USED HAAS ST-15Y – 2023

The HAAS ST-15Y – 2023 is a compact CNC turning center that combines conventional CNC turning with Y-axis movement and live tooling. This configuration allows manufacturers to perform turning, drilling, milling, tapping, slotting, and other off-center operations in a single setup. The machine is designed for shops that need more flexibility than a standard 2-axis CNC lathe while maintaining a relatively compact footprint.

The 2023 ST-15Y provides approximately 7.88 inches of X-axis travel, ±2 inches of Y-axis travel, and 16 inches of Z-axis travel. Its documented capacity includes a 16.5-inch swing, 12-inch maximum turning diameter, 16-inch machining length, 8.3-inch chuck, and 2.5-inch bar capacity.

The machine uses a 20 HP main spindle and is available with live tooling and C-axis capability. Depending on configuration, documented 2023 machines can have a 4,000 RPM or 6,000 RPM main spindle, while a low-hour 2023 example is equipped with a 6,000 RPM spindle and a 6,000 RPM secondary spindle.

The ST-15Y is particularly useful for producing turned components that require secondary milling or drilling operations. Industries such as automotive, aerospace, medical, electronics, industrial equipment, and general job-shop manufacturing can benefit from its ability to combine multiple machining processes in one CNC turning platform.

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HAAS ST-15Y – 2023 – AXIS

Specification	Value
Machine Type	CNC Turning Center
Number of Axes	4 standard machine axes
X-Axis Travel	7.88″
Y-Axis Travel	±2.00″
Z-Axis Travel	16.00″
C-Axis	Yes
Live Tooling	Yes
Y-Axis	Yes
CNC Control	Haas CNC
Tailstock	Yes
Secondary Spindle	Configuration dependent

The ST-15Y adds Y-axis capability to the turning platform, allowing live tools to perform off-center milling and drilling operations. This can eliminate secondary setups for many parts and improve overall production efficiency.

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HAAS ST-15Y – 2023 – AXIS TRAVELS / WORK ENVELOPE

Specification	Value
X-Axis Travel	7.88″
Y-Axis Travel	±2.00″
Z-Axis Travel	16.00″
Maximum Swing	16.5″
Maximum Turning Diameter	12″
Maximum Cutting Length	16″
Rapid X-Axis	472 IPM
Rapid Y-Axis	472 IPM
Rapid Z-Axis	1,200 IPM

The ST-15Y’s 16-inch machining length and 12-inch maximum turning diameter make it well suited to small- and medium-sized turned components. The ±2-inch Y-axis travel provides the additional movement required for off-center live-tool operations.

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HAAS ST-15Y – 2023 – CAPACITY

Specification	Value
Chuck Size	8.3″
Bar Capacity	2.5″
Maximum Swing	16.5″
Maximum Turning Diameter	12″
Maximum Cutting Length	16″
Spindle Bore	3.5″
Spindle Nose	A2-6
Tailstock	Yes
Turret	12 Station
Workholding	Chuck / Collet Options

The 8.3-inch chuck and 2.5-inch bar capacity provide a useful balance between workholding flexibility and compact machine size. The A2-6 spindle nose is suitable for a broad range of standard turning workholding arrangements.

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HAAS ST-15Y – 2023 – SPINDLE

Specification	Value
Main Spindle Motor	20 HP
Maximum Spindle Speed	4,000-6,000 RPM, configuration dependent
Spindle Nose	A2-6
Spindle Bore	3.5″
Chuck	8.3″
Bar Capacity	2.5″
Spindle Orientation	Available
Spindle Type	CNC Turning Spindle

The ST-15Y uses a 20 HP main spindle designed for both general turning and higher-speed machining applications. Documented 2023 machines show configuration differences, with some listings specifying 4,000 RPM and a low-hour 2023 machine equipped with a 6,000 RPM spindle. Buyers should verify the spindle specification of the individual machine.

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HAAS ST-15Y – 2023 – MILLING SPINDLE / LIVE TOOLING

Specification	Value
Live Tooling	Yes
C-Axis	Yes
Live Tool Speed	Up to 4,000 RPM on documented configuration
Y-Axis	±2.00″
Live Tool Holders	Configuration dependent
Milling Capability	Off-Center Milling
Drilling	Yes
Tapping	Rigid Tapping
Slotting	Yes

The Y-axis and live-tooling system are among the ST-15Y’s most important advantages. A documented 2023 machine includes 4,000 RPM live tooling, C-axis capability, rigid tapping, and interpolated motion, allowing milling and drilling operations to be performed directly on the turning center.

