USED HAAS ST40 – 2012
The HAAS ST40 – 2012 is a large-frame CNC turning center designed for machining medium-to-large diameter components while providing a substantial 44-inch turning length. The machine combines a 15-inch hydraulic chuck, large spindle bore, 4-inch bar capacity, 2-speed geared spindle, and a 12-station turret. Documented 2012 machines are available in both standard and higher-performance configurations, including machines equipped with the 55 HP Extra Performance spindle option.
The documented 2012 ST40 provides approximately 34.5 inches of swing over the bed, 25.5 inches of maximum turning diameter, and 44 inches of machining length. X-axis travel is approximately 17 inches and Z-axis travel is 44 inches, with rapid traverse rates of approximately 710 IPM on both axes.
The spindle uses an A2-8 nose, 2-speed gearbox, and 2,400 RPM maximum speed. Standard machines were available with a 40 HP spindle, while the documented 2012 machine with the Extra Performance option has a 55 HP spindle. The same machine is equipped with live tooling, C-axis capability, a programmable servo tailstock, rigid tapping, high-pressure coolant, and a belt-type chip conveyor.
With its large chuck, 4-inch bar capacity, high spindle power, and long turning envelope, the used HAAS ST40 can be suited to production of shafts, flanges, housings, sleeves, bushings, large fittings, and other cylindrical components used in industrial, automotive, energy, and general manufacturing applications.
HAAS ST40 2012 – AXIS
| Specification | Details |
|---|---|
| Machine Configuration | CNC Horizontal Turning Center |
| Number of Axes | 3 on documented live-tooling machine |
| X Axis Travel | 17 in / 432 mm |
| Z Axis Travel | 44 in / 1,118 mm |
| C Axis | Yes, on documented live-tooling machine |
| Y Axis | No |
| CNC Control | Haas CNC Control |
| Turret | 12 Station |
| Tailstock | Programmable Servo |
| Sub Spindle | No |
The standard ST40 is fundamentally a 2-axis turning center, while the documented 2012 machine with live tooling and C-axis is described as a 3-axis configuration.
HAAS ST40 2012 – AXIS TRAVELS / WORK ENVELOPE
| Specification | Details |
|---|---|
| Swing Over Bed | 34.5 in / 876 mm |
| Maximum Turning Diameter | 25.5 in / 648 mm |
| Maximum Turning Length | 44 in / 1,118 mm |
| X Axis Travel | 17 in / 432 mm |
| Z Axis Travel | 44 in / 1,118 mm |
| Center Distance | 44 in |
| X Rapid Traverse | 710 IPM / 18 m/min |
| Z Rapid Traverse | 710 IPM / 18 m/min |
These dimensions are from documented 2012 ST40 machines. Current Haas ST40 specifications have changed over time, so the later-model specifications should not be substituted for this 2012 machine.
HAAS ST40 2012 – CAPACITY
| Specification | Details |
|---|---|
| Chuck Size | 15 in / 381 mm |
| Bar Capacity | 4 in / 102 mm |
| Maximum Turning Diameter | 25.5 in / 648 mm |
| Maximum Turning Length | 44 in / 1,118 mm |
| Swing Over Bed | 34.5 in / 876 mm |
| Center Distance | 44 in |
| Tailstock | Yes |
| Tailstock Type | Programmable Servo |
The 15-inch hydraulic chuck and 4-inch bar capacity give the ST40 substantial workholding and through-spindle capacity for a large-frame CNC lathe.
HAAS ST40 2012 – SPINDLE
| Specification | Details |
|---|---|
| Spindle Type | 2-Speed Geared Head |
| Standard Spindle Motor | 40 HP |
| Documented XP Spindle | 55 HP |
| Maximum Spindle Speed | 2,400 RPM |
| Spindle Nose | A2-8 |
| Spindle Bore | Approximately 4.62 in / 117 mm |
| Bar Capacity | 4 in / 102 mm |
| Maximum Torque | Heavy-Duty Geared Spindle |
The standard ST40 specification lists a 40 HP spindle, while the documented 2012 machine with the Extra Performance option uses a 55 HP spindle. A separate 2012 specification also documents the A2-8 spindle nose and approximately 4.6-inch spindle bore.
