USED HAAS ST-20Y – 2015

The HAAS ST-20Y – 2015 is a versatile CNC turning center that combines traditional lathe operations with Y-axis milling capabilities, allowing manufacturers to complete complex parts in a single setup. Designed for shops that require both turning and live-tool machining, the ST-20Y offers an excellent balance of performance, flexibility, and affordability.

Built on Haas’s proven ST-Series platform, the machine features an 8.3-inch hydraulic chuck, Y-axis travel, C-axis spindle positioning, and live tooling capabilities. These features enable the machine to perform turning, drilling, tapping, milling, slotting, and cross-hole operations without transferring parts to a secondary machine. This significantly reduces setup time, improves part accuracy, and increases overall production efficiency.

The ST-20Y is commonly found in aerospace, automotive, medical, defense, oil & gas, industrial equipment, and precision job shop environments. Its combination of compact footprint, user-friendly controls, and strong machining capabilities has made it one of Haas Automation’s most popular Y-axis turning centers.

The 2015 HAAS ST-20Y remains highly desirable in the used CNC market because it provides true mill-turn capability at a competitive price point while maintaining the simplicity and serviceability Haas machines are known for.

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HAAS ST-20Y – AXIS

Specification	Value
Number of Axes	4 Axis
Axis Configuration	X, Y, Z, C
Machine Type	CNC Turning Center
Y-Axis Travel	±2.0 in
C-Axis Positioning	Standard
Live Tool Capability	Standard

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HAAS ST-20Y – AXIS TRAVELS / WORK ENVELOPE

Specification	Value
X-Axis Travel	8.4 in
Y-Axis Travel	4.0 in Total
Z-Axis Travel	22.5 in
Maximum Cutting Diameter	11.75 in
Maximum Cutting Length	22.5 in
Maximum Part Swing	21.0 in

The ST-20Y provides a generous work envelope for medium-sized production parts and complex turned components.

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HAAS ST-20Y – CAPACITY / CHUCK

Specification	Value
Chuck Size	8.3 in
Bar Capacity	2.5 in
Spindle Nose	A2-6
Maximum Part Capacity	11.75 in x 22.5 in
Hydraulic Chuck	Standard
Tailstock	Optional

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HAAS ST-20Y – SPINDLE

Specification	Value
Maximum Spindle Speed	4,000 RPM
Spindle Power	20 HP
Maximum Torque	150 ft-lbs
Spindle Drive	Belt Drive
Spindle Bore	3.5 in
C-Axis Control	Standard

The spindle system provides an excellent combination of torque and reliability for a wide range of materials and production environments.

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HAAS ST-20Y – LIVE TOOLING

Specification	Value
Live Tool Speed	4,000 RPM
Turret Type	BMT65
Live Tool Capability	Standard
Axial Milling	Supported
Radial Milling	Supported
Cross Drilling	Supported

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HAAS ST-20Y – TOOL CHANGER / TURRET

Specification	Value
Turret Stations	12
Tool Configuration	Any Combination OD/ID
Turret Type	BMT65
Tool Selection	Automatic
Live Tool Positions	Available on Multiple Stations

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HAAS ST-20Y – CONTROL SYSTEM

Specification	Value
CNC Control	Haas CNC Control
Programming Interface	Conversational & G-Code
Ethernet Connectivity	Standard
USB Connectivity	Standard
Rigid Tapping	Standard
Network Capability	Available

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HAAS ST-20Y – COOLANT / CHIP MANAGEMENT

Specification	Value
Coolant Tank Capacity	55 Gallons
Flood Coolant System	Standard
High-Pressure Coolant	Optional
Chip Conveyor	Optional
Coolant Filtration	Standard
Automatic Chip Removal	Available

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HAAS ST-20Y – POWER REQUIREMENTS

Specification	Value
Electrical Supply	220V – 480V
Phase	3 Phase
Frequency	50/60 Hz
Full Load Current	Approx. 40 Amps
Connected Load	Approx. 20 kVA

