Haas Automation CNC Lathes / Turning Centers

Haas SB-28Y

List US$143,995 Specs verified 2026-10-02 · haascnc.com Updated 2026-10-02

Image: haascnc.com, Haas Automation

Key Specifications

X Travel

8.1 in (206 mm)

Y Travel

± 2 in (± 50 mm)

Z Travel

20.7 in (525 mm)

Max Spindle

3,200 rpm

Spindle Power

40 hp (29.8 kW)

Max Turn Length

18.5 in (470 mm)

How much does the Haas SB-28Y cost?

Manufacturer list price

US$143,995

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

Overview

The Haas SB-28Y is a Y-axis turning center with a 10 in (254 mm) chuck, 2.9 in (74 mm) of bar capacity and a 40 hp (29.8 kW), 3,200 rpm spindle on an A2-8 nose. The turret has 12 stations with BMT65 live tooling at 4,000 rpm, and Y travel is ±2 in (±50 mm).

The axis thrust figures stand out. X and Z are each rated 7,780 lbf (34,607 N), and Y 4,490 lbf (19,972 N). Paired with 425 ft-lbf (576 N·m) of spindle torque at 325 rpm, that is a machine set up to push large drills and take deep roughing cuts. A gearbox with 1,400 ft-lbf (1,898 N·m) at 150 rpm is listed as an option for work that needs still more torque at low speed.

Adding the Y axis costs some turning envelope. The SB-28Y turns 12 in (305 mm) in diameter and 18.5 in (470 mm) in length, with 8.1 in (206 mm) of X and 20.7 in (525 mm) of Z. The SB-28, without Y, turns 13.5 in (345 mm) by 21.3 in (540 mm) on 9 in (230 mm) of X and 23.2 in (590 mm) of Z. Rapids are moderate at 472 ipm in X, 283 ipm (7.2 m/min) in Y and 787 ipm (20 m/min) in Z.

For milling, the C axis positions to 0.01° and interpolates, turns at up to 60 rpm and is held by a brake rated 250 ft-lbf (339 N·m). The C-axis rating is given as 5 hp (3.7 kW). Haas's table gives no power or torque for the live tools themselves, so ask for those before planning heavy milling. The table also lists an MT5 tailstock with 17.7 in (450 mm) of travel and 29.3 in (743 mm) between centers.

Haas lists a starting price of US$143,995. The machine ships at 13,960 lb (6,332.3 kg) on a 179 × 90 × 98 in (455 × 229 × 249 cm) pallet.

Full Specifications

Parameter	Value
Chuck Size	10 in (254 mm)
Max Swing	23.6 in (600 mm)
Max Turning Diameter	12 in (305 mm)
Max Turning Length	18.5 in (470 mm)
Bar Capacity	2.9 in (74 mm)
Distance Between Centers	29.3 in (743 mm)
X-Axis Travel	8.1 in (206 mm)
Y-Axis Travel	± 2 in (± 50 mm)
Z-Axis Travel	20.7 in (525 mm)
Rapid Traverse X	472 ipm
Rapid Traverse Y	283 ipm (7.2 m/min)
Rapid Traverse Z	787 ipm (20 m/min)
Max Thrust X	7,780 lbf (34,607 N)
Max Thrust Y	4,490 lbf (19,972 N)
Max Thrust Z	7,780 lbf (34,607 N)
Spindle Nose	A2-8
Spindle Motor Power	40 hp (29.8 kW)
Max Spindle Speed	3,200 rpm
Spindle Torque	425 ft-lbf @ 325 rpm (576 N·m @ 325 rpm)
Spindle Torque (optional gearbox)	1,400 ft-lbf @ 150 rpm (1,898 N·m @ 150 rpm)
Draw Tube Bore	2.95 in (75 mm)
Spindle Bore	3.39 in (86 mm)
C Axis Speed	60 rpm
C Axis Max Rating	5 hp (3.7 kW)
C Axis Positioning	0.01 °
C Axis Brake Diameter	13.9 in (353 mm)
C Axis Brake Holding Torque	250 ft-lbf (339 N·m)
C Axis Control Type	Interpolated Motion and Positioning
Tailstock Taper	MT5
Tailstock Travel	17.7 in (450 mm)
Turret Stations	12
Turret OD Vs ID Tools	Any Combination (will vary with turret)
Turret Boring Bar Rear Clearance	2 in (51 mm)
Live Tool Speed	4,000 rpm
Live Tooling	BMT65
Coolant Capacity	40 gal (151 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
Shipping Domestic Pallet	179 × 90 × 98 in (455 × 229 × 249 cm)
Shipping Export Pallet	179 × 90 × 98 in (455 × 229 × 249 cm)
Machine Weight	13,960 lb (6,332.3 kg)

