Haas SB-35

$90,000 - $115,000 Updated 2026-03-12

Key Specifications

Max Spindle

2500

Spindle Taper

A2-8

Tool Capacity

12 Stations

Weight

8,618 kg (19,000 lb)

Spindle Power

40.0 hp

max cutting diameter

13.50 in

Overview

The Haas SB-35 is the larger box-way turning center in the Haas SB lineup. With a 305 mm (12 in) chuck, 89 mm (3.5 in) bar capacity, and box-way construction, it targets heavy-duty production turning where rigidity and vibration damping take priority over linear-guide speed.

The spindle delivers 29.8 kW (40 hp) at up to 2,500 RPM on an A2-8 spindle nose. Torque is 542 Nm (400 ft-lb) at 500 RPM standard, with the optional gearbox pushing to 1,898 Nm (1,400 ft-lb) at 150 RPM. The A2-8 nose and 12-inch chuck handle larger workpieces than the SB-28, including flanges, housings, and heavy castings up to 406 mm (16 in) cutting diameter. Max cutting length is 1,016 mm (40 in), giving you a long bed for shaft work.

The hardened and ground box ways are the defining feature. Compared to the linear-guide ST-35, the SB-35 provides significantly better damping on heavy interrupted cuts, deeper depths of cut without chatter onset, and more consistent surface finish on tough materials. The trade-off is slower rapids: 400 IPM in X and 600 IPM in Z versus the ST-35's 472/945 IPM. In production scenarios dominated by cutting time rather than rapid time, the SB-35 often delivers equal or better cycle times because you can push harder.

The 12-station turret handles turning operations without live tooling in the base configuration. Like the SB-28, this is a turning-focused machine. The SB-35Y variant adds Y-axis and live tooling for shops that want both box-way rigidity and milling capability.

At $90,000-$115,000 configured, the SB-35 competes with the Doosan Puma 3100 series and Okuma LB4000 EX II. It delivers heavy-duty box-way turning at a Haas price point, with the advantage of the HFO service network for parts and support. Popular in oil and gas, heavy equipment, and shops running demanding materials where cut quality matters more than rapid traverse speed. Specs sourced from Haas Automation published data.

Full Specifications

Parameter	Value
Max Cutting Diameter	13.50 in
Max Cutting Length	30.0 in
Max Swing Over Front Apron	838 mm (33 in)
Max Swing Over Cross Slide	559 mm (22 in)
Max Spindle Speed	2500
Spindle Motor Power	40.0 hp
Spindle Torque	542 Nm (400 ft-lb) @ 500 RPM
Spindle Torque Optional Gearbox	1,898 Nm (1,400 ft-lb) @ 150 RPM
Spindle Nose	A2-8
Spindle Bore	4.13 in
Chuck Size	12.0 in
Bar Capacity	3.50 in
X Axis Travel	318 mm (12.5 in)
Z Axis Travel	1,016 mm (40 in)
Rapid Traverse X	10.2 m/min (400 IPM)
Rapid Traverse Z	15.2 m/min (600 IPM)
Tool Capacity	12 Stations
Way Type	Hardened and ground box ways
Coolant Capacity	100 gal
Machine Weight	8,618 kg (19,000 lb)
CNC Control	Haas Next Generation Control (NGC)
Capacities	S.A.E
Max Part Swing	23.6 in
Between Centers Max	39.2 in
Travels	S.A.E
X Axis	9.00 in
Z Axis	32.30 in
Feedrates	S.A.E
Rapids On X	630 ipm
Rapids On Z	787 ipm
Axis Motors	S.A.E
Max Thrust X	7780 lbf
Max Thrust Z	7780 lbf
Spindle	S.A.E
Spindle Taper	A2-8
Max Rating	40.0 hp
Max Speed	4000 rpm
Max Torque	425.0 ft-lbf @ 325 rpm
Draw Tube Bore	3.58 in
Main Spindle C Axis	S.A.E
Control Type	Interpolated Motion and Positioning
Tailstock	S.A.E
Taper	MT5
Hydraulic Quill Travel	4.7 in
Travel	23.6 in
Turret	S.A.E
Od Vs Id Tools	Any Combination (will vary with turret)
Boring Bar Rear Clearance	2.00 in
Live Tooling	S.A.E
Tooling	BMT65
General	S.A.E
Air Requirements	S.A.E
Air Required	4 scfm @ 100 psi
Inline Air Hose	3/8 in
Coupler	3/8 in
Air Pressure Min	80 psi
Electrical Specification	S.A.E
Drive System	Direct Speed, Belt Drive
Input Ac Voltage Low	220 VAC
Full Load Amps Low	70 A
Input Ac Voltage High	440 VAC
Full Load Amps High	35 A
Dimensions Shipping	S.A.E
Domestic Pallet	191.0 in x 90.0 in x 84.0 in
Export Pallet	191.0 in x 90.0 in x 84.0 in
Machine Weight	14920 lb

