The Haas Automation ST-45S 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-45S: short-bed large-bore lathe with a 7 in (178 mm) spindle bore, 30 in turning diameter, 28 in Z travel and 1,400 ft-lbf at 150 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 | 1,400 RPM |
| Spindle Motor Rating | 40.0 kW |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 20,400 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 | 28 in (711 mm) |
| Bar Capacity With Opt Workholding | 6.5 in (165 mm) |
| X-Axis Travel | 20 in (508 mm) |
| Z-Axis Travel | 28 in (711 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 | 26 in (660 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 × 94.5 × 116 in (550 × 240 × 295 cm) |
| Shipping Export Crate | 216.5 × 96 × 120 in (550 × 244 × 305 cm) |
| Machine Weight | 20,400 lb (9,253 kg) |
Haas Automation publishes a list price of US$162,995 for the Haas ST-45S (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-45s#price; the request is passed to Haas Automation or an authorised dealer.
The spindle. Both machines have 20 in (508 mm) of X travel, 28 in (711 mm) of Z travel, a 30 in (762 mm) maximum turning diameter and a 40 hp (29.8 kW) spindle rated 1,400 ft-lbf (1,898 N·m) at 150 rpm. The ST-40S has an A2-8 nose, a 4.62 in (117.3 mm) bore and a 2,400 rpm top speed. The ST-45S has an A2-11 nose, a 7 in (178 mm) bore and a 1,400 rpm top speed.
Bar capacity is 6.5 in (165 mm) with optional workholding. The spindle bore itself is 7 in (178 mm), but the 18 in (457 mm) chuck kit listed as an option has a 6.5 in draw tube bore, and that is the figure that limits stock passing through the chuck. The kit is rated to 1,400 rpm, the same as the spindle.
It raises the spindle rating from 40 hp (29.8 kW) to 55 hp (41 kW) and peak torque from 1,400 ft-lbf (1,898 N·m) to 2,100 ft-lbf (2,847 N·m), both at 150 rpm. Maximum speed stays at 1,400 rpm and the drive is still a 2-speed gearbox. Full-load current rises to 105 A at 220 VAC or 53 A at 440 VAC.
The base machine needs 220 VAC three-phase at 70 A or 440 VAC three-phase at 35 A. Air consumption is 4 scfm at 100 psi (113 L/min at 6.9 bar), with a minimum supply pressure of 80 psi (5.5 bar) through a 3/8 in hose and coupler. Coolant capacity is 95 gal (360 L).
Haas lists a shipping weight of 20,400 lb (9,253 kg). The domestic pallet is 216.5 × 94.5 × 116 in (550 × 240 × 295 cm) and the export crate is 216.5 × 96 × 120 in (550 × 244 × 305 cm). These are shipping dimensions, not the installed floor space, so ask for the layout drawing before deciding where the machine goes.
