Haas ST-35L

$90,000 - $125,000 Updated 2026-03-19

Key Specifications

Max Spindle

3,200 RPM

Spindle Taper

A2-8

Tool Capacity

12 Stations

Spindle Power

40.0 hp

max swing over front apron

806 mm (31.75 in)

max swing over cross slide

527 mm (20.75 in)

Overview

The Haas ST-35L is the long-bed variant of the big-bore ST-35, extending the Z-axis to 1,016 mm (40 in) for long shafts, pipe, and large-bore tube work. It retains the ST-35's 29.8 kW (40 hp) spindle, 102 mm (4 in) bar capacity, 305 mm (12 in) chuck, and A2-8 spindle nose on the large-frame ST-30 platform.

The spindle delivers 576 Nm (425 ft-lb) of torque at 325 RPM, topping out at 3,200 RPM. The 117.3 mm (4.62 in) spindle bore comfortably handles 4-inch bar and tube stock. Max cutting envelope is 381 mm (15 in) diameter by 1,016 mm (40 in) length — matching the ST-30L's bed length with the ST-35's big-bore spindle.

Axis travels are 318 mm (12.5 in) in X and 1,016 mm (40 in) in Z with rapids at 24 m/min (945 ipm) on both axes. The 806 mm (31.75 in) swing provides clearance for larger chucks and fixtures. The 12-station BOT turret with 102 mm boring bar rear clearance handles large boring tools.

The ST-35L fills the gap between the mid-size ST-28L and the massive ST-40/ST-45 platforms for shops turning longer parts in 4-inch bar stock. Oil and gas component manufacturers, hydraulic cylinder shops, and heavy industrial producers running large-bore long work get serious capability without the weight and cost of the ST-40 frame.

At roughly $90,000-$125,000 configured, the ST-35L delivers 40 hp, 4-inch bore, and 40-inch Z-travel on the proven large-frame platform. The NGC control, HFO service network, and consistent Haas operator experience keep training and support straightforward.

Full Specifications

Parameter	Value
Max Swing Over Front Apron	806 mm (31.75 in)
Max Swing Over Cross Slide	527 mm (20.75 in)
Max Cutting Diameter	13.75 in
Max Cutting Length	62.5 in
Chuck Size	12.0 in
Bar Capacity	4.00 in
Spindle Nose	A2-8
Spindle Bore	4.62 in
Max Spindle Speed	3,200 RPM
Spindle Motor Power	40.0 hp
Spindle Torque	576 Nm (425 ft-lb) @ 325 RPM
X Axis Travel	318 mm (12.5 in)
Z Axis Travel	1,016 mm (40 in)
Rapid Traverse X	24 m/min (945 ipm)
Rapid Traverse Z	24 m/min (945 ipm)
Max Thrust X	4100 lbf
Max Thrust Z	5100 lbf
Tool Capacity	12 Stations
Boring Bar Clearance	102 mm (4 in)
Coolant Capacity	55 gal
CNC Control	Haas Next Generation Control (NGC)
Capacities	S.A.E
Max Part Swing	21.0 in
Between Centers Max	62.5 in
Travels	S.A.E
X Axis	9.40 in
Z Axis	62.50 in
Feedrates	S.A.E
Rapids On X	945 ipm
Rapids On Z	945 ipm
Axis Motors	S.A.E
Spindle	S.A.E
Spindle Taper	A2-8
Max Rating	40.0 hp
Max Speed	3200 rpm
Max Torque	425.0 ft-lbf @ 325 rpm
Max Torque W Opt Gearbox	1400 ft-lbf @ 150 rpm
Turret	S.A.E
Od Vs Id Tools	Any Combination (will vary with turret)
Boring Bar Rear Clearance	4.00 in
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	202.0 in x 90.0 in x 92.0 in
Export Pallet	202.0 in x 90.0 in x 92.0 in
Machine Weight	13500 lb
Footrpint Without Conveyor	4750 x 1778 x 2007 mm
Maximum Part Swing	533 mm
Bar Capacity Maximum Spindle Speed	4.0", 3200-rpm
Maximum Power Rating Drive System	22.4 kW, Belt-Drive
Spindle Nose Chuck Size	A2-8, 305 mm
Maximum Cutting Diameter	349 mm
Maximum Cutting Length	1587 mm
Axis Travels	239 mm,1587 mm
Y Axis Models Axis Travels	239 mm, 101 mm,1587 mm
Bar Capacity Maximum Speed	102 mm, 3200-rpm

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

Strengths & Limitations

Strengths

1,016 mm (40 in) Z-axis travel with 4-inch bore handles long pipe, tube, and shaft work that the ST-28L cannot reach
40 hp spindle with 425 ft-lb of torque provides heavy roughing power on long, large-bore workpieces
Large-frame platform with 806 mm swing provides superior rigidity compared to mid-size ST-28L frame
12-inch chuck on A2-8 nose matches the ST-28L's workholding on a significantly longer and more rigid bed
102 mm boring bar rear clearance handles large boring tools without turret interference on long-reach work
At $90-125K configured, costs significantly less than the ST-40 while providing 4-inch bore on a 40-inch bed

Limitations

3,200 RPM max spindle speed limits surface speeds on small-diameter work and aluminum finishing
Large-frame platform takes substantially more floor space than the mid-size ST-28L
No gearbox option for extreme low-speed torque unlike the ST-30 and ST-40 platforms
BOT turret rigidity trails BMT tooling on Y-axis variants for live tooling applications

Best For

Long pipe and tube machining in oil and gas requiring 4-inch bore and 40-inch turning length Hydraulic cylinder manufacturers machining longer cylinders that exceed the ST-28L's 32-inch Z-travel Heavy-duty shaft turning in carbon steel and alloy steel on large-bore, long-bed work Shops needing the ST-35's 40 hp and 4-inch bore on a 40-inch bed without the ST-40's heavier frame Production facilities running large-bore long parts where the mid-size ST-28L lacks rigidity

Frequently Asked Questions

01 What does a new Haas ST-35L cost?

Base price starts around $90,000. Adding tailstock, chip conveyor, high-pressure coolant, and common options pushes configured price to $105,000-$125,000. The long-bed premium over the standard ST-35 is approximately $5,000-$8,000.

02 How does the ST-35L compare to the ST-30L?

Both share the same large-frame platform and 40-inch Z-travel. The ST-35L upgrades to a 4-inch bar capacity (vs 4-inch on the ST-30L via its 101.6 mm bore), 40 hp (vs 30 hp), 12-inch chuck (vs 10.4-inch), and A2-8 nose (vs A2-8 on the ST-30). Choose the ST-35L when you need the extra 10 hp and larger chuck for heavier roughing on large-bore work.

03 What is the difference between the ST-35 and ST-35L?

The ST-35L extends the Z-axis from 660 mm (26 in) to 1,016 mm (40 in). All spindle, chuck, bore, and power specs are identical. Choose the L variant when your parts regularly exceed 26 inches in turning length.

04 Should I buy the ST-35L or the ST-40?

The ST-40 jumps to a 648 x 1,118 mm (25.5 x 44 in) cutting envelope, 15-inch chuck, optional 2-speed gearbox with 1,400 ft-lb torque, and A2-11 nose. If your parts fit within the ST-35L's 15 x 40-inch envelope and 4-inch bore is sufficient, the ST-35L saves $40-60K. The ST-40 is for truly large-frame work.