The Haas ST‑30 is a robust, mid-sized CNC turning center designed for shops that require increased capacity, power, and performance for demanding turning operations. Positioned between the smaller ST‑20 and the larger ST‑40, the ST‑30 strikes an ideal balance of spindle strength, chuck size, and bar capacity, making it one of Haas’ most popular lathes for general-purpose and heavy-duty applications.
With a powerful 40 hp vector spindle drive, 10″ chuck, and generous bar capacity, the ST‑30 can handle a wide variety of materials including steel, aluminum, stainless steel, and even exotic alloys. It’s built on a one-piece cast-iron base for rigidity and thermal stability, ensuring tight tolerances and long-term durability.
This machine is a favorite in aerospace, oil & gas, automotive, energy, and job shop industries where strength, simplicity, and versatility matter. The ST‑30 is also available in Y-axis (ST‑30Y) and sub-spindle configurations, making it adaptable to multi-operation environments.
HAAS ST30SPECIFICATIONS
TRAVEL & CAPACITY
Max Turning Diameter: 406 mm (16 in)
Max Turning Length: 660 mm (26 in)
Bar Capacity: 76 mm (3 in)
X-Axis Travel: 318 mm (12.5 in)
Z-Axis Travel: 660 mm (26 in)
C-Axis: Not available on base model (only on ST-30Y)
SPINDLE
Spindle Nose: A2‑6
Chuck Size: 254 mm (10 in)
Bore Size: 89 mm (3.5 in)
Max Spindle Speed: 3,400 rpm
Spindle Power: 29.8 kW (40 hp) vector drive
Max Torque: ~407 Nm
TURRET / TOOLING
Tool Stations: 12 (bolt-on or VDI)
Index Time: ~0.5 sec (adjacent tools)
Tool Interface: VDI 40 or optional BMT (on newer builds)
FEEDRATES
Rapid Traverse (X/Z): 25.4 m/min (1,000 ipm)
Cutting Feedrates: Programmable
COOLANT & CHIP MANAGEMENT
Flood Coolant: Standard
High-Pressure Coolant: Optional
Chip Conveyor or Auger: Optional
CONTROL SYSTEM
CNC: Haas Next-Gen Control
Display: 15” LCD
USB, Ethernet, Wi-Fi ready
Optional Tool Presetters and Part Probing
POWER & AIR REQUIREMENTS
Electrical Power: ~30 – 35 kVA
Air Pressure: ~0.5 – 0.6 MPa (75–90 psi)
HAAS ST30 – GENERAL INFORMATION
Model: Haas ST‑30
Machine Type: Horizontal CNC Lathe
Spindle Nose: A2‑6
Chuck Size: 254 mm (10 in)
Control: Haas Next-Generation Control (NGC)
Construction: Heavy-duty, cast-iron frame
HAAS ST30 – KEY CAPABILITIES
High-power turning for mid-to-large parts
Excellent rigidity for tough materials
Live tooling and Y-axis options (in ST-30Y variant)
Through-spindle coolant and bar feeding compatibility
Versatile machine for small batch or high-volume production
INDUSTRIES THAT USE HAAS ST30
Oil & Gas (threaded connections, couplings, valve components)
