Mazak Quick Turn 350MY

$180,000 - $280,000 Updated 2026-03-13

Key Specifications

Max Spindle

3,300 RPM

Spindle Taper

A2-8

Tool Capacity

12-position turret

Weight

7,200 kg (15,873 lb)

Rapid Traverse

30 m/min X, 30 m/min Z

Spindle Power

30 kW (40 hp)

Overview

The Mazak Quick Turn 350MY is a large-frame CNC turning center with milling and Y-axis capability, built for shops that need to process bigger parts with done-in-one efficiency. With a 12-inch chuck and 30 kW (40 hp) spindle, the QT-350MY bridges the gap between standard mid-size lathes and the heavy-duty Slant Turn line.

Max turning diameter is 420 mm (16.54 in) over a 710 mm (27.95 in) swing. Depending on bed length, turning length ranges from 604 mm (23.8 in) on the short bed to 2,106 mm (82.92 in) on the long bed. The main spindle runs up to 3,300 RPM through an A2-8 nose, and the built-in motor design eliminates belt vibration for better surface finish.

The Y-axis provides 120 mm of off-center travel for milling features that sit away from the part centerline. The 12-position turret runs live tools at up to 4,500 RPM with VDI or bolt-on tooling. With 30 kW behind the main spindle, the QT-350MY can take aggressive cuts in steel, stainless, and nickel alloys without slowing down the feed rate.

MAZATROL SmoothG runs the control side with its combination of conversational and G-code programming. The 15-inch touchscreen display makes program editing and monitoring straightforward, and the 3D machining simulation lets you verify toolpaths before cutting metal.

The QT-350MY competes with the Okuma LB3000 EX II MY, Doosan Puma 3100MY, and Haas ST-35Y. It costs more than the Haas but delivers stronger milling performance and a more sophisticated control. The multiple bed length options make it unusually versatile, handling everything from short chucking work to 80-inch shaft jobs on the same platform. Specs sourced from Mazak Corporation published data.

Full Specifications

Parameter	Value
Max Workpiece Diameter	420 mm (16.54 in)
Max Turning Length	604 mm - 2,106 mm (23.8 in - 82.92 in)
Swing Over Bed	710 mm (27.95 in)
Max Spindle Speed	3,300 RPM
Spindle Motor Power	30 kW (40 hp)
Spindle Taper	A2-8
Chuck Size	305 mm (12 in)
Tool Capacity	12-position turret
Milling Spindle Speed	4,500 RPM
Y Axis Travel	120 mm (4.72 in)
X Axis Travel	260 mm (10.24 in)
Z Axis Travel	650 mm - 2,150 mm (25.6 in - 84.6 in)
Rapid Traverse Rate	30 m/min X, 30 m/min Z
Bar Capacity	80 mm (3.15 in)
Machine Weight	7,200 kg (15,873 lb)
CNC Control	MAZATROL SmoothG

Strengths & Limitations

Strengths

Multiple bed lengths from 23.8 to 82.92 inches of turning length make this one of the most versatile large-frame turning centers available
30 kW built-in motor spindle eliminates belt vibration and delivers strong torque for heavy roughing in tough materials
Y-axis with 120 mm travel enables off-center milling work that pure C-axis machines cannot handle
12-inch chuck handles larger diameter chucking work while still fitting in a standard production floor layout
MAZATROL SmoothG control with 3D simulation and conversational programming reduces setup time on short-run jobs
Live tooling capability at 4,500 RPM covers drilling, tapping, and milling without moving parts to a separate VMC

Limitations

Starting around $180K new, the MY configuration carries a significant premium over the base Quick Turn 350
Long-bed versions require substantial floor space, and the machine weight at over 7,200 kg demands proper foundation
4,500 RPM milling spindle speed is adequate for steel and stainless but limits productivity on aluminum milling operations
No sub-spindle option on the MY variant means backworking still requires a second operation or stepping up to an INTEGREX

Best For

Shops processing a mix of short chucking work and long shaft work on a single machine platform Oil and gas component manufacturers turning large-diameter parts with cross-holes and milled features Aerospace landing gear and structural component work requiring heavy stock removal with milling in one setup Production environments needing a large-capacity lathe with Y-axis milling to reduce secondary operations Job shops that want one machine to cover 12-inch chucking through 80-inch between-centers work

Frequently Asked Questions

01 What does a new Mazak Quick Turn 350MY cost?

New pricing runs $180,000-$280,000 depending on bed length and options. The long-bed version costs significantly more than the short bed.

02 What bed lengths are available on the QT-350MY?

Three bed lengths are offered: short bed with 604 mm (23.8 in) turning length, medium bed with 1,594 mm (62.72 in), and long bed with 2,106 mm (82.92 in).

03 How does the QT-350MY compare to the Haas ST-35Y?

The Mazak delivers stronger milling capability, better spindle torque for heavy cutting, and a more sophisticated control. The Haas costs 30-40% less. For heavy-duty production, the Mazak justifies the premium.

04 Can the QT-350MY handle long shaft work?

Yes. The long-bed version offers 2,106 mm (82.92 in) of turning length with tailstock support. A steady rest is available for supporting flexible workpieces.

05 What is the difference between the QT-350M and QT-350MY?

The QT-350M has milling and C-axis but no Y-axis. The QT-350MY adds Y-axis with 120 mm of off-center travel for milling features that do not sit on the part centerline.