Haas Automation CNC Lathes / Turning Centers

Haas ST-45LY

List US$321,995 Specs verified 2026-10-02 · haascnc.com Updated 2026-10-02

Image: haascnc.com, Haas Automation

Key Specifications

X Travel

20 in (508 mm)

Y Travel

± 3 in (± 76 mm)

Z Travel

80 in (2,032 mm)

Max Spindle

1,400 rpm

Spindle Power

40 hp (29.8 kW)

Max Turn Length

80 in (2,032 mm)

How much does the Haas ST-45LY cost?

Manufacturer list price

US$321,995

As published by Haas Automation, verified 2026-10-02. Options, tooling, freight and installation are extra.

Overview

The Haas ST-45LY brings together a 7 in (178 mm) spindle bore, an 80 in (2,032 mm) bed, a Y axis with ± 3 in (± 76 mm) of travel and BMT75 live tooling. Maximum turning diameter is 27.5 in (699 mm) and the main spindle runs to 1,400 rpm.

One speed relationship deserves attention. The live tools reach 4,000 rpm while the main spindle stops at 1,400 rpm, so drilling and milling with driven tools are not held back by the slow, large-bore headstock. Turning is another matter: at 1,400 rpm, surface speed falls away quickly as diameter drops, so small turned diameters are the weak spot.

Typical work is large tubular or shaft-type parts with features off the centreline: ports and cross-holes in a pipe body, flats and keyways on a long shaft, a bolt pattern on an end flange. The C axis positions to 0.01° at up to 49 rpm, rated 5 hp (3.7 kW), and its 21.5 in (546 mm) brake holds 450 ft-lbf (610 N·m). Y thrust is 2,300 lbf (10,231 N). The 12-station BMT75 turret indexes in 2 s.

The ST-40LY is the equivalent machine with a 4.62 in (117.3 mm) bore and 2,400 rpm; travels, Y stroke and the 27.5 in (699 mm) turning diameter are the same. As on that machine, X and Y rapid at 472 ipm (12 m/min) and Z at 320 ipm (8.1 m/min).

Workholding decides the real through-capacity. An 18 in (457 mm) chuck is listed as optional, and bar capacity with optional workholding is 6.5 in (165 mm). Spindle torque is 1,400 ft-lbf (1,898 N·m) at 150 rpm from 40 hp (29.8 kW), with an XP option at 55 hp (41 kW) and 2,100 ft-lbf (2,847 N·m). Haas lists a starting price of US$321,995. No weight or shipping size is given in the table for this model.

Full Specifications

Parameter	Value
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 Service (low voltage)	220 VAC 3-phase, 70 A
Electrical Service (high voltage)	440 VAC 3-phase, 35 A

Specifications sourced from haascnc.com — verified 2026-10-02

Strengths & Limitations

Strengths

7 in (178 mm) bore, Y axis and live tooling in one machine
Live tools run to 4,000 rpm, well above the 1,400 rpm main spindle
± 3 in (± 76 mm) Y travel with 2,300 lbf (10,231 N) of thrust
80 in (2,032 mm) turning length and an MT5 tailstock with 84.5 in (2,146 mm) of travel
C-axis brake: 21.5 in (546 mm) diameter, 450 ft-lbf (610 N·m) holding torque

Limitations

Main spindle is limited to 1,400 rpm; the ST-40LY runs to 2,400 rpm
The 18 in (457 mm) chuck is optional, and the 6.5 in (165 mm) bar capacity depends on optional workholding
Rapids are 472 ipm (12 m/min) on X and Y and 320 ipm (8.1 m/min) on Z
The table carries no machine weight or shipping dimensions for this model

Best For

Large pipe and tube bodies with cross-holes and ports Long shafts up to 80 in (2,032 mm) with keyways and flats Through-spindle stock up to 6.5 in (165 mm) that also needs milling Parts up to 27.5 in (699 mm) in diameter machined complete on one machine

Frequently Asked Questions

01 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.

02 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.

03 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.

04 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).

05 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).