HAAS ST40 2012 – MILLING SPINDLE
| Specification | Details |
|---|---|
| Driven Tooling | Yes, on documented machine |
| Live Tooling Speed | 4,000 RPM |
| Live Tool Motor | 12 HP |
| C Axis | Yes |
| Milling Capability | Yes, with live tooling |
| Main Spindle Speed | 2,400 RPM |
| Y Axis | No |
The documented 2012 ST40 is equipped with live tooling and C-axis capability, allowing secondary milling and drilling operations to be performed on the turning center. The live-tooling system is listed at 4,000 RPM with a 12 HP motor.
HAAS ST40 2012 – TOOL CHANGER
| Specification | Details |
|---|---|
| Turret Type | Automatic CNC Turret |
| Turret Capacity | 12 Stations |
| Tooling | Hybrid VDI / BOT on documented machine |
| Live Tooling | Yes |
| Live Tool Holders | 5 documented |
| Extended Tool Pocket | Yes |
| Tool Pre-Setter | Yes |
| Tool Change | Automatic Turret Indexing |
The documented 2012 machine has a 12-station hybrid VDI/BOT turret, live tooling, extended tool pocket, and tool pre-setter. It was supplied with three straight and two 90-degree live holders.
HAAS ST40 2012 – CONTROL SYSTEM
| Specification | Details |
|---|---|
| CNC Control | Haas CNC Control |
| Visual Quick Code | Yes, documented configuration |
| Spindle Load Monitor | Yes |
| Rigid Tapping | Yes |
| Remote MPG | Yes |
| C-Axis Control | Yes, with live tooling |
| Tool Pre-Setter | Yes |
The documented 2012 machines use Haas CNC control, with one listing specifically identifying Visual Quick Code, spindle load monitoring, rigid tapping, and a remote handheld MPG.
HAAS ST40 2012 – COOLANT / CHIP MANAGEMENT
| Specification | Details |
|---|---|
| Chip Conveyor | Belt Type |
| Coolant Tank | Yes |
| Coolant Pump | Yes |
| High-Pressure Coolant | 300 PSI |
| Coolant Capacity | Configuration Dependent |
| Chip Removal | Automatic Conveyor |
| High-Intensity Lighting | Yes |
The documented 2012 live-tooling ST40 includes a belt-type chip conveyor, coolant tank and pump, and 300 PSI high-pressure coolant. Another 2012 machine is also listed with a chip conveyor and 300 PSI coolant pressure.
HAAS ST40 2012 – POWER REQUIREMENTS
| Specification | Details |
|---|---|
| Standard Spindle Motor | 40 HP |
| XP Spindle Motor | 55 HP |
| Spindle Speed | 2,400 RPM |
| Drive System | 2-Speed Gearbox |
| Electrical Service | Verify Individual Machine |
| Power Configuration | Configuration Dependent |
The spindle rating varies according to configuration, with the standard ST40 rated at 40 HP and the documented 2012 machine fitted with the Extra Performance option rated at 55 HP. The exact electrical requirements should be confirmed from the individual machine’s electrical documentation before installation.
HAAS ST40 2012 – DIMENSIONS
| Specification | Details |
|---|---|
| Length | 217 in / 5,512 mm |
| Width | 94 in / 2,388 mm |
| Height | 105 in / 2,667 mm |
| Machine Weight | Approximately 26,000 lb / 11,794 kg |
| Installation Footprint | Verify Individual Machine |
| Service Clearance | Additional Space Required |
The documented 2012 ST40 with live tooling is listed at approximately 217 x 94 x 105 inches and 26,000 pounds. Exact dimensions can vary depending on the machine configuration and accessories installed.
HAAS ST40 2012 – GENERAL INFORMATION
| Specification | Details |
|---|---|
| Manufacturer | HAAS |
| Model | ST40 |
| Year | 2012 |
| Machine Type | CNC Horizontal Turning Center |
| Configuration | 2-Axis / 3-Axis with Live Tooling |
| Swing Over Bed | 34.5 in |
| Maximum Turning Diameter | 25.5 in |
| Maximum Turning Length | 44 in |
| Chuck Size | 15 in |
| Bar Capacity | 4 in |
| X Travel | 17 in |
| Z Travel | 44 in |
| Spindle Speed | 2,400 RPM |
| Standard Spindle | 40 HP |
| XP Spindle | 55 HP |
| Spindle Nose | A2-8 |
| Spindle Bore | Approximately 4.62 in |
| Turret | 12 Station |
| Live Tooling | Yes, documented machine |
| Live Tool Speed | 4,000 RPM |
| Live Tool Motor | 12 HP |
| Tailstock | Programmable Servo |
| CNC Control | Haas |
| Chip Conveyor | Yes |
| High-Pressure Coolant | 300 PSI |
| Rigid Tapping | Yes |
The exact equipment package should be verified for the individual 2012 machine because ST40 machines were available with different spindle, turret, chuck, tailstock, and live-tooling configurations.
