USED HAAS ST20SS – 2011
The 2011 HAAS ST20SS is a high-speed CNC turning center engineered to deliver superior productivity, rapid cycle times, and precision machining performance. The “SS” designation stands for Super Speed, indicating that this model is equipped with higher rapid traverse rates and enhanced performance capabilities compared to the standard ST20. Designed for manufacturers seeking maximum efficiency, the ST20SS is widely used in aerospace, automotive, medical, electronics, defense, and general precision manufacturing environments.
Built on a rigid cast-iron slant-bed platform, the ST20SS provides excellent structural stability during demanding machining operations. The machine’s robust construction minimizes vibration and thermal distortion, allowing operators to maintain tight tolerances and consistent surface finishes across production runs. Whether machining aluminum, stainless steel, alloy steel, brass, titanium, or engineered plastics, the ST20SS delivers reliable and repeatable results.
A key advantage of the ST20SS is its combination of high-speed axis movement and powerful spindle performance. Fast rapid traverse rates significantly reduce non-cutting time, helping manufacturers maximize spindle utilization and overall productivity. The machine’s 12-station turret supports a wide variety of tooling configurations, enabling efficient completion of turning, boring, drilling, grooving, and threading operations within a single setup.
The Haas CNC Control provides straightforward programming and machine operation, making the ST20SS accessible to both experienced machinists and newer operators. Its intuitive interface, proven reliability, and widespread support network contribute to lower training requirements and simplified maintenance procedures.
For manufacturers seeking a production-oriented CNC turning center capable of handling a broad range of precision components while maximizing throughput, the used 2011 HAAS ST20SS remains an excellent investment in the used CNC equipment market.
HAAS ST20SS – AXIS
| SPECIFICATION | DETAILS |
|---|---|
| Axis Configuration | 2-Axis CNC Turning Center |
| X-Axis Travel | 8.40″ |
| Z-Axis Travel | 22.50″ |
| Rapid Traverse X | 1,400 IPM |
| Rapid Traverse Z | 1,400 IPM |
| Machine Design | Super Speed Slant-Bed Lathe |
HAAS ST20SS – WORK CAPACITY
| SPECIFICATION | DETAILS |
|---|---|
| Maximum Cutting Diameter | 13.75″ |
| Maximum Turning Length | 22.50″ |
| Swing Over Front Apron | 21″ |
| Bar Capacity | 2.50″ |
| Chuck Size | 8.3″ Hydraulic Chuck |
HAAS ST20SS – SPINDLE
| SPECIFICATION | DETAILS |
|---|---|
| Maximum Spindle Speed | 4,000 RPM |
| Spindle Motor Power | 20 HP |
| Spindle Nose | A2-6 |
| Spindle Bore | 3.06″ |
| Maximum Torque | 150 ft-lb |
HAAS ST20SS – TURRET
| SPECIFICATION | DETAILS |
|---|---|
| Turret Capacity | 12 Stations |
| Turret Type | Servo-Driven Bolt-On Turret |
| Tool Configuration | OD & ID Tooling |
| Indexing System | High-Speed Servo Indexing |
| Live Tooling Capability | Optional |
HAAS ST20SS – CONTROL SYSTEM
| SPECIFICATION | DETAILS |
|---|---|
| CNC Control | Haas CNC Control |
| Programming Method | Standard G-Code |
| Data Transfer | USB & Ethernet |
| User Interface | Color Display |
| Conversational Features | Available |
HAAS ST20SS – COOLANT & CHIP MANAGEMENT
| SPECIFICATION | DETAILS |
|---|---|
| Coolant Capacity | 55 Gallons |
| Coolant System | Flood Coolant |
| Chip Conveyor | Optional |
| Automatic Lubrication | Standard |
| Production Capability | Continuous Operation |
HAAS ST20SS – POWER REQUIREMENTS
| SPECIFICATION | DETAILS |
|---|---|
| Voltage Requirement | 220V / 440V |
| Electrical Supply | 3 Phase |
| Air Requirement | 100 PSI |
| Air Consumption | 4 SCFM |
| Installation Type | Industrial Manufacturing Facility |
HAAS ST20SS – DIMENSIONS
| SPECIFICATION | DETAILS |
|---|---|
| Machine Length | Approx. 142″ |
| Machine Width | Approx. 80″ |
| Machine Height | Approx. 83″ |
| Approximate Weight | 8,900 lbs |
| Floor Space Requirement | Moderate Footprint |
