Mazak INTEGREX i-350H AG

$520,000 - $750,000 Updated 2026-03-16

Key Specifications

X Travel

730 mm (28.7 in)

Y Travel

260 mm (10.24 in)

Z Travel

1,524 mm (60 in)

Tool Capacity

40 tools (80 or 120 optional)

max machining diameter

760 mm (29.9 in)

max machining length

1,524 mm (60 in)

Overview

The Mazak INTEGREX i-350H AG is a specialized multi-tasking machine that adds gear cutting capability to the large-frame i-350H platform. The AG (Advanced Gear) designation means this machine can produce spur gears, helical gears, worm gears, and splines directly on the multi-tasking platform using skiving, hobbing-style interpolation, and power skiving cycles — eliminating the need for dedicated gear cutting machines in many applications.

The main turning spindle delivers 30 kW (40 hp) at 3,600 RPM through a 12-inch chuck with 102 mm (4.02 in) bar capacity. The second spindle provides 22 kW (30 hp) at 3,600 RPM. The milling spindle runs at 12,000 RPM with 22 kW (30 hp) through Capto C6 tooling. For gear cutting operations, the milling spindle and C-axis synchronize at high precision to execute gear tooth profiles through interpolated tool paths rather than traditional hobbing.

Axis travels span 730 mm (28.7 in) on X, 1,524 mm (60 in) on Z, and 260 mm (10.24 in) on Y. The B-axis provides 240 degrees of travel with 0.0001-degree resolution. Maximum machining diameter is 760 mm (29.9 in) with 1,524 mm maximum machining length. The standard 40-tool ATC expands to 80 or 120 positions, accommodating the dedicated gear cutting tools alongside standard turning and milling tooling.

The MAZATROL SmoothAi CNC includes dedicated gear cutting cycles (SmoothGear Cutting) that simplify programming of gear profiles from basic gear data input rather than requiring specialized gear cutting CAM software. The machine weighs approximately 19,000 kg (41,888 lb) with a footprint of roughly 6.0 x 3.0 meters. Competitors include the DMG Mori NTX 2500 with gearSKIVING, Okuma MULTUS with gear cutting option, and Index G420 with gear skiving. New machines price between $520,000 and $750,000, with limited used availability due to the specialized nature of the AG configuration.

Full Specifications

Parameter	Value
Max Machining Diameter	760 mm (29.9 in)
Max Machining Length	1,524 mm (60 in)
X-Axis Travel	730 mm (28.7 in)
Y-Axis Travel	260 mm (10.24 in)
Z-Axis Travel	1,524 mm (60 in)
B Axis Range	240° (-30° to +210°)
C Axis Rotation	360° continuous (both spindles)
Main Spindle Speed	3,600 RPM
Main Spindle Power	30 kW (40 hp)
Second Spindle Speed	3,600 RPM
Second Spindle Power	22 kW (30 hp)
Milling Spindle Speed	12,000 RPM (20,000 RPM optional)
Milling Spindle Power	22 kW (30 hp)
Milling Spindle Taper	Capto C6
Chuck Size	12 in (main) / 10 in (second)
Bar Capacity	102 mm (4.02 in)
Tool Capacity	40 tools (80 or 120 optional)
Rapid Traverse Xz	36 m/min (1,417 ipm)
Rapid Traverse Y	28 m/min (1,102 ipm)
Gear Cutting	SmoothGear Cutting (skiving, hobbing interpolation, power skiving)
Max Gear Module	Module 4 (approximate, tool dependent)
Machine Weight	19,000 kg (41,888 lb)
CNC Control	MAZATROL SmoothAi CNC
Manufacturer	Mazak
Model	DUAL TURN 20

