Mazak MEGA TURN 900M

$350,000 - $500,000 Updated 2026-03-19

Key Specifications

Max Spindle

1,250 RPM

Spindle Power

30 kW (40 hp) at 40% ED

max turning diameter

920 mm (36.2 in)

max turning height

800 mm (31.5 in)

max swing

1,000 mm (39.4 in)

max workpiece weight

3,000 kg (6,614 lb)

Overview

The Mazak MEGA TURN 900M is the milling-equipped variant of the Mega Turn 900 vertical turning center, adding a dedicated milling spindle to the base VTL platform for true mill-turn capability on large-diameter workpieces. Where the standard 900 is a pure turning machine, the 900M allows drilling, tapping, contour milling, and off-center machining without moving heavy parts to a second machine — a significant advantage when workpieces weigh up to 3,000 kg (6,614 lb).

The vertical spindle orientation handles a maximum turning diameter of 920 mm (36.2 in) with 800 mm (31.5 in) of turning height and 1,000 mm (39.4 in) of swing. The main turning drive delivers 30 kW (40 hp) at 40% ED with 3,655 Nm (2,696 ft-lb) of torque, supporting aggressive roughing cuts in cast iron, carbon steel, and alloy steel at material removal rates up to 960 cm³/min. Maximum spindle speed is 1,250 RPM, appropriate for the large-diameter work this machine targets.

The 12-station drum turret integrates a milling spindle that enables C-axis interpolation for polar coordinate milling, drilling patterns, and tapping operations directly on the vertical turning platform. This eliminates the crane move, refixturing, and datum pickup that would otherwise be required to transfer a 3,000 kg workpiece to a boring mill or machining center for secondary operations.

The MAZATROL SmoothG CNC provides conversational programming for both turning and milling operations, simplifying setup for operators who need to switch between pure turning cycles and mill-turn programs. Rapid traverse reaches 24 m/min on both X and Z axes. The 900M competes with the Okuma V920EX, DMG Mori CTV 400, and Doosan Puma V8300M. New machines price between $350,000 and $500,000 depending on milling spindle options and tooling configuration.

Full Specifications

Parameter	Value
Max Turning Diameter	920 mm (36.2 in)
Max Turning Height	800 mm (31.5 in)
Max Swing	1,000 mm (39.4 in)
Max Workpiece Weight	3,000 kg (6,614 lb)
Max Spindle Speed	1,250 RPM
Spindle Motor Power	30 kW (40 hp) at 40% ED
Spindle Torque	3,655 Nm (2,696 ft-lb)
Material Removal Rate	960 cm³/min
Rapid Traverse X	24 m/min (945 ipm)
Rapid Traverse Z	24 m/min (945 ipm)
Turret Type	12-station drum turret with milling spindle
Milling Capability	C-axis interpolation, drilling, tapping, contour milling
Chuck Size	Φ49.21" to Φ59.06"
Machine Orientation	Vertical spindle
CNC Control	MAZATROL SmoothG CNC
Machine Weight	12,500 kg (27,558 lb) approx.
Model	1: Diameter
500 500s 500m 500ms	Φ19.69" × H18.11"
600 600s	Φ24.8" × H21.65"
600m 600ms	Φ23.62" × H21.65"
900 900s 900m 900ms	Φ36.22" × H31.5"
1600 1600m	Φ64.96" × H35.43"
Max Machining Diameter	Φ64.96"
Max Machining Height	35.43"

Specifications sourced from mazak.com — verified 2026-03-28

Strengths & Limitations

Strengths

Integrated milling spindle eliminates the need to crane-transfer 3,000 kg workpieces to a separate machining center for drilling, tapping, and milling operations
3,655 Nm of spindle torque enables aggressive roughing in cast iron and steel with material removal rates up to 960 cm³/min on large-diameter parts
Vertical spindle orientation uses gravity to naturally seat heavy workpieces in the chuck, simplifying loading and improving concentricity without complex fixturing
C-axis interpolation supports polar coordinate milling, bolt-hole patterns, and contour milling directly on the VTL platform in a single setup
920 mm turning diameter with 1,000 mm swing handles large castings, forgings, and flanges common in energy, aerospace, and heavy equipment applications
MAZATROL SmoothG conversational CNC simplifies programming for both turning and milling operations, reducing setup time for combined cycle programs

Limitations

Milling spindle capability is limited compared to a dedicated machining center — suitable for drilling, tapping, and light milling but not heavy 3D contouring on hardened materials
At 1,250 RPM maximum spindle speed, the 900M is restricted to large-diameter work and cannot efficiently turn small-diameter features at high surface speeds
Vertical orientation requires overhead crane access for loading and unloading, adding infrastructure requirements for shops without existing crane coverage
12,500 kg machine weight requires substantial foundation preparation and limits placement flexibility within the shop floor

Best For

Energy sector manufacturers machining large valve bodies, flanges, and pump housings that need both turning and drilling/tapping in a single setup Aerospace shops turning and milling large landing gear components, engine casings, and structural rings without crane-transferring between machines Heavy equipment manufacturers producing bearing housings, gearbox components, and hydraulic cylinders requiring bolt-hole patterns and cross-drilling on turned parts Job shops specializing in large-diameter work that want to reduce total cycle time by completing turning and milling in one clamping Foundries and forge shops finishing large castings that need both OD/ID turning and secondary milling operations without refixturing

Frequently Asked Questions

01 What is the difference between the Mega Turn 900 and 900M?

The standard Mega Turn 900 is a 2-axis vertical turning center for pure turning operations. The 900M adds a milling spindle with C-axis interpolation, enabling drilling, tapping, and contour milling on the turned workpiece. This eliminates the need to crane-transfer heavy parts to a machining center for secondary operations. The 900M typically costs $50,000-$80,000 more than the base 900.

02 What does a new Mazak MEGA TURN 900M cost?

New MEGA TURN 900M machines start around $350,000 for standard configurations. Full configurations with high-pressure coolant, probing, chip conveyor upgrades, and automation integration can reach $450,000-$500,000. Used units from 2016-2022 trade between $175,000 and $325,000 depending on hours and condition.

03 What milling operations can the 900M perform?

The 900M milling spindle supports drilling, tapping, reaming, and contour milling via C-axis interpolation. It handles bolt-hole patterns, keyways, flats, and cross-drilling. However, it is not a substitute for a full machining center on heavy 3D contouring or high-speed aluminum milling. It is best suited for secondary operations that would otherwise require transferring a heavy workpiece to a separate machine.

04 How does the MEGA TURN 900M compare to the Okuma V920EX?

Both are capable VTLs in the 900mm class with milling capability. The Mazak offers high torque and MAZATROL conversational control. The Okuma V920EX features the Thermo-Friendly Concept for thermal stability and the open-architecture OSP control. Selection typically comes down to control preference, existing fleet standardization, and local dealer support.