HAAS ST - 20Y
The HAAS ST-20Y offers high precision and versatility for various machining needs. With a travel range of 8.40 inches (X-axis), ±2.0 inches (Y-axis), and 22.50 inches (Z-axis), it accommodates large parts with a chuck size of 8.3 inches and a maximum swing of 21 inches. It supports precise cutting with a 5 hp main spindle, 6000 rpm sub-spindle, and a max cutting diameter of 11.75 inches. The machine is designed for high-speed, efficient operations, making it ideal for complex part production.
For a detailed specification breakdown, see the table below:
Specification Table
| Category | Parameter | S.A.E | Metric |
|---|---|---|---|
| TRAVELS | X Axis | 8.40 in | 213 mm |
| Y Axis | ± 2.0 in | ± 51 mm | |
| Z Axis | 22.50 in | 572 mm | |
| CAPACITIES | Chuck Size | 8.3 in | 210 mm |
| Max Part Swing | 21.0 in | 533 mm | |
| Max Cutting Diameter (with BMT65 turret) | 11.75 in | 298 mm | |
| Max Cutting Length (varies with workholding) | 22.5 in | 572 mm | |
| Bar Capacity | 2.50 in | 64 mm | |
| MAIN SPINDLE C AXIS | Max Rating | 5.0 hp | 3.7 kW |
| Max Speed | 60 rpm | 60 rpm | |
| Positioning (±) | 0.01° | 0.01° | |
| Brake Diameter | 13.9 in | 353 mm | |
| Brake Holding Torque | 250 ft-lbf | 339 Nm | |
| Control Type | Interpolated Motion and Positioning | Interpolated Motion and Positioning | |
| SUB-SPINDLE | Chuck Size | 5.3 in | 135 mm |
| Spindle Nose | A2-5 | A2-5 | |
| Max Speed | 6000 rpm | 6000 rpm | |
| Max Sync Speed w/Main Spindle | 4800 rpm | 4800 rpm |
