Mazak QT-Ez 8
Key Specifications
X Travel
Z Travel
max turning diameter
max machining length
swing over bed
bar capacity
Overview
The Mazak QT-Ez 8 is the base 2-axis 8-inch chuck model in Mazak's value-oriented QT-Ez turning center family. It delivers Mazak build quality and a built-in motor spindle at a price that directly challenges the Haas ST-20 and Doosan Lynx 2600. This is a turning-only machine — no milling, no Y-axis — designed for shops that need a reliable workhorse lathe at an accessible price.
The main spindle delivers 15 kW (20 hp) at up to 4,500 RPM through an A2-6 spindle nose with 52 mm (2.05 in) bar capacity. The built-in motor spindle eliminates belt vibration and reduces maintenance versus belt-driven competitors. The 12-station turret accepts standard bolt-on tooling for turning, boring, grooving, and threading. Max turning diameter is 410 mm (16.13 in) over a 580 mm (22.83 in) swing, with 596 mm (23.47 in) of turning length.
Axis travels are 200 mm (X) and 540 mm (Z) with rapids of 30 m/min on both axes. At approximately 3,500 kg (7,716 lb), the QT-Ez 8 is moderate in weight and keeps the floor space requirements compact. The generous 16-inch max turning diameter accommodates larger chuck work than many competing 8-inch lathes.
Running MAZATROL SmoothEz on a 15-inch touchscreen, the control handles conversational programming and G-code. The QT-Ez 8 is positioned for shops that want Mazak quality and MAZATROL programming in a basic 2-axis lathe without paying for milling capability they don't need. New pricing starts around $65,000-$90,000. Specs sourced from Mazak Corporation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 410 mm (16.13 in) |
| Max Machining Length | 21.22″ |
| Swing Over Bed | 580 mm (22.83 in) |
| Bar Capacity | 52 mm (2.05 in) |
| X-Axis Travel | 200 mm (7.87 in) |
| Z-Axis Travel | 540 mm (21.26 in) |
| Main Spindle Speed | 4,500 RPM |
| Main Spindle Power | 15 kW (20 hp) |
| Main Spindle Nose | A2-6 |
| Tool Stations | 12 |
| Turret Type | Standard bolt-on turret |
| Chuck Size | 12" |
| Rapid Traverse X | 30 m/min (1,181 ipm) |
| Rapid Traverse Z | 30 m/min (1,181 ipm) |
| CNC Control | MAZATROL SmoothEz |
| Machine Weight | 3,500 kg (7,716 lb) |
| Max Machining Diameter | Φ13.5″ |
Specifications sourced from mazak.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Built-in motor spindle eliminates belt vibration and reduces maintenance costs versus belt-driven competitors
- 410 mm max turning diameter accommodates larger chuck work than most competing 8-inch lathes
- MAZATROL SmoothEz conversational control cuts programming time on turned parts
- 596 mm turning length handles shaft-type parts up to 23.5 inches without a long-bed option
- Mazak build quality and nameplate at a price that directly competes with Haas and Doosan
- Compact footprint and moderate weight simplify installation
Limitations
- 52 mm bar capacity is smaller than the 65 mm offered on some competing 8-inch lathes
- No milling, Y-axis, or sub-spindle — purely a 2-axis turning machine
- 15 kW spindle is adequate but not as powerful as the 18.5 kW found on the QTE-200 series
- SmoothEz control lacks some advanced features found on SmoothG
Best For
Frequently Asked Questions
01
Base QT-Ez 8 starts around $65,000-$75,000. Adding chip conveyor, tailstock, high-pressure coolant, and bar feeder interface pushes the price toward $90,000. This is one of the most affordable Mazak turning centers available.
02
Both are economy 8-inch lathes but from different lineups. The QT-Ez 8 has a larger 410 mm max turning diameter but smaller 52 mm bar capacity. The QTE-200 SG has a larger 65 mm bar capacity and 18.5 kW spindle. Choose based on whether bar capacity or max turning diameter matters more.
03
The Haas ST-20 typically costs $5,000-$10,000 less and has a bigger bar capacity at 57 mm. The Mazak offers a built-in motor spindle for smoother cuts and MAZATROL conversational programming. Both are solid value 8-inch lathes.
04
No. The QT-Ez 8 base model does not support milling retrofit. If you think you might need milling, buy the QT-Ez 8M from the start. The turret and spindle architecture are different between the base and M variants.
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