INDUSTRIES THAT USE HAAS ST40
The HAAS ST40 is suited to manufacturers that require substantial turning capacity combined with the flexibility of CNC production. Its large chuck, 4-inch bar capacity, high spindle power, and long Z-axis travel make it useful for larger cylindrical components.
Common industries and applications include:
- Automotive manufacturing
- Oil and gas equipment
- Heavy equipment
- Industrial machinery
- Hydraulic equipment
- Power generation
- Agricultural equipment
- Aerospace component manufacturing
- General contract machining
- Metalworking and fabrication
The machine’s 25.5-inch documented turning diameter and 44-inch turning length allow it to accommodate considerably larger components than compact CNC turning centers.
TYPICAL PARTS HAAS ST40 CAN PRODUCE
The HAAS ST40 can be used to manufacture a wide range of large precision-turned components, including:
- Large shafts
- Drive shafts
- Hydraulic cylinders
- Bushings
- Sleeves
- Flanges
- Housings
- Bearing components
- Valve bodies
- Pump components
- Automotive components
- Industrial fittings
- Large rings
- Machinery components
Machines equipped with live tooling and C-axis capability can also perform secondary drilling, tapping, milling, and other cross-machining operations without removing the workpiece from the chuck.
WHY CHOOSE HAAS ST40
The HAAS ST40 provides a combination of large workholding capacity, long turning length, substantial spindle power, and a large spindle bore. The 15-inch chuck, 4-inch bar capacity, 25.5-inch turning diameter, and 44-inch machining length make it a useful platform for larger production components.
The 2012 configuration with the Extra Performance spindle adds a 55 HP motor, while live tooling, C-axis, programmable tailstock, rigid tapping, high-pressure coolant, and chip conveying can further expand the machine’s production capabilities.
WHY BUY USED HAAS ST40
Buying a used HAAS ST40 can give manufacturers access to a large-frame CNC turning center without the capital investment required for a new machine. Its 15-inch chuck and 4-inch bar capacity are particularly useful for shops that regularly work with larger-diameter stock and components.
Many used machines include valuable options such as:
- Haas CNC control
- 15-inch hydraulic 3-jaw chuck
- 12-station turret
- 55 HP Extra Performance spindle
- Live tooling
- C-axis
- 4,000 RPM live tooling
- Programmable servo tailstock
- Rigid tapping
- Tool pre-setter
- Belt-type chip conveyor
- 300 PSI high-pressure coolant
- Extended tool pocket
- Hybrid VDI/BOT turret
- Live tool holders
- Remote handheld MPG
- Bar-feed setup
Before purchasing, buyers should inspect the spindle, gearbox, chuck, turret indexing, live tooling, C-axis, tailstock, ballscrews, guideways, Haas control, tool pre-setter, coolant system, chip conveyor, and machine geometry. The exact options and condition can vary significantly between individual used ST40 machines.
HOW MUCH DOES A USED HAAS ST40 COST?
Public asking prices for used 2012 HAAS ST40 machines are not consistent. Several current and archived listings are offered on a request-for-quote basis rather than with a published asking price. For example, Prestige Equipment currently lists a 2012 ST40 with a 15-inch chuck, 12-station turret, chip conveyor, tool pre-setter, and bar-feed setup as request for quote.
The value of an individual 2012 ST40 can vary considerably depending on whether it has the standard 40 HP spindle or the 55 HP Extra Performance option, as well as live tooling, C-axis, tailstock, high-pressure coolant, tooling, chip conveyor, hours, and overall machine condition. A documented 2012 machine with live tooling and the 55 HP option was sold through Tramar Industries, but no public final sale price was provided.
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