ST-15Y

For the best pricing in your area, contact your local Haas Factory Outlet.

Y-Axis CNC Lathe with 11" x 16" max capacity and 2.5" bar capacity

The Haas ST Series high-performance turning centers were designed from the ground up to provide setup flexibility, extreme rigidity, and high thermal stability.

The ST-15Y is an extra-small footprint, big-bore lathe with a generous work envelope. The addition of Y-axis and live tooling allows milling, drilling, and tapping for increased machine capabilities. This machine offers the best performance for the money – the best value – in its class.

Extra-small footprint
Big-bore spindle
Y-axis milling, drilling, and tapping
High rpm and rapid speeds

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Model	Serial#	Options

8.3" Chuck Size
2.5" Bar Capacity
4k RPM
20 hp Power

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Specs
Automation
Machine Info

Capacities	S.A.E	METRIC
Chuck Size	8.3 in	210 mm
Max Part Swing	16.5 in	419 mm
Max Cutting Diameter (with BMT45 turret)	11.00 in	279 mm
Max Cutting Length (varies with workholding)	16.0 in	406 mm
Bar Capacity	2.50 in	64 mm

Travels	S.A.E	METRIC
X Axis	7.88 in	200 mm
Y Axis	± 2.0 in	± 51 mm
Z Axis	16.00 in	406 mm

Feedrates	S.A.E	METRIC
Rapids on X	472 ipm	12.0 m/min
Rapids on Y	472 ipm	12.0 m/min
Rapids on Z	1200 ipm	30.5 m/min

Axis Motors	S.A.E	METRIC
Max Thrust X	2400 lbf	10676 N
Max Thrust Y	2300 lbf	10231 N
Max Thrust Z	3700 lbf	16458 N

Spindle	S.A.E	METRIC
Spindle Nose	A2-6	A2-6
Max Rating	20.0 hp	14.9 kW
Max Speed	4000 rpm	4000 rpm
Max Torque	150.0 ft-lbf @ 500 rpm	203.0 Nm @ 500 rpm
Spindle Bore ø	3.50 in	88.9 mm

Main Spindle C Axis	S.A.E	METRIC
Max Rating	5.0 hp	3.7 kW
Max Speed	60 rpm	60 rpm
Positioning (±)	0.01 °	0.01 °
Brake Diameter	13.9 in	353 mm
Brake Holding Torque	250 ft-lbf	339 Nm
Control Type	Interpolated Motion and Positioning	Interpolated Motion and Positioning

Sub-Spindle	S.A.E	METRIC
Chuck Size	5.3 in	35 mm
Spindle Nose	A2-5	A2-5
Max Speed	6000 rpm	6000 rpm
Max Sync Speed w/Main Spindle	4800 rpm	4800 rpm
Chuck Throat	Ø 1.30 in x 1.37 in DEEP	Ø 33.0 mm x 34.8 mm DEEP
Drawbar Bore (NON-THROUGH)	Ø 1.00 in x 4.50 in DEEP	Ø 25.4 mm x 14.3 mm DEEP
Spindle Bore (without chuck and drawbar installed)	1.50 in	38.1 mm
Integrated Brake Torque	17 ft-lbf	23 N/m
Spindle Orientation Accuracy (Requires SO)	± 0.02 °	± 0.02 °
Rapids (B-axis)	400 ipm	10 m/min

Tailstock	S.A.E	METRIC
Taper	MT3	MT3
Hydraulic Quill Travel	3.8 in	95 mm
Manual Body Positioning	20.0 in	508 mm
Max Thrust (Hyd. Quill Only)	1130 lbf	5026 N
Min Thrust (Hyd. Quill Only)	140 lbf	623 N

Turret	S.A.E	METRIC
Number of Tools	12 Stations	12 Stations
Boring Bar Rear Clearance (from back of turret )	3.80 in	96.5 mm

Live Tooling	S.A.E	METRIC
Max Speed	4000 rpm	4000 rpm
Tooling	BMT45	BMT45

General	S.A.E	METRIC
Coolant Capacity	30 gal	114 L

Air Requirements	S.A.E	METRIC
Air Required†	4 scfm @ 100 psi	113 L/min @ 6.9 bar

Electrical Specification	S.A.E	METRIC
Spindle Speed	4000 rpm	4000 rpm
Drive System	Direct Speed, Belt Drive	Direct Speed, Belt Drive
Spindle Power	20.0 hp	14.9 kW
Input AC Voltage (3 Phase) - Low	220 VAC	220 VAC
Full Load Amps (3 Phase) - Low	40 A	40 A
Input AC Voltage (3 Phase) - High*	440 VAC	440 VAC
Full Load Amps (3 Phase) - High*	20 A	20 A

Dimensions - Shipping	S.A.E	METRIC
Domestic Pallet	126.0 in x 70.0 in x 81.0 in	320 cm x 178 cm x 206 cm
Export Pallet	126.0 in x 70.0 in x 81.0 in	320 cm x 178 cm x 206 cm
Weight	7900 lb	3583.0 kg

NOTE: All specifications listed are for the standard machine configuration. Optional equipment may change the machine’s specifications.

