Mazak INTEGREX i-250H S

$400,000 - $580,000 Updated 2026-03-16

Key Specifications

X Travel

615 mm (24.2 in)

Y Travel

230 mm (9.06 in)

Z Travel

1,100 mm (43.3 in)

Tool Capacity

36 tools (72 or 110 optional)

max machining diameter

660 mm (26 in)

max machining length

1,100 mm (43.3 in)

Overview

The Mazak INTEGREX i-250H S adds a programmable sub-spindle to the i-250H platform, enabling full done-in-one processing with automatic part transfer between spindles. Where the base i-250H has a second turning spindle, the S variant specifically configures it as a true sub-spindle optimized for part handoff, back-working, and simultaneous operations that maximize spindle utilization.

The main spindle delivers 26 kW (35 hp) at 4,000 RPM through a 10-inch chuck with 80 mm (3.15 in) bar capacity. The sub-spindle provides 18.5 kW (25 hp) at 4,000 RPM with a smaller 8-inch chuck, designed for finishing operations and back-end feature completion after part transfer. The milling spindle runs at 12,000 RPM with 18.5 kW (25 hp) through Capto C6 tooling, with 20,000 RPM available as an option.

Axis travels cover 615 mm (24.2 in) on X, 1,100 mm (43.3 in) on Z, and 230 mm (9.06 in) on Y. The sub-spindle W-axis provides programmable travel for part transfer positioning and back-working operations. The B-axis swings 240 degrees with 0.0001-degree resolution on a roller cam drive. Maximum machining diameter is 660 mm (26 in) with 1,100 mm maximum machining length. The standard 36-tool ATC expands to 72 or 110 positions.

Shipped with the MAZATROL SmoothAi CNC, the i-250H S weighs approximately 14,000 kg (30,865 lb) and requires roughly 5.2 x 2.6 meters of floor space. Competitors include the DMG Mori NTX 2000, Okuma MULTUS B300II, and Doosan Puma SMX 3100S. New machines price between $400,000 and $580,000, with used units trading between $180,000 and $370,000.

Full Specifications

Parameter	Value
Max Machining Diameter	660 mm (26 in)
Max Machining Length	1,100 mm (43.3 in)
X-Axis Travel	615 mm (24.2 in)
Y-Axis Travel	230 mm (9.06 in)
Z-Axis Travel	1,100 mm (43.3 in)
Travel W	sub-spindle programmable
B Axis Range	240° (-30° to +210°)
C Axis Rotation	360° continuous (both spindles)
Main Spindle Speed	4,000 RPM
Main Spindle Power	26 kW (35 hp)
Sub Spindle Speed	4,000 RPM
Sub Spindle Power	18.5 kW (25 hp)
Milling Spindle Speed	12,000 RPM (20,000 RPM optional)
Milling Spindle Power	18.5 kW (25 hp)
Milling Spindle Taper	Capto C6
Chuck Size	10 in (main) / 8 in (sub)
Bar Capacity	80 mm (3.15 in)
Tool Capacity	36 tools (72 or 110 optional)
Rapid Traverse Xz	38 m/min (