Yamazaki Mazak CNC Lathes / Turning Centers

Mazak QT-Ez 8M

Est. $80,000 - $120,000 Specs verified 2026-10-02 · mazak.com Updated 2026-10-02

Image: mazak.com, Yamazaki Mazak

Key Specifications

X Travel

9 in (229 mm)

Z Travel

24 in (610 mm)

Max Spindle

6,000 rpm

Tool Capacity

12 tools

Max Turn Length

21 in (533 mm)

max swing

Ø27 in (686 mm)

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

Estimated price range

Est.$80,000 - $120,000

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 8M is an 8 in chuck turning center on Mazak's bed length class 20, with a Ø14 in (356 mm) maximum turning diameter, a 21 in (533 mm) maximum turning length and a 6,000 rpm spindle. Swing is Ø27 in (686 mm), bar capacity is Ø2 in (51 mm) and the turret takes 12 tools.

What separates it from the larger-chuck M models is speed and bar size, not envelope. The QT-Ez 10M has the same Ø14 in (356 mm) turning diameter, 9 in (229 mm) of X and 24 in (610 mm) of Z, but its 10 in chuck stops at 4,200 rpm and its bar capacity is Ø3 in (76 mm). The 8M is the pick for small-diameter work that needs revolutions to hold surface speed, and it gives up the bigger bar to get them.

The spindle motor is 15 kW (20 HP) on a 30 min. rating. Mazak's table for this model gives no continuous figure and no torque, so plan sustained roughing below that number and ask for the torque curve if the work is heavy at low speed. The table also has no Y-axis or second-spindle rows. Those belong to the QT-Ez 8MY, which lists 4 in (102 mm) of Y travel, and the QT-Ez 8MSY, which adds a second spindle with a 5 in chuck.

Mazak's QT-Ez series page lists an automatic tool eye, high/low chuck pressure switching, an automatic door, a chip conveyor, a mist collector, coolant temperature control and the SUPERFLOW 1000 psi high-pressure coolant system. The page gives these for the series as a whole and does not say which are fitted to the 8M as standard, so have each one written into the quotation.

Full Specifications

Parameter	Value
Max Swing	Ø27 in (686 mm)
Max Turning Diameter	Ø14 in (356 mm)
Max Turning Length	21 in (533 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)
Tool Capacity	12 tools
X-Axis Travel	9 in (229 mm)
Z-Axis Travel	24 in (610 mm)

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

Strengths & Limitations

Strengths

6,000 rpm spindle on an 8 in chuck, against 4,200 rpm on the 10 in chuck QT-Ez 10M
Ø14 in (356 mm) maximum turning diameter and Ø27 in (686 mm) swing, the same envelope figures the larger-chuck QT-Ez 10M lists
24 in (610 mm) of Z travel against a 21 in (533 mm) maximum turning length, which leaves stroke for tool clearance at the ends of the part
12-tool turret with 9 in (229 mm) of X travel
15 kW (20 HP) spindle motor on a 30 min. rating, the same figure the 10 in chuck QT-Ez 10M carries

Limitations

Bar capacity is Ø2 in (51 mm); the QT-Ez 10M passes Ø3 in (76 mm)
The 15 kW (20 HP) figure is a 30 min. rating, and the table states no continuous power and no spindle torque
No Y-axis travel in the table; off-centre features need the QT-Ez 8MY with its 4 in (102 mm) of Y
Mazak's table for this model gives no rapid traverse, weight or floor-space figure, so those have to come with the quotation

Best For

Bar-fed parts up to Ø2 in (51 mm) run at up to 6,000 rpm Chucked parts within a Ø14 in (356 mm) turning diameter Shaft work inside the 21 in (533 mm) maximum turning length Jobs that fit on 12 tools in one setup

Frequently Asked Questions

01 What size work does the QT-Ez 8M take?

It has an 8 in chuck, a Ø27 in (686 mm) swing, a Ø14 in (356 mm) maximum turning diameter and a 21 in (533 mm) maximum turning length. Bar capacity through the spindle is Ø2 in (51 mm). Axis travel is 9 in (229 mm) in X and 24 in (610 mm) in Z.

02 How much spindle power does the QT-Ez 8M have?

The table lists 15 kW (20 HP) as a 30 min. rating, at up to 6,000 rpm. It gives no continuous rating and no torque figure. For long roughing cuts, size the job on less than the 30 min. figure and ask Mazak for the continuous rating and the torque curve.

03 How does the QT-Ez 8M differ from the QT-Ez 10M?

Chuck, speed and bar. The QT-Ez 10M has a 10 in chuck, 4,200 rpm, Ø3 in (76 mm) bar capacity and a 20 in (508 mm) maximum turning length. The 8M has an 8 in chuck, 6,000 rpm, Ø2 in (51 mm) bar capacity and 21 in (533 mm) of turning length. Turning diameter, swing, X and Z travel and the 12-tool turret are the same on both.

04 What do the QT-Ez 8MY and 8MSY add to the 8M?

The QT-Ez 8MY table adds 4 in (102 mm) of Y travel and lists a 22 in (559 mm) maximum turning length. The QT-Ez 8MSY has the same Y travel plus a second spindle with a 5 in chuck, 6,000 rpm and 7.5 kW (10 HP) on a 30 min. rating, and 23 in (584 mm) of W-axis travel. Chuck size, spindle speed and bar capacity match the 8M.

05 What equipment does Mazak list for the QT-Ez series?

The series page names an automatic tool eye, high/low chuck pressure switching, automatic door, extra work light, 3-color signal tower, chip conveyor, air hose prep, an additional head-side coolant nozzle, mist collector, coolant temperature control and SUPERFLOW 1000 psi high-pressure coolant. It does not state which are standard on the 8M, so confirm each one.