The Haas Automation ST-45Y 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-45Y: Y-axis large-bore lathe, 44 in (1,118 mm) Z travel, 7 in spindle bore, 12-station BMT75 turret with 4,000 rpm live tools.
| 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 |
| 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 | 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) |
| Y-Axis Travel | ± 3 in (± 76 mm) |
| Z-Axis Travel | 44 in (1,118 mm) |
| Rapid Traverse X | 472 ipm (12 m/min) |
| Rapid Traverse Y | 472 ipm (12 m/min) |
| Rapid Traverse Z | 710 ipm (18 m/min) |
| Max Thrust X | 5,500 lbf (24,465 N) |
| Max Thrust Y | 2,300 lbf (10,231 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 (177.8 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 |
| C Axis Max Rating | 5 hp (3.7 kW) |
| C Axis Speed | 49 rpm |
| C Axis Positioning | 0.01 ° |
| C Axis Brake Diameter | 21.5 in (546 mm) |
| C Axis Brake Holding Torque | 450 ft-lbf (610 N·m) |
| C Axis Control Type | Interpolated Motion and Positioning |
| 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 |
| Turret Od Vs Id Tools | Any Combination (will vary with turret) |
| Turret Index Time | 2 s |
| Turret Boring Bar Rear Clearance From Turret Face | 4.5 in (114 mm) |
| Turret Tooling | BMT75 |
| Live Tool Speed | 4,000 rpm |
| Live Tooling | BMT75 |
| 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 × 239 × 279 cm) |
| Shipping Export Pallet | 216.5 × 98 × 120 in (550 × 249 × 305 cm) |
Haas Automation publishes a list price of US$253,995 for the Haas ST-45Y (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-45y#price; the request is passed to Haas Automation or an authorised dealer.
The ST-40 has X and Z travel only, an A2-8 nose, a 4.62 in (117.3 mm) bore, 2,400 rpm and a 30 in (762 mm) turning diameter. The ST-45Y adds ± 3 in (± 76 mm) of Y, a C axis and 4,000 rpm live tooling, and has an A2-11 nose with a 7 in (177.8 mm) bore, 1,400 rpm and a 27.5 in (699 mm) turning diameter. Z travel is 44 in (1,118 mm) on both.
Haas's feature list names a 12-station BMT75 turret, 4,000 rpm live tooling and full C-axis interpolation, and marks WiFi, HaasDrop wireless file transfer, Safe Run and HaasConnect remote monitoring as standard. The 24-station half-index turret and the Auto Door are optional. In the spec table the 18 in (457 mm) chuck and the 55 hp (41 kW) XP spindle package are options too.
Y travel is ± 3 in (± 76 mm) with 2,300 lbf (10,231 N) of thrust. The C axis is rated 5 hp (3.7 kW), runs to 49 rpm and positions to 0.01°, with interpolated motion and positioning. Its brake measures 21.5 in (546 mm) across and holds 450 ft-lbf (610 N·m). Live tools on the BMT75 turret run to 4,000 rpm.
Maximum turning length and Z travel are 44 in (1,118 mm). The tailstock has an MT5 taper and 42 in (1,067 mm) of travel, with thrust from 200 lbf (890 N) to 3,000 lbf (13,345 N). Longer stock can extend back through the 7 in (177.8 mm) spindle bore, within the 6.5 in (165 mm) bar capacity that applies with optional workholding.
The base spindle is 40 hp (29.8 kW) with 1,400 ft-lbf (1,898 N·m) at 150 rpm, on 70 A at 220 VAC or 35 A at 440 VAC. The XP option is 55 hp (41 kW) with 2,100 ft-lbf (2,847 N·m) at 150 rpm, and its full-load figures are 105 A at 220 VAC or 53 A at 440 VAC. Top speed is 1,400 rpm either way, through a 2-speed gearbox.
