Mazak INTEGREX i-350S

Discontinued Updated 2026-08-10

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-350S is a large-frame multi-tasking machine with a programmable sub-spindle, positioned between the mid-size i-250H and the heavy-duty i-400/i-500 models in Mazak's INTEGREX lineup. The i-350S delivers the work envelope and spindle power needed for large-diameter shaft work, flanges, and complex structural components while maintaining the precision and multi-axis capability that define the INTEGREX platform.

The main turning spindle provides 30 kW (40 hp) at 3,600 RPM through a 12-inch chuck with 102 mm (4.02 in) bar capacity, supporting aggressive roughing on large-diameter bar stock and chucked parts in steel, stainless, and titanium. The sub-spindle delivers 22 kW (30 hp) at 3,600 RPM with a 10-inch chuck for back-working and part transfer operations. The milling spindle runs at 12,000 RPM with 22 kW (30 hp) through Capto C6 tooling, with a 20,000 RPM high-speed option available.

The B-axis provides 240 degrees of travel (-30 to +210 degrees) with 0.0001-degree indexing resolution. Y-axis travel of 260 mm (10.24 in) accommodates larger off-center features. Axis travels span 730 mm (28.7 in) on X and 1,524 mm (60 in) on Z, yielding a maximum machining diameter of 760 mm (29.9 in) and maximum machining length of 1,524 mm. The sub-spindle W-axis provides programmable travel for part transfer. Rapids reach 36 m/min on X and Z axes.

The standard 40-tool ATC expands to 80 or 120 positions. The machine ships with MAZATROL SmoothAi CNC and weighs approximately 18,500 kg (40,785 lb) with a footprint of roughly 6.0 x 3.0 meters. Competitors include the DMG Mori NTX 2500, Okuma MULTUS U4000, and Doosan Puma SMX 3100ST. New machines price between $480,000 and $680,000, with used units from 2015-2021 trading between $220,000 and $450,000.

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)
Travel W	sub-spindle programmable
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)
Sub Spindle Speed	3,600 RPM
Sub 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 (sub)
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)
Machine Weight	18,500 kg (40,785 lb)
CNC Control	MAZATROL SmoothAi CNC

Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.

Strengths & Limitations

Strengths

Large 760 mm max machining diameter and 102 mm bar capacity handle substantial shaft work, flanges, and chucked parts that mid-size multi-tasking machines cannot accommodate
30 kW main spindle and 22 kW sub-spindle provide serious power for aggressive roughing on both ends in steel, stainless, Inconel, and titanium
1,524 mm Z-axis travel supports long shaft work common in oil and gas, aerospace landing gear, and heavy equipment applications
Sub-spindle with automatic part transfer enables true done-in-one processing, eliminating secondary operations and the tolerance stack-up of multiple setups
22 kW Capto C6 milling spindle delivers genuine machining center performance for heavy milling operations within the multi-tasking cycle
260 mm Y-axis travel accommodates larger off-center features than smaller INTEGREX models, expanding the range of parts that can be completed in one setup

Limitations

18,500 kg weight and 6.0 x 3.0 meter footprint require serious floor space, foundation work, and overhead crane capacity for installation and maintenance
Starting price near $480K and fully optioned configurations pushing $680K represent major capital investment requiring high-value, high-mix production to justify
Slower main spindle speed of 3,600 RPM compared to smaller INTEGREX models means reduced surface speed on small-diameter aluminum work
Programming complexity for large multi-tasking parts with dual spindles and B-axis requires advanced CAM software and highly experienced programmers
Consumable costs including Capto C6 tooling, large-diameter chuck jaws, and coolant volume are significantly higher than smaller multi-tasking platforms

Best For

Aerospace manufacturers machining large turbine shafts, landing gear components, and structural housings requiring turning, milling, and drilling in a single setup Oil and gas producers machining downhole tools, mud motor housings, and large valve bodies from Inconel and duplex stainless up to 760 mm diameter Power generation shops producing turbine rotors, generator shafts, and compressor components with complex features on both ends Heavy equipment manufacturers machining large hydraulic cylinder components, spindle housings, and drivetrain parts from alloy steel Defense contractors producing large-caliber ordnance components, missile body sections, and precision guidance housings requiring tight tolerances across long parts

Frequently Asked Questions

01 What does a Mazak INTEGREX i-350S cost?

The i-350S is discontinued, so it is a used-market purchase priced on hours, condition and specification rather than a list. The specification variables that matter most are the milling spindle option (12,000 or 20,000 RPM), magazine size (40, 80 or 120 tools), chuck sizes, bar feed and part handling, and the control generation fitted. With a main spindle, a sub spindle and a milling spindle to inspect, a pre-purchase spindle and B-axis check is worth paying for, and rigging an 18,500 kg machine plus Capto C6 tooling is a separate cost from the machine itself.

02 How does the i-350S compare to the INTEGREX i-400S?

The i-400S is the next step up with an even larger work envelope, heavier spindle, and greater rigidity for the most demanding large-part applications. The i-350S occupies a sweet spot for shops that have outgrown the i-250H but do not need the full capability of the i-400S. The i-400S carries a clear premium over a comparably configured i-350S, though with both models discontinued the gap on the used market depends heavily on hours and installed options.

03 Can the i-350S handle Inconel and titanium effectively?

Yes. The 30 kW main spindle and rigid large-frame construction provide the torque and stability needed for superalloy machining. High-pressure through-spindle coolant (70-100 bar) is recommended for Inconel. The SmoothAi control includes adaptive feed control that automatically adjusts cutting parameters based on spindle load, which is particularly valuable when machining variable-hardness aerospace alloys.

04 What automation options are available for the i-350S?

Options include magazine bar feeders for stock up to 102 mm diameter, gantry loaders for chucked parts, and robotic cell integration through Mazak's PALLETECH or third-party automation. The SmoothAi control supports Mazak's SMOOTH Monitor for remote machine status monitoring. For lights-out production, add a part catcher, chip conveyor, and tool life management.