Mazak QT-Ez 8MSY
Key Specifications
X Travel
Y Travel
Z Travel
max turning diameter
max machining length
swing over bed
Overview
The Mazak QT-Ez 8MSY is the fully loaded variant of the value-oriented QT-Ez 8-inch turning center, combining milling, sub-spindle, and Y-axis for complete done-in-one part processing. This is the most capable 8-inch machine in the QT-Ez family, providing front-and-back machining with off-center milling at a price well below the Quick Turn platform.
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 sub-spindle provides 11 kW (15 hp) at 6,000 RPM for backworking operations. The 12-station turret runs live tools at 6,000 RPM with 3.7 kW (5 hp), and the Y-axis provides 100 mm (+50/-50 mm) of off-center travel. C-axis indexing is 0.0001-degree resolution on both spindles. Max turning diameter is 343 mm (13.5 in) with 569 mm (22.4 in) turning length.
Axis travels are 200 mm (X), 100 mm (Y), and 540 mm (Z) with rapids of 30 m/min on X and Z, and 10 m/min on Y. At approximately 5,000 kg (11,023 lb), the QT-Ez 8MSY is the heaviest machine in the QT-Ez 8 lineup. The MAZATROL SmoothEz control on a 15-inch touchscreen handles synchronized dual-spindle Y-axis programming through conversational cycles.
The QT-Ez 8MSY competes with the Haas DS-30SSY, Doosan Lynx 2600LMSYB, and DN Solutions Puma DNT 2100 MB. New pricing runs $130,000-$180,000. This machine has drawn strong reviews from Practical Machinist forum members for its value-to-capability ratio. Specs sourced from Mazak Corporation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 343 mm (13.5 in) |
| Max Machining Length | 569 mm (22.4 in) |
| Swing Over Bed | 580 mm (22.83 in) |
| Bar Capacity | 52 mm (2.05 in) |
| X-Axis Travel | 200 mm (7.87 in) |
| Y-Axis Travel | 100 mm (±50 mm) |
| 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 |
| Sub Spindle Speed | 6,000 RPM |
| Sub Spindle Power | 11 kW (15 hp) |
| Live Tool Speed | 6,000 RPM |
| Live Tool Power | 3.7 kW (5 hp) |
| Tool Stations | 12 |
| Turret Type | BMT 55 or bolt-on live tooling turret with Y-axis |
| Chuck Size | 8 in (203 mm) |
| C Axis Resolution | 0.0001 degrees |
| Rapid Traverse X | 30 m/min (1,181 ipm) |
| Rapid Traverse Y | 10 m/min (394 ipm) |
| Rapid Traverse Z | 30 m/min (1,181 ipm) |
| CNC Control | MAZATROL SmoothEz |
| Machine Weight | 5,000 kg (11,023 lb) |
Specifications sourced from mazakusa.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Full MSY configuration delivers done-in-one machining with sub-spindle, Y-axis, and C-axis at value pricing
- Built-in motor spindle on both main and sub-spindle eliminates belt vibration and maintenance
- Y-axis with 100 mm travel enables hex flats, D-cuts, and eccentric holes on both spindle faces
- BMT 55 turret option provides excellent milling rigidity for off-center operations
- MAZATROL SmoothEz simplifies complex MSY programming through conversational cycles
- Competitive pricing delivers full MSY capability at Haas DS-30SSY pricing with Mazak build quality
Limitations
- 52 mm bar capacity limits bar stock size compared to 65 mm on QTE-200MSY and some competitors
- 15 kW main spindle power is modest for aggressive roughing on harder materials at larger diameters
- 3.7 kW live tool power restricts milling to lighter operations compared to the QTE-300MSY's 5.5 kW
- SmoothEz control lacks some advanced SmoothG features including detailed simulation
Best For
Frequently Asked Questions
01
New QT-Ez 8MSY machines run $130,000-$180,000 depending on options. This is the top-of-line QT-Ez 8 configuration. Prices overlap with the QTE-200MSY and entry-level Quick Turn MSY models, so compare all three when quoting.
02
Both are 8-inch MSY turning centers in the same price range. The Mazak offers a built-in motor spindle, BMT tooling option, and MAZATROL conversational programming. The Haas has a larger 57 mm bar capacity and wider North American service network. Both deliver competitive done-in-one capability.
03
Yes. With a bar feeder, the MSY handles automatic part handoff between spindles, completes all front, back, and Y-axis milling operations, and drops finished parts into a catcher. Budget $12,000-$25,000 for a compatible bar feeder.
04
The QTE-200MSY has a larger 65 mm bar capacity and 18.5 kW spindle. The QT-Ez 8MSY has a slightly larger max turning diameter. Both use SmoothEz and similar live tooling specs. The QTE-200MSY is typically the better choice for bar-fed production; the QT-Ez 8MSY may be better for chuck work.
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