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HAAS ST-15Y – 2023 – TOOL TURRET

Specification	Value
Turret Type	Automatic Turret
Turret Capacity	12 Stations
Tooling	Turning and Live Tooling
Live Tooling	Yes
C-Axis	Yes
Tool Presetter	Yes
Automatic Tool Indexing	Yes
Tool Management	Advanced Tool Management

The 12-station turret provides room for a combination of turning tools, boring bars, drills, and live-tool holders. An automatic tool presetter can help reduce setup time and improve consistency when establishing tool offsets.

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HAAS ST-15Y – 2023 – CONTROL SYSTEM

Specification	Value
CNC Control	Haas CNC
Program Memory	1 GB
Ethernet	Yes
Wi-Fi	Yes
HaasConnect	Yes
Visual Part Programming	Yes
User-Definable Macros	Yes
Advanced Tool Management	Yes
Media Display / M-Code	Yes
Touchscreen	Available / Configuration dependent

The Haas CNC control provides an integrated programming and machine-management environment. Documented 2023 configurations include 1 GB memory, Ethernet, Wi-Fi, HaasConnect, visual part programming, user-definable macros, advanced tool management, and media display M-code functionality.

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HAAS ST-15Y – 2023 – COOLANT & CHIP MANAGEMENT

Specification	Value
Coolant Tank	30 Gallons
Coolant Pump	1/2 HP
Chip Conveyor	Yes
Chip Removal	Automatic
High-Pressure Coolant	Option
Cabinet Cooler	Configuration dependent
Coolant System	Integrated

The ST-15Y can be equipped with an integrated 30-gallon coolant tank and pump, while documented 2023 machines also include chip conveyors. High-pressure coolant was available as an option on 2023 Haas quotations.

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HAAS ST-15Y – 2023 – POWER REQUIREMENTS

Specification	Value
Main Spindle Motor	20 HP
Electrical Supply	3-Phase Industrial Power
Main Drive	AC
Axis Drives	Servo
Internal Transformer	Configuration dependent
Power Surge Protection	Available
Exact Voltage	Verify Machine Nameplate
Installed Power	Configuration dependent

The 20 HP spindle is the primary machining power source. Exact electrical requirements should be verified from the machine’s electrical nameplate and configuration because options such as a secondary spindle, high-pressure coolant, bar feeder, and other accessories can change the total connected load.

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HAAS ST-15Y – 2023 – DIMENSIONS

Specification	Value
Approx. Length	126″
Approx. Width	70″
Approx. Height	81″
Approx. Weight	7,900 lbs
Machine Type	CNC Turning Center
Installation	Industrial Floor
Footprint	Compact CNC Turning Configuration

A documented 2023 ST-15Y is listed at approximately 126 x 70 x 81 inches and 7,900 pounds. Another 2023 listing gives a similar machine footprint, although dimensions can vary depending on the installed chip conveyor and accessories.

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HAAS ST-15Y – 2023 – GENERAL INFORMATION

Item	Details
Manufacturer	Haas
Model	ST-15Y
Year	2023
Machine Type	CNC Turning Center
X-Axis Travel	7.88″
Y-Axis Travel	±2.00″
Z-Axis Travel	16.00″
Maximum Swing	16.5″
Maximum Turning Diameter	12″
Machining Length	16″
Chuck	8.3″
Bar Capacity	2.5″
Spindle Bore	3.5″
Spindle Nose	A2-6
Main Spindle Power	20 HP
Main Spindle Speed	4,000-6,000 RPM, configuration dependent
Live Tooling	Yes
C-Axis	Yes
Turret	12 Station
Control	Haas CNC
Tailstock	Yes
Tool Presetter	Yes
Parts Catcher	Configuration dependent
Chip Conveyor	Yes
Coolant Tank	30 Gallons
Secondary Spindle	Optional / Configuration dependent
Machine Weight	Approx. 7,900 lbs

The 2023 ST-15Y was available with a range of options. One documented low-hour example had less than 100 cutting hours, a 6,000 RPM secondary spindle with a 5.3-inch chuck, 4,000 RPM live tooling, Haas bar feeder, spindle liners, chip conveyor, tool presetter, and cabinet cooler.