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HAAS ST-20Y – DIMENSIONS

Specification	Value
Machine Length	Approx. 130 in
Machine Width	Approx. 64 in
Machine Height	Approx. 77 in
Machine Weight	Approx. 10,500 lbs

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HAAS ST-20Y – GENERAL INFORMATION

Specification	Value
Manufacturer	Haas Automation
Model	ST-20Y
Year	2015
Machine Category	Y-Axis CNC Lathe
Control System	Haas CNC Control
Construction	Cast Iron Base
Production Type	Turning & Mill-Turn Applications
Automation Ready	Yes

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INDUSTRIES THAT USE HAAS ST-20Y

• Aerospace Manufacturing
• Medical Device Manufacturing
• Automotive Manufacturing
• Defense Manufacturing
• Oil & Gas Equipment Manufacturing
• Industrial Equipment Manufacturing
• Electronics Manufacturing
• Hydraulic Component Manufacturing
• Firearms Manufacturing
• Precision Contract Machining

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TYPICAL PARTS HAAS ST-20Y CAN PRODUCE

• Hydraulic Fittings
• Valve Bodies
• Pump Components
• Medical Components
• Aerospace Fittings
• Automotive Shafts
• Bearing Housings
• Precision Bushings
• Threaded Components
• Connector Bodies
• Manifolds
• Complex Turned Parts with Milled Features

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WHY CHOOSE HAAS ST-20Y

The HAAS ST-20Y offers manufacturers the ability to perform both turning and milling operations on a single machine. The addition of Y-axis motion and live tooling eliminates many secondary operations, improving accuracy while reducing cycle times.

The machine is particularly effective for shops producing medium-sized precision components that require off-center drilling, keyways, flats, slots, and milled features. By completing these operations in one setup, manufacturers can improve throughput while minimizing handling errors.

Another major advantage is the Haas control system. Operators and programmers appreciate its intuitive interface, simplified programming environment, and ease of training. This reduces setup time and helps shops quickly become productive.

The ST-20Y also offers a relatively compact footprint compared to larger mill-turn machines while still providing substantial machining capability. Many shops consider it one of the most cost-effective ways to add Y-axis turning capacity.

User experiences often highlight the machine’s ease of use and versatility for prototype and production work.

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WHY BUY USED HAAS ST-20Y

Purchasing a used HAAS ST-20Y allows manufacturers to acquire mill-turn capability at a significantly lower cost than purchasing a new machine. Because Haas machines are widely supported throughout North America and internationally, replacement parts, service technicians, and training resources are generally easy to obtain.

A used machine often provides excellent value, especially when equipped with live tooling, high-pressure coolant, bar feeders, chip conveyors, probing systems, or sub-spindle options. Acquiring these features as part of a used package can substantially reduce overall investment costs.

The machine’s widespread popularity also benefits owners through strong aftermarket support and availability of tooling solutions. Many shops are already familiar with Haas controls, reducing training requirements when adding additional machines.

For manufacturers seeking an affordable and capable Y-axis turning center, the ST-20Y remains one of the strongest options available in the used CNC marketplace.

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HOW MUCH DOES A USED HAAS ST-20Y COST?

The value of a used HAAS ST-20Y depends on machine condition, spindle hours, maintenance history, tooling inventory, installed options, and overall market demand.

Machines equipped with live tooling packages, bar feeders, chip conveyors, tailstocks, sub-spindles, and high-pressure coolant systems generally command higher prices. Buyers also place significant value on machines with documented maintenance records and lower spindle hours.

Because the ST-20Y remains one of Haas’s most popular turning platforms, demand in the used market continues to remain strong across job shops, production facilities, and contract manufacturers.

Additional ownership costs such as rigging, transportation, installation, tooling, electrical work, and facility preparation should also be considered during the purchasing process.

In today’s used CNC machinery market, a 2015 HAAS ST-20Y typically sells within a range of approximately $45,000 to $95,000, depending on machine condition, spindle hours, installed options, tooling packages, and maintenance history.

For manufacturers seeking an affordable, reliable, and highly versatile Y-axis CNC turning center, the HAAS ST-20Y remains one of the best investments available in the used CNC equipment market.