Specifications sourced from haascnc.com — verified 2026-03-28

Strengths & Limitations

Strengths

Box-way construction provides the best vibration damping and rigidity in the Haas turning center lineup for heavy cutting
40 hp spindle with optional 1,400 ft-lb gearbox handles the toughest roughing operations in stainless, Inconel, and alloy steels
1,016 mm (40 in) cutting length handles long shaft work, cylinders, and extended components
12-inch chuck on A2-8 nose securely clamps large-diameter flanges, housings, and castings up to 16 inches
89 mm (3.5 in) bar capacity covers larger stock sizes than the SB-28 for through-spindle bar work
19,000 lb machine mass provides outstanding thermal stability for tight-tolerance production
Priced below comparable Okuma and Doosan box-way turning centers in the same size class

Limitations

2,500 RPM max spindle speed is the lowest in the Haas lathe lineup, limiting surface speed on small-diameter and aluminum work
Slower rapids at 400/600 IPM add non-cutting time compared to linear-guide ST-series machines
No live tooling or Y-axis in the base configuration limits the SB-35 to turning-only operations
Box ways require more diligent lubrication maintenance than linear guides to prevent premature wear
Large footprint and 19,000 lb weight require reinforced flooring and careful space planning

Best For

Heavy-duty production turning in tough materials where cut quality and rigidity outweigh rapid speed Oil and gas shops machining large flanges, valve bodies, and pipe fittings from stainless and alloy steels Long shaft turning up to 40 inches in length on pump shafts, cylinders, and drive components Defense and aerospace applications in demanding materials like Inconel, titanium, and hardened alloys Shops replacing older large box-way lathes that need modern CNC control at a competitive price Heavy equipment manufacturers turning castings and forgings with aggressive roughing parameters

Frequently Asked Questions

01 What does a new Haas SB-35 cost?

Base price starts around $90,000. With tailstock, gearbox, chip conveyor, and high-pressure coolant, configured price runs $100,000-$115,000. The gearbox at roughly $5,000 is strongly recommended for shops working in tough materials.

02 What is the difference between the SB-35 and the SB-28?

The SB-35 steps up to a 12-inch chuck (from 10-inch), A2-8 nose (from A2-6), 3.5-inch bar capacity (from 2.9-inch), and 40-inch cutting length (from 28-inch). The SB-35 has a lower 2,500 RPM max speed versus 3,200 RPM. Same 40 hp spindle and box-way construction.

03 How does the SB-35 compare to the ST-35Y?

The SB-35 uses box ways for rigidity; the ST-35Y uses linear guides for speed plus adds Y-axis and live tooling. The SB-35 is for heavy turning. The ST-35Y is for turning and milling in one setup. The ST-35Y costs about $35,000-$40,000 more.

04 Do box ways last longer than linear guides?

Box ways can last decades with proper lubrication and maintenance. Linear guides have predictable service life based on load and speed ratings. In heavy-cutting applications, box ways often outlast linear guides because they handle higher loads and shock better.

05 Can I add live tooling to the SB-35 later?

No. The SB-35Y with Y-axis and live tooling is a separate machine configuration. If you anticipate needing milling capability, order the SB-35Y from the start. It cannot be retrofitted from a base SB-35.