Used Haas ST-20 CNC Lathe for Sale | Made in USA

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Product Highlight

Used Haas ST-20 CNC lathe is an American-made, 2-axis CNC turning center equipped with Haas CNC control, a 3-jaw chuck, a tool turret, and a tailstock. Featuring a manufacturer-rated maximum spindle speed of 4,000 RPM and 20 HP maximum spindle power, it is designed for general turning, shaft machining, and industrial metalworking applications. A practical option for manufacturers seeking pre-owned CNC equipment.

Product Description

Used Haas ST-20 CNC turning center, manufactured in the USA, features Haas CNC control, a 3-jaw chuck, a multi-station tool turret, and a tailstock. Designed for metal turning, shaft machining, and general industrial parts production, it offers a cost-effective alternative to investing in new CNC equipment.

Technical Specifications

Parameter	Specification
Brand	Haas Automation
Model	ST-20
Machine Type	CNC Lathe / CNC Turning Center
Condition	Used / Pre-Owned
Country of Origin	USA
CNC Control System	Haas CNC Control
Number of Axes	2 (X and Z)
Maximum Part Swing	806 mm (31.75 in)
Maximum Cutting Diameter	381 mm (15 in), with BOT turret
Maximum Cutting Length	533 mm (21 in)
Standard Chuck Size	210 mm (8.3 in)
Installed Chuck Type	3-Jaw Chuck
Maximum Spindle Speed	4,000 RPM
Maximum Spindle Power Rating	20 HP (14.9 kW)
Spindle Nose	A2-6
Standard Bar Capacity	51 mm (2.0 in)
X-Axis Travel	236 mm (9.3 in)
Z-Axis Travel	533 mm (21 in)
Standard Tool Turret	12-Station Bolt-On Turret
Tailstock	Equipped
Standard Drive System	Belt Drive
Power Supply	480 V, 3-Phase
Frequency	50/60 Hz
Nameplate Full-Load Current	18 A

Technical Note: Machining capacities, spindle ratings, and travel specifications are based on the manufacturer's previous-generation Haas ST-20 specifications. Installed options, actual operating condition, and machining accuracy should be verified before purchase. Actual cutting capacity depends on tooling and workholding arrangements.

Applications & Industries

Used Haas ST-20 CNC lathe is designed for a wide range of metal turning applications and is suitable for machine shops, mechanical workshops, and industrial component manufacturers.

Shaft and Cylindrical Parts Machining

Suitable for turning shafts, pins, bushings, sleeves, spacers, and other cylindrical components. Its tailstock can provide additional workpiece support for suitable turning operations.

Automotive Component Manufacturing

Applicable to the production of selected automotive components, including transmission-related parts, mechanical bushings, threaded components, and precision-turned metal parts.

Industrial Machinery Components

Suitable for machining components used in industrial machinery, mechanical assemblies, equipment maintenance, and replacement-part manufacturing.

General Metalworking Operations

Designed for common CNC turning operations, including external turning, internal boring, facing, grooving, drilling, and threading with appropriate tools.

Small and Medium Batch Production

A practical choice for job shops, subcontract machining companies, and manufacturers handling small to medium production batches.

The Haas ST-20 platform can machine a range of materials, including carbon steel, stainless steel, aluminum, brass, and other machinable metals, depending on tooling and cutting conditions.

FAQ

What are the main specifications of this used Haas ST-20?

The previous-generation Haas ST-20 has a manufacturer-rated maximum spindle speed of 4,000 RPM, 20 HP maximum spindle power, 381 mm maximum cutting diameter with a BOT turret, and 533 mm maximum cutting length. Actual usable capacity depends on tooling and workholding.

Does this Haas ST-20 come with a 3-jaw chuck and tailstock?

Yes. The machine is equipped with a 3-jaw chuck and a tailstock. These components support common turning and workholding applications. Final accessory inclusion and working condition should be confirmed before purchase.

Can this used Haas ST-20 machine stainless steel and aluminum?

Yes. The Haas ST-20 machine platform is suitable for turning stainless steel, aluminum, carbon steel, brass, and other machinable metals when appropriate cutting tools and machining parameters are used. Actual machining performance depends on machine condition.