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

Strengths & Limitations

Strengths

Integrated gear cutting capability eliminates the need for dedicated hobbing or gear shaping machines, consolidating gear production into the multi-tasking workflow
SmoothGear Cutting cycles allow programming gears from basic gear data (module, number of teeth, helix angle) without specialized gear cutting CAM software
Power skiving achieves faster cycle times than traditional hobbing for internal and external gears, with the flexibility to cut spur, helical, worm gears, and splines
Complete done-in-one processing: turn, mill, drill, and cut gears on the same machine in the same setup, eliminating datum shifts between operations
30 kW main spindle and large 760 mm work envelope handle substantial gear blanks and shaft assemblies common in automotive, aerospace, and power transmission
All standard INTEGREX multi-tasking capabilities remain fully available — this is a complete multi-tasking machine that also cuts gears, not a dedicated gear cutter

Limitations

Gear cutting accuracy (typically DIN 7-8 for power skiving) does not match dedicated gear grinding or high-precision hobbing machines achieving DIN 4-5 quality
Premium of $40,000-$70,000 over the standard i-350H requires sufficient gear cutting volume to justify the AG-specific tooling and software investment
Gear cutting tool costs are significant — power skiving cutters range from $1,500-$5,000 each and have limited regrind life compared to standard cutting tools
Maximum practical gear module around 4 limits the AG to small-to-medium pitch gears; large-module gears still require dedicated gear cutting equipment
19,000 kg weight and 6.0 x 3.0 meter footprint make this a substantial machine requiring solid foundations and adequate overhead crane capacity

Best For

Automotive drivetrain manufacturers producing gear shafts, pinions, and transmission components where turning, milling, and gear cutting occur in a single setup Aerospace gearbox producers machining precision gears and splined shafts from hardened steel and titanium where consolidating operations reduces lead time and cost Power transmission and gearbox rebuild shops that need flexible gear cutting capability without investing in dedicated hobbing, shaping, and grinding machines Job shops that encounter occasional gear cutting requirements and want to offer the capability without dedicating floor space to single-purpose gear machines Defense and marine manufacturers producing gears, splined shafts, and coupling components where done-in-one processing ensures consistent quality across all features

Frequently Asked Questions

01 What gear quality can the INTEGREX i-350H AG achieve?

Power skiving on the i-350H AG typically achieves DIN 7-8 gear quality (AGMA 10-11) for production gears. With careful setup, some shops report DIN 6 on favorable geometries. This is sufficient for many industrial, automotive, and aerospace applications. For final gear quality of DIN 4-5, the AG is used for rough and semi-finish gear cutting followed by dedicated gear grinding as a finishing operation.

02 What types of gears can the i-350H AG cut?

The SmoothGear Cutting system supports external and internal spur gears, helical gears, worm gears, splines, and gear-like features. Power skiving is particularly effective for internal gears that are difficult to produce on traditional hobbing machines. The practical limit is approximately module 4, covering most small-to-medium pitch gearing. Bevel gears require different approaches and are generally not suited to this platform.

03 How does power skiving compare to traditional hobbing?

Power skiving is faster than hobbing for small-to-medium module gears, particularly internal gears. It uses a dedicated skiving cutter synchronized with the workpiece C-axis rotation to progressively generate the gear tooth profile. Cycle times for a typical 30-tooth module 2 gear run 2-4 minutes. The tradeoff is slightly lower accuracy versus high-end hobbing and higher tool cost per tooth. For most production applications, the speed advantage and setup elimination outweigh the accuracy difference.

04 Can the i-350H AG still function as a standard multi-tasking machine?

Absolutely. The AG is a full INTEGREX i-350H with gear cutting added — all standard turning, milling, drilling, and 5-axis contouring capabilities are fully available. When not cutting gears, it operates identically to a standard i-350H. This makes it ideal for shops that need multi-tasking capability with occasional gear cutting rather than a dedicated gear machine that sits idle between gear jobs.

05 What does a Mazak INTEGREX i-350H AG cost?

New i-350H AG machines start around $520,000 for base configurations. Fully optioned setups with expanded tool magazine, high-speed milling spindle, and full gear cutting tool package run $650,000-$750,000. Used AG variants are scarce on the secondary market due to the specialized nature of the configuration. When available, expect $280,000-$450,000 for machines from 2016-2021.