 A to 53 A at 440 VAC.
Tailstock: MT5 taper, 42 in (1,067 mm) of travel, 200 lbf (890 N) minimum and 3,000 lbf (13,345 N) maximum thrust. Turret: 12-station BOT, any combination of OD and ID tools, 4.5 in (114 mm) of rear clearance for boring bars. With a BMT75 turret the maximum turning diameter is 27.5 in (699 mm) instead of 30 in (762 mm).
