Yamazaki Mazak CNC Lathes / Turning Centers

Mazak QT-Ez 8MSY

Est. $130,000 - $180,000 Specs verified 2026-10-02 · mazak.com Updated 2026-10-02

Image: mazak.com, Yamazaki Mazak

Key Specifications

X Travel

9 in (229 mm)

Y Travel

4 in (102 mm)

Z Travel

24 in (610 mm)

Max Spindle

6,000 rpm

Tool Capacity

12 tools

Max Turn Length

22 in (559 mm)

How much does the Mazak QT-Ez 8MSY cost?

Estimated price range

Est.$130,000 - $180,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from Yamazaki Mazak. Configuration moves it a long way.

Overview

The Mazak QT-Ez 8MSY pairs an 8 in chuck main spindle with a 5 in chuck second spindle, both running to 6,000 rpm, and puts 4 in (102 mm) of Y travel on the tool side. Its table carries rows the single-spindle QT-Ez models do not have: a second-spindle chuck, speed and motor, and W-axis travel.

Because the second spindle matches the main spindle's 6,000 rpm, a part can be handed across without slowing the first operation, and the back can be turned at the same speed as the front. The motors are not equal. The main spindle has 15 kW (20 HP) and the second 7.5 kW (10 HP), both on a 30 min. rating, so heavy stock removal belongs on the main side. The 5 in chuck also sets how large a diameter can be gripped for the back operation.

The working envelope is a Ø14 in (356 mm) maximum turning diameter, a 22 in (559 mm) maximum turning length, a Ø27 in (686 mm) swing and Ø2 in (51 mm) of bar capacity. X travel is 9 in (229 mm) and Z is 24 in (610 mm). W-axis travel, the row that comes with the second spindle, is 23 in (584 mm). The table lists 12 tools, and that count has to cover both ends of the part.

The QT-Ez 10MSY is the same layout one chuck size up: a 10 in main chuck at 4,200 rpm, a 6 in second chuck and Ø3 in (76 mm) of bar capacity, on the same travels. Choose between the two on bar diameter and on how much speed the part needs. Mazak's series page names a chip conveyor, an automatic door, an automatic tool eye and SUPERFLOW 1000 psi high-pressure coolant among the series equipment, without stating what is standard on this model.

Full Specifications

Parameter	Value
Max Swing	Ø27 in (686 mm)
Max Turning Diameter	Ø14 in (356 mm)
Max Turning Length	22 in (559 mm)
Max Bar Capacity	Ø2 in (51 mm)
Chuck Size	8 in
Max Spindle Speed	6,000 rpm
Spindle Power Intermittent	15 kW (20 HP) (30 min. rating)
Sub Spindle Chuck Size	5 in
Sub Spindle Speed	6,000 rpm
Sub Spindle Power Intermittent	7.5 kW (10 HP) (30 min. rating)
Tool Capacity	12 tools
X-Axis Travel	9 in (229 mm)
Y-Axis Travel	4 in (102 mm)
Z-Axis Travel	24 in (610 mm)
W Axis Travel	23 in (584 mm)

Specifications sourced from mazak.com — verified 2026-10-02

Strengths & Limitations

Strengths

Second spindle with a 5 in chuck runs to 6,000 rpm, the same top speed as the 8 in main spindle
4 in (102 mm) of Y travel for features off the spindle centreline
23 in (584 mm) of W-axis travel against a 22 in (559 mm) maximum turning length
6,000 rpm main spindle with 15 kW (20 HP) on a 30 min. rating; the QT-Ez 10MSY stops at 4,200 rpm
Ø27 in (686 mm) swing and Ø14 in (356 mm) maximum turning diameter on an 8 in chuck machine

Limitations

The second-spindle motor is 7.5 kW (10 HP) on a 30 min. rating, half the main spindle's 15 kW (20 HP), so back-side roughing is limited
Ø2 in (51 mm) bar capacity; the QT-Ez 10MSY takes Ø3 in (76 mm)
The table lists 12 tools in total for front and back operations, which is tight on parts with long operation lists
No rotary-tool speed or power rows and no continuous spindle rating in the table; request them before committing parts with heavy cross drilling or milling

Best For

Bar parts up to Ø2 in (51 mm) finished on both ends in one cycle Parts needing front and back turning at up to 6,000 rpm Features off the centreline within 4 in (102 mm) of Y travel Second-operation work that grips in a 5 in chuck

Frequently Asked Questions

01 What is the second spindle on the QT-Ez 8MSY?

It carries a 5 in chuck, runs to 6,000 rpm and has a 7.5 kW (10 HP) motor on a 30 min. rating. The main spindle has an 8 in chuck, the same 6,000 rpm limit and 15 kW (20 HP) on a 30 min. rating. W-axis travel is 23 in (584 mm).

02 How much Y-axis travel does the QT-Ez 8MSY have?

4 in (102 mm). X travel is 9 in (229 mm) and Z travel is 24 in (610 mm). Mazak's table does not break the Y figure into plus and minus strokes, so check the split if a feature sits far to one side of centre.

03 How is the QT-Ez 8MSY different from the QT-Ez 8MY?

The QT-Ez 8MY has the same 8 in chuck, 6,000 rpm spindle, 4 in (102 mm) of Y and 22 in (559 mm) maximum turning length, but its table has no second-spindle or W-axis rows. The 8MSY adds the 5 in chuck second spindle and 23 in (584 mm) of W travel, so the back of the part is machined without a second setup.

04 Should I look at the QT-Ez 10MSY instead?

The QT-Ez 10MSY has a 10 in main chuck, a 6 in second chuck and Ø3 in (76 mm) bar capacity, with the main spindle limited to 4,200 rpm. The 8MSY has Ø2 in (51 mm) bar capacity and 6,000 rpm. Turning diameter, turning length and the X, Y, Z and W travels are the same, so the choice comes down to bar size against speed.

05 What size parts fit the QT-Ez 8MSY?

Maximum turning diameter is Ø14 in (356 mm), maximum turning length is 22 in (559 mm) and swing is Ø27 in (686 mm). Bar stock up to Ø2 in (51 mm) passes through the main spindle, and the second spindle grips in a 5 in chuck.