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

Strengths & Limitations

Strengths

X and Z thrust of 7,780 lbf (34,607 N) each for heavy drilling and roughing
40 hp (29.8 kW) spindle with 425 ft-lbf (576 N·m) at 325 rpm on an A2-8 nose
Y axis of ±2 in (±50 mm) with 4,490 lbf (19,972 N) of thrust for off-centre milling and drilling
12-station turret with BMT65 live tooling at 4,000 rpm
C-axis brake holds 250 ft-lbf (339 N·m) on a 13.9 in (353 mm) brake diameter
MT5 tailstock with 17.7 in (450 mm) of travel is in the listed figures

Limitations

Turning envelope is 12 in (305 mm) by 18.5 in (470 mm), smaller than the 13.5 in (345 mm) by 21.3 in (540 mm) of the SB-28
Y rapid is 283 ipm (7.2 m/min) and X rapid 472 ipm
The 1,400 ft-lbf (1,898 N·m) gearbox is an option, not part of the base machine
No power or torque figure is listed for the live tools
Spindle speed tops out at 3,200 rpm, which limits surface speed on small diameters

Best For

Heavy turning of steel parts up to 12 in (305 mm) in diameter Parts needing off-centre milled or drilled features within ±2 in (±50 mm) of Y Bar work up to 2.9 in (74 mm) Shafts supported by the MT5 tailstock within 18.5 in (470 mm) of turning length

Frequently Asked Questions

01 What does the Y axis on the SB-28Y allow?

Y travel is ±2 in (±50 mm), with 4,490 lbf (19,972 N) of thrust and a 283 ipm (7.2 m/min) rapid. Together with BMT65 live tooling at 4,000 rpm and a C axis that positions to 0.01°, it lets flats, keyways and off-centre holes be machined in the turning setup instead of on a mill.

02 How does the SB-28Y differ from the SB-28?

The SB-28 has no Y axis and a larger turning envelope: 13.5 in (345 mm) in diameter and 21.3 in (540 mm) in length, with 9 in (230 mm) of X, 23.2 in (590 mm) of Z and a 630 ipm (16 m/min) X rapid, at a shipping weight of 12,600 lb (5,715.4 kg). The SB-28Y turns 12 in (305 mm) by 18.5 in (470 mm) and ships at 13,960 lb (6,332.3 kg). Chuck, bar capacity, spindle and bore are the same.

03 How much spindle torque does the SB-28Y have?

The base spindle is rated 40 hp (29.8 kW) with 425 ft-lbf (576 N·m) at 325 rpm and a 3,200 rpm top speed. Haas lists an optional gearbox that raises torque to 1,400 ft-lbf (1,898 N·m) at 150 rpm. The spindle bore is 3.39 in (86 mm) and the draw tube bore 2.95 in (75 mm).

04 SB-28Y or SB-35Y?

The SB-35Y is the larger-bore machine: a 12 in (305 mm) chuck, 3.5 in (90 mm) of bar capacity, a 4.13 in (105 mm) spindle bore and 27.5 in (700 mm) of turning length, with a 2,500 rpm spindle. The SB-28Y has a 10 in (254 mm) chuck, 2.9 in (74 mm) of bar capacity, 18.5 in (470 mm) of turning length and 3,200 rpm. Maximum turning diameter is 12 in (305 mm) on both.

05 What are the installation requirements?

Power is 220 VAC three-phase at 70 A or 440 VAC three-phase at 35 A. Air is 4 scfm at 100 psi (113 L/min at 6.9 bar), with an 80 psi (5.5 bar) minimum. Coolant capacity is 40 gal (151 L). Shipping weight is 13,960 lb (6,332.3 kg) on a 179 × 90 × 98 in (455 × 229 × 249 cm) pallet, which is the shipping size and not the installed size.