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CNC Lathes & Turning Centers Model Year: 2024 MTConnect Standard

Haas Automation ST-45LY

Quick Engineering Summary (AI Overview / Key Facts)

The Haas Automation ST-45LY 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.

Spindle Power 40.0 kW
Tool Capacity Standard
Rapid Traverse Standard
Machine Weight Standard

Engineering Overview & Machining Capabilities

Haas ST-45LY: 7 in (178 mm) bore Y-axis lathe, 80 in turning length, 27.5 in turning diameter, ± 3 in Y travel, 4,000 rpm BMT75 live tools.

Key Structural & Technology Features

• CNC Controller: Standard CNC
• High-rigidity machine structure
• Standardized MTConnect data connectivity
• Precision axis travels and spindle performance

Complete Machine Specifications & Engineering Telemetry

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 80 in (2,032 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 80 in (2,032 mm)
Rapid Traverse X 472 ipm (12 m/min)
Rapid Traverse Y 472 ipm (12 m/min)
Rapid Traverse Z 320 ipm (8.1 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 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
Pc18kit Max Speed 1,400 rpm
Pc18kit Draw Tube Bore 6.5 in (165 mm)
C Axis Speed 49 rpm
C Axis Max Rating 5 hp (3.7 kW)
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)
Tailstock Taper MT5
Tailstock Travel 84.5 in (2,146 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

Haas Automation ST-45LY in Action & Demo

Frequently Asked Questions: Haas ST-45LY

How much does the Haas ST-45LY cost?

Haas Automation publishes a list price of US$321,995 for the Haas ST-45LY (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-45ly#price; the request is passed to Haas Automation or an authorised dealer.

How is the ST-45LY different from the ST-40LY?

Spindle bore and spindle speed. The ST-40LY has an A2-8 nose, a 4.62 in (117.3 mm) bore, 4 in (102 mm) of bar capacity and 2,400 rpm. The ST-45LY has an A2-11 nose, a 7 in (178 mm) bore and 1,400 rpm. Both turn 27.5 in (699 mm) by 80 in (2,032 mm), with ± 3 in (± 76 mm) of Y travel and 4,000 rpm live tools.

How fast do the live tools and the main spindle run?

Live tools run to 4,000 rpm on BMT75 tooling. The main spindle runs to 1,400 rpm and produces 1,400 ft-lbf (1,898 N·m) at 150 rpm from 40 hp (29.8 kW). The XP option rows give 55 hp (41 kW) and 2,100 ft-lbf (2,847 N·m) at 150 rpm at the same 1,400 rpm maximum.

What is the bar capacity of the ST-45LY?

6.5 in (165 mm), and the table qualifies that as being with optional workholding. The spindle bore itself is 7 in (178 mm). The optional chuck is 18 in (457 mm), and its kit rows give a 6.5 in (165 mm) draw tube bore and a 1,400 rpm maximum.

What are the Y-axis and C-axis figures?

Y axis: ± 3 in (± 76 mm) of travel, 472 ipm (12 m/min) rapid, 2,300 lbf (10,231 N) of thrust. C axis: 49 rpm, 5 hp (3.7 kW), 0.01° positioning, with a 21.5 in (546 mm) brake that holds 450 ft-lbf (610 N·m). For comparison, X thrust is 5,500 lbf (24,465 N) and Z thrust 9,000 lbf (40,034 N).

What supply does the ST-45LY need?

The base electrical rows are 70 A at 220 VAC or 35 A at 440 VAC, three-phase. With the XP option the full-load figures are 105 A at 220 VAC or 53 A at 440 VAC. Air consumption is 4 scfm at 100 psi (113 L/min at 6.9 bar) with an 80 psi (5.5 bar) minimum, and coolant capacity is 95 gal (360 L).

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