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INDUSTRIES THAT USE HAAS ST-15Y – 2023

The HAAS ST-15Y can be used in many industries where turned components require additional milling or drilling operations, including:

• Aerospace manufacturing
• Automotive manufacturing
• Medical equipment
• Electronics
• Industrial machinery
• Robotics
• Hydraulic equipment
• Pneumatic equipment
• Energy equipment
• Defense manufacturing
• General job shops
• Contract manufacturing
• Precision engineering
• Tool and fixture manufacturing

The Y-axis and live tooling make the machine particularly valuable for manufacturers producing parts that would otherwise require separate turning and milling setups.

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TYPICAL PARTS HAAS ST-15Y – 2023 CAN PRODUCE

The ST-15Y can produce a wide variety of turned and turned-and-milled components, including:

• Shafts
• Bushings
• Pins
• Flanges
• Sleeves
• Housings
• Couplings
• Hydraulic components
• Valve components
• Fittings
• Medical components
• Automotive components
• Threaded parts
• Drilled and tapped components
• Milled flats
• Cross-drilled shafts
• Off-center holes
• Slots and keyways

The combination of C-axis, Y-axis, and live tooling allows many of these features to be machined without removing the part from the chuck.

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WHY CHOOSE HAAS ST-15Y – 2023

The HAAS ST-15Y – 2023 is a strong choice for manufacturers that need more than basic 2-axis turning but do not require a large multi-axis production lathe.

Key advantages include:

• Y-axis capability
• C-axis live tooling
• 20 HP main spindle
• Up to 6,000 RPM spindle configuration
• 8.3″ chuck
• 2.5″ bar capacity
• 16.5″ swing
• 12″ turning diameter
• 16″ machining length
• 12-station turret
• Haas CNC control
• Automatic tool presetter
• Tailstock
• Chip conveyor
• 30-gallon coolant system
• Optional secondary spindle
• Optional Haas bar feeder

Its ability to combine turning and milling operations in one setup can reduce handling, improve positional accuracy, and shorten overall production cycles.

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WHY BUY USED HAAS ST-15Y – 2023

Buying a used HAAS ST-15Y – 2023 can provide access to a relatively recent Y-axis CNC turning center at a substantially lower cost than purchasing a new machine.

The age of a 2023 machine also means buyers may find examples with relatively low cutting hours. One currently documented 2023 ST-15Y has less than 100 cutting hours and includes a substantial package of accessories and tooling.

When evaluating a used ST-15Y, buyers should check:

• Spindle hours and cutting hours
• Main spindle condition
• Secondary spindle condition if equipped
• Y-axis backlash and positioning accuracy
• C-axis operation
• Live-tooling spindle condition
• Turret indexing
• Tool presetter
• Chuck and collet condition
• Tailstock alignment
• Ball screws and linear guides
• Chip conveyor
• Coolant system
• Haas CNC control
• Bar feeder and spindle liners
• Machine geometry
• Maintenance records

A low-hour machine with a secondary spindle, live tooling, bar feeder, chip conveyor, and tooling package can command a significant premium over a basic ST-15Y configuration.

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HOW MUCH DOES A USED HAAS ST-15Y – 2023 COST?

The used price of a HAAS ST-15Y – 2023 varies considerably according to cutting hours, options, secondary spindle configuration, tooling, bar feeder, machine condition, and included accessories.

Current market listings show 2023 ST-15Y machines available with prices around the low-$50,000 range, while a current European listing is advertised at €57,000. Current listings also include exceptionally low-hour 2023 machines for which sellers request a quotation rather than publishing an asking price.

For context, Haas documentation from 2023 shows a base ST-15Y quoted at $92,895, before additional options. A 2023 Haas quotation with secondary spindle and other options totaled $127,880, while another configured quotation totaled $143,365. These are historical new-machine quotations rather than current used values.

Machine Condition	Estimated Used Price
Higher Hours / Basic Configuration	$42,000 – $50,000
Running / Average Condition	$50,000 – $58,000
Good Condition	$58,000 – $66,000
Low Hours / Well Equipped	$66,000 – $75,000
Exceptional / Very Low Hours	$75,000+

Reasonable target buying range: $55,000 – $68,000

Best estimated listing value: $62,000 – $72,000

A 2023 HAAS ST-15Y with very low cutting hours, secondary spindle, live tooling, bar feeder, chip conveyor, tool presetter, and complete tooling package can reasonably be positioned toward the upper end of the range. A basic machine with substantially higher hours should be priced closer to the lower end.