*Haas machines are designed to operate on 220 VAC (200-240 VAC) power. An optional internal high-voltage transformer (380 - 480 VAC) is available for all models, except the Desktop Machines, CL-1, CM-1, and SR Series routers. This optional high-voltage internal transformer is not field installable; it must be ordered with the machine.

Haas machines destined for Europe and the UK are configured with an internal high-voltage non-isolated transformer to operate on 400 VAC, except the Desktop Machines, CL-1, CM-1, and SR Series routers.

**Optional tool changers may have a different max tool size than the standard tool changer. Extra-large tools may require two adjacent pockets empty between tools. Click here for toolholder specifications.

ATTENTION! Optional high-performance spindles may have a higher power requirement than the standard spindle. However, if the spindle horsepower (kW) does not change, the power requirement remains the same. Verify the power requirement before running power for your machine.

† Air consumption on 40-taper DC Series machines may be higher, when Through-Tool Air Blast (TAB) is activated.

Standard Features

* Not all options are compatible with each other. Some options may require the purchase of additional options, or may include additional options at no charge. Please use our Build-&-Price tool to determine option compatibility, and configure your machine.

ANSWERS TO YOUR CONCERNS ABOUT ADDING A HAAS ROBOT: It won’t take up much space, cost a ton of money, or take weeks to integrate.

SPACE EFFICIENT

COST EFFECTIVE

EASY TO INTEGRATE

EASY TO LEARN

AVAILABLE OPTIONS

TECHNICAL DOCUMENTS

VIDEOS

CUSTOMER TESTIMONIALS

BMT45 LIVE TOOLING NOW STANDARD!

✓ Better tool clearance | ✓ More rigid tool connection | ✓ More tool choices and versatility | ✓ ER20 driven tools

12-Station BMT45 Live Tooling

Better clearance, more rigid tool connection, more versatile

4k speed
10 hp power
Internal drive

Learn More

TECHNICAL DOCUMENTS

*NOTE: Due to continual design improvements, 3D models and layout drawings may not be accurate to the latest production model.

HAAS LATHE WORK ENVELOPE COMPARISON CHART

CHUCK SIZE | BAR CAPACITY | WORK ENVELOPE | AUTOMATION OPTIONS

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Videos

ST-15Y with BMT45

The Haas ST-15Y is a great way to get Y-axis turning productivity into your shop while taking up minimal floor space. And now Haas is adding another really good reason to add an ST-10Y or ST-15Y in your shop. The BMT45 turret option gives increased rigidity and performance in your Y-axis milling and drilling operations.

Lathe Drilling: Everything You Need to Know

Cut Cycle Times and Position Your Turret Using G53

The Haas BMT65 Turret

Setting Up Live Tools

CUSTOMER TESTIMONIALS

MST MANUFACTURING | LIBERTY FORGED

MST Manufacturing is a precision machine shop that focuses on flight-critical components for the aerospace and defense industries. Liberty Forged, a partner with MST, leverages the shop’s capabilities to produce high-end custom wheels.

“We specialize in parts and assemblies, and tooling for the aerospace industry, focusing on commercial platforms, military platforms, aerospace, and defense. Liberty Forged is a wheel manufacturing company that builds custom wheels for the lifted-truck market. In the 30 years we’ve been in business, we’ve purchased 60 CNC machines from Haas. Without sounding like a Haas salesman, I can tell you, I keep coming back to Haas, because the machines are economical to purchase, extremely easy to operate, and the service and support are local and convenient.”

– Kenneth Statton, President and CEO

“We chose Haas because of your reputation for superior quality, and your support after the sale. I would like to go on record that we have been extremely happy with the Haas model ST-15Y we purchased. It has allowed us to make the consumable parts for our tooling that we were previously forced to farm out to other vendors. Deliveries to our customers are no longer at the mercy of our vendor’s timetables, and by manufacturing in-house, we have a much better handle on quality control. Overall, we are extremely satisfied with our purchase, and have recommended Haas to others as a result.”

Andrew Lochridge | VP Sales & Marketing | HydroSwage® International, LLC.

HIGHER RPM SPINDLE

ST-10Y

Y-Axis CNC Lathe with 11" x 16" max capacity and 1.75" bar capacity

6.5" Chuck Size
1.75" Bar Capacity
6k RPM
15 hp Power

Learn More Build & Price

LARGER WORK ENVELOPE, SMALLER BAR CAPACITY

ST-20Y

Y-Axis CNC Lathe with 11.75" x 22.5" max capacity and 2.5" bar capacity

8.3" Chuck Size
2.5" Bar Capacity
4k RPM
20 hp Power

Learn More Build & Price

LARGER BAR CAPACITY & CHUCK, MORE POWER

ST-25Y

Y-Axis CNC Lathe with 11.75" x 22.5" max capacity and 3.0" bar capacity

10" Chuck Size
3.0" Bar Capacity
3.4k RPM
30 hp Power

Learn More Build & Price

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All prices and specifications subject to change without notice. Freight, rigging, state & local taxes, and dealer installed accessories are not included. Not responsible for misprints or typographical errors. Machines shown with optional equipment. Actual product appearance may differ.

ST-15Y

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