HAAS ST-20Y is a versatile CNC turning center designed for precision machining and high productivity in modern manufacturing environments. Built with a rigid slant-bed cast iron structure, the ST-20Y delivers excellent vibration damping and thermal stability, ensuring consistent machining accuracy during high-speed and multi-axis turning operations. The machine is ideal for machining steel, stainless steel, aluminum, and other industrial materials, making it widely used in automotive, aerospace, medical, and general machining applications.
The ST-20Y features a Y-axis and live tooling capability, allowing it to perform milling, drilling, and tapping operations in addition to turning, all in a single setup. This multi-tasking capability significantly reduces part handling, setup time, and production costs. The machine is typically equipped with a high-performance spindle and a fast-indexing turret system that supports efficient tool changes and short cycle times. HAAS CNC controls are known for their intuitive interface, high-speed processing, and user-friendly programming, making the ST-20Y easy to operate while delivering excellent repeatability and surface finish quality.
This HAAS ST-20Y is available in California, making it an attractive option for North American manufacturers seeking quick delivery and simplified logistics. Machines located in California are often preferred by U.S. buyers due to easier inspection opportunities, faster shipping, and reduced import complexities. This makes the ST-20Y a strong choice for shops looking to expand turning and milling capacity with minimal lead time.
HAAS ST20YSPECIFICATIONS
TRAVEL & CAPACITY
Max Turning Diameter: 298 mm (11.75 in)
Max Turning Length: 572 mm (22.5 in)
Bar Capacity: 64 mm (2.5 in)
X-Axis Travel: 213 mm (8.4 in)
Y-Axis Travel: ±51 mm (±2.0 in)
Z-Axis Travel: 584 mm (23 in)
B-Axis (sub-spindle, optional): Varies by configuration
C-Axis: 360° interpolation and indexing
SPINDLE
Type: A2‑6 spindle nose
Bore Size: 76 mm (3 in)
Max Speed: 4,000 rpm
Spindle Power: 22.4 kW (30 hp) vector drive
Max Torque: 270 Nm
TURRET / TOOLING
Type: 12-station hybrid VDI turret
Live Tooling Speed: Up to 6,000 rpm
Tooling: Radial, axial, and facing toolholders supported
Indexing Time: ~0.5 sec
Tooling Interface: VDI 40 or BMT (depending on configuration)
General Job Shops (valves, fittings, custom fasteners)
Oil & Gas (threaded couplings, nozzles, connectors)
TYPICAL PARTS HAAS ST20Y CAN PRODUCE
Turned-milled shafts with keyways or slots
Flanged components with radial holes
Eccentric or offset features on cylindrical parts
Complex hydraulic and pneumatic fittings
High-precision threaded connectors
WHY CHOOSE THE HAAS ST20Y
Combines turning and milling in one compact machine
Reduces part handling, setup time, and error margins
Y-axis adds production flexibility for multi-feature parts
Strong cost-to-performance ratio in the mill-turn segment
Easy to program using Haas NGC with live tooling support
Reliable U.S.-built machine backed by Haas support network
Summary Table
Parameter
Value
Max Turning Dia
298 mm (11.75 in)
Max Turning Length
572 mm (22.5 in)
Bar Capacity
64 mm (2.5 in)
Spindle Power
22.4 kW (30 hp)
Spindle Speed
4,000 rpm
Y-Axis Travel
±51 mm (±2.0 in)
Live Tooling Speed
Up to 6,000 rpm
Tool Stations
12 (hybrid turret)
C-Axis Capability
360° interpolation and indexing
Control System
Haas Next-Gen Control
How much does used HAAS ST20Y cost? Used Machine Price Range (Approximate)
Configuration
Estimated Price (USD)
Base Model (live tooling, no sub-spindle)
$55,000 – $70,000
Mid-Spec (probing, high-pressure coolant)
$70,000 – $85,000
Full-Spec (sub-spindle, bar feeder ready)
$85,000 – $105,000+
Prices vary depending on build year, spindle hours, tool count, and installed options.
WHY BUY USED HAAS ST-20Y
Buying a used HAAS ST-20Y can provide significant cost savings compared to purchasing new equipment while still delivering advanced turning and milling capabilities. Pre-owned machines located in California offer added advantages such as faster availability, lower transportation risk, and easier verification. With proper inspection, servicing, and calibration, a used ST-20Y can deliver reliable long-term performance, making it a smart investment for manufacturers focused on productivity, flexibility, and return on capital.