HAAS ST20SS – GENERAL INFORMATION
| SPECIFICATION | DETAILS |
|---|---|
| Manufacturer | Haas Automation |
| Model | ST20SS |
| Year | 2011 |
| Machine Type | CNC Turning Center |
| Country of Manufacture | USA |
INDUSTRIES THAT USE HAAS ST20SS
| INDUSTRY | APPLICATIONS |
|---|---|
| Aerospace | Precision Turned Hardware |
| Automotive | High-Volume Components |
| Medical | Surgical & Device Parts |
| Electronics | Connector Manufacturing |
| Defense | Mechanical Assemblies |
| General Manufacturing | Production Turning |
TYPICAL PARTS HAAS ST20SS CAN PRODUCE
| PART TYPE | DESCRIPTION |
|---|---|
| Shafts | Precision Rotating Components |
| Hydraulic Fittings | Fluid Power Parts |
| Valve Bodies | Flow Control Components |
| Bushings | Wear Components |
| Aerospace Hardware | Tight-Tolerance Parts |
| Medical Components | Precision Devices |
WHY CHOOSE HAAS ST20SS
| FEATURE | BENEFIT |
|---|---|
| Super Speed Configuration | Reduced Cycle Times |
| High Rapid Traverse Rates | Increased Productivity |
| 20 HP Spindle | Strong Machining Capability |
| 12-Station Turret | Greater Tool Capacity |
| Compact Footprint | Efficient Use of Floor Space |
| Proven Haas Platform | Reliable Operation |
WHY BUY USED HAAS ST20SS
Purchasing a used 2011 HAAS ST20SS provides manufacturers with a highly productive CNC turning solution at a fraction of the cost of a new machine. The Super Speed configuration was specifically developed to reduce non-cutting time, making it particularly valuable in production environments where cycle time reduction directly impacts profitability.
The machine’s combination of rapid axis movement, powerful spindle performance, and efficient turret operation allows manufacturers to complete jobs faster while maintaining high-quality results. This makes the ST20SS especially attractive for shops running repetitive production work or demanding machining schedules.
The robust cast-iron construction ensures long-term durability and stable machining performance. Many ST20SS machines from this era continue operating successfully in production facilities thanks to Haas’s reputation for reliability and ease of maintenance. Replacement parts, service support, and operator familiarity remain widely available throughout the manufacturing industry.
Another advantage is the machine’s versatility. The ST20SS can efficiently machine a broad range of materials and component types, allowing shops to serve multiple industries without requiring specialized equipment. Its flexibility makes it equally useful for production runs, contract manufacturing, and custom machining operations.
For manufacturers seeking a dependable CNC turning center that delivers speed, performance, and long-term value, the HAAS ST20SS remains one of the strongest options available in the used machinery market.
HOW MUCH DOES A USED HAAS ST20SS COST?
The market value of a used 2011 HAAS ST20SS depends on machine condition, spindle hours, maintenance history, tooling inventory, and installed options. Machines equipped with bar feeders, live tooling, chip conveyors, parts catchers, and automation accessories generally command higher resale values.
Buyers typically inspect spindle condition, turret indexing accuracy, machine geometry, lubrication systems, control functionality, and maintenance records before determining market value. Machines with documented service histories and lower operating hours often achieve stronger resale pricing.
A used 2011 HAAS ST20SS commonly sells within an estimated range of $30,000 to $65,000, depending on condition, spindle hours, tooling packages, and included accessories. Well-maintained machines equipped with premium tooling and automation systems may command values toward the upper end of the range.
Even after accounting for rigging, transportation, installation, tooling, and maintenance costs, the HAAS ST20SS continues to provide excellent value by delivering high-speed CNC turning performance, proven Haas reliability, and strong production capability at a significantly lower cost than a comparable new machine.
