Used HAAS ST-20Y - 2021 CNC Machine For Sale - California - USA

HAAS ST-20Y – 2021

MAKE: HAAS
MODEL: ST20Y
TYPE: Lathe
YEAR: 2021
SKU: 108036
DEALER: Bay Area Machinery
COUNTRY: USA
STATE: California

USED HAAS ST-20Y – 2021

The Haas Automation ST-20Y – 2021 is a high-performance Y-axis CNC turning center designed for complete part machining in a single setup. As part of Haas Automation’s best-selling ST Series, the ST-20Y combines turning, milling, drilling, and tapping capabilities with C-axis spindle control and live tooling. This machine is widely used in aerospace, medical, automotive, electronics, and general precision manufacturing where reduced setups and improved part consistency are critical.

The 2021 HAAS ST-20Y features an 8.3″ (210 mm) hydraulic chuck, 2.5″ (63.5 mm) bar capacity, and maximum cutting dimensions of 11.75″ diameter by 22.5″ length. It offers X-axis travel of 8.4″, Y-axis travel of ±2.0″, and Z-axis travel of 22.5″. The machine is equipped with a 4,000 RPM A2-6 spindle powered by a 20 HP vector-drive motor and a 12-station BMT65 turret with live tooling up to 4,000 RPM. Common options include a programmable tailstock, parts catcher, sub-spindle, high-pressure coolant, and the Haas Automatic Parts Loader (APL).

Most 2021 machines include the latest Haas control with a widescreen display, Wi-Fi connectivity, Ethernet, USB, rigid tapping, HaasConnect remote monitoring, and advanced tool management. The ST-20Y is particularly attractive for shops that need done-in-one machining without the cost of more complex mill-turn platforms. Users on machining forums report excellent turned-surface finishes and strong day-to-day reliability, especially for prototyping and medium-volume production.

Industries that use the HAAS ST-20Y include aerospace, medical device manufacturing, hydraulics, electronics, defense, and contract machining. Typical parts include valve components, fittings, shafts, connectors, and precision turned-and-milled parts.

The HAAS ST-20Y remains one of the most sought-after used Y-axis lathes because it offers modern multitasking capability, straightforward programming, and excellent support from Haas Automation.


HAAS ST-20Y – AXIS

ParameterSpecification
Number of Controlled Axes3 Axis (X, Y, Z) + C Axis
X Axis Travel8.4″ (213 mm)
Y Axis Travel±2.0″ (±51 mm)
Z Axis Travel22.5″ (572 mm)
ProgrammingG-Code and Conversational Features

HAAS ST-20Y – CAPACITY

ParameterSpecification
Chuck Size8.3″ (210 mm)
Maximum Cutting Diameter11.75″ (298 mm)
Maximum Cutting Length22.5″ (572 mm)
Maximum Part Swing21.0″ (533 mm)
Bar Capacity2.5″ (63.5 mm)

HAAS ST-20Y – SPINDLE

ParameterSpecification
Maximum Spindle Speed4,000 RPM
Spindle Motor20 HP (14.9 kW)
Spindle NoseA2-6
Spindle Bore3.50″ (88.9 mm)
C-Axis Positioning0.01°

HAAS ST-20Y – LIVE TOOLING

ParameterSpecification
Turret Stations12
Turret TypeBMT65
Live Tool SpeedUp to 4,000 RPM
Milling, Drilling, TappingStandard

HAAS ST-20Y – CONTROL SYSTEM

ParameterSpecification
CNC ControlHaas Next-Generation Control
ConnectivityUSB, Ethernet, Wi-Fi
Remote MonitoringHaasConnect
Rigid TappingStandard

HAAS ST-20Y – AUTOMATION OPTIONS

ParameterSpecification
Automatic Parts Loader (APL)Optional
Auto DoorOptional
Parts CatcherOptional
Sub-SpindleOptional
TailstockOptional

HAAS ST-20Y – COOLANT / CHIP MANAGEMENT

ParameterSpecification
Coolant Tank Capacity55 Gallons
Flood Coolant SystemStandard
High-Pressure CoolantOptional
Chip ConveyorOptional

HAAS ST-20Y – POWER REQUIREMENTS

ParameterSpecification
Electrical Requirement220V or 440V / 3 Phase
Air Requirement4 SCFM @ 100 PSI
Full Load Current40A @ 220V

HAAS ST-20Y – DIMENSIONS

ParameterSpecification
Shipping Footprint143″ × 90″ × 92″
Machine Weight10,480 lbs (4,754 kg)

HAAS ST-20Y – GENERAL INFORMATION

ParameterSpecification
ManufacturerHaas Automation
ModelST-20Y
Year2021
Machine TypeY-Axis CNC Turning Center
Country of ManufactureUSA
Typical ConditionProduction Ready

INDUSTRIES THAT USE HAAS ST-20Y

  • Aerospace
  • Medical Device Manufacturing
  • Automotive
  • Electronics
  • Hydraulics and Pneumatics
  • Defense
  • Precision Contract Machining
  • General Manufacturing

TYPICAL PARTS HAAS ST-20Y CAN PRODUCE

  • Valve Components
  • Hydraulic Fittings
  • Shafts
  • Connectors
  • Medical Components
  • Aerospace Bushings
  • Precision Housings
  • Turned and Milled Parts

WHY CHOOSE HAAS ST-20Y

The HAAS ST-20Y offers an excellent balance of affordability, capability, and ease of use. Y-axis motion and live tooling allow milling, drilling, and off-center features to be completed in one setup, improving accuracy and reducing labor.

The Haas control is widely regarded as one of the easiest CNC controls to learn and maintain. With optional automation such as the APL and auto door, the ST-20Y can also support unattended production and higher throughput.

For shops seeking a dependable multitasking lathe with strong factory support, the ST-20Y is one of the best values in the CNC turning market.


WHY BUY USED HAAS ST-20Y – 2021

Purchasing a used HAAS ST-20Y – 2021 is an excellent way to acquire a modern Y-axis turning center with live tooling and advanced automation options while avoiding the full cost and lead time associated with a new machine. A 2021 model is recent enough to include the latest Haas Next-Generation Control, Wi-Fi connectivity, remote monitoring, and enhanced productivity features that remain highly competitive in today’s manufacturing environment.

Many used machines come equipped with valuable options such as high-pressure coolant, programmable tailstocks, parts catchers, automatic parts loaders, and sub-spindles. These accessories can save tens of thousands of dollars and allow the machine to be put into production immediately. Because the ST-20Y combines turning and milling in one setup, it reduces handling, improves dimensional consistency, and shortens cycle times.

The machine is especially attractive to job shops and production facilities because it is easy to program, simple to maintain, and supported by Haas Automation’s extensive service network. Replacement parts, software updates, and technical support are readily available throughout North America and internationally.

For manufacturers seeking a reliable, flexible, and automation-ready turning center, purchasing a used 2021 HAAS ST-20Y offers outstanding performance and excellent return on investment.


HOW MUCH DOES A USED HAAS ST-20Y – 2021 COST?

The cost of a used HAAS ST-20Y – 2021 depends on spindle hours, machine condition, installed options, and included tooling.

Machines equipped with high-pressure coolant, bar feeders, sub-spindles, APL automation, and extensive tooling packages typically command higher resale values. Buyers should inspect spindle condition, turret accuracy, Y-axis performance, and maintenance records before purchasing.

Because the ST-20Y is one of the most popular Y-axis turning centers in the market, used demand remains strong. A properly maintained machine can provide years of productive service while delivering substantial savings compared to purchasing a new machine.