Comparing the Mazak QT-Ez 8MY and the Haas ST-20Y across 7 shared specifications. Values are the manufacturer/model reference figures held in The Machine Blue Book; a specific used unit's year, control, and options may differ.
| Specification | Mazak QT-Ez 8MY | Haas ST-20Y |
|---|---|---|
| X Travel | 8.5 in (216 mm) | 8.40 in (213 mm) |
| Y Travel | 4 in (100 mm) | ± 2.0 in (51 mm) |
| Z Travel | — | 22.50 in (572 mm) |
| Max Spindle Speed | 5000 rpm | 4k |
| Spindle Power | 20 hp (15 kW) | 20.0 hp (15 kW) |
| Spindle Torque | 123 ft-lb (167 N·m) | — |
| Tool Capacity | 12 | 12 Stations |
| Chuck Size | 8 in (203 mm) | 8.3 in (211 mm) |
| Max Turning Diameter | 27.4 in (695 mm) | — |
| Bar Capacity | 2.0 in (51 mm) | 2.50 in (64 mm) |
| Max Workpiece Weight | 440 lb (200 kg) | — |
| Rapid Traverse | — | 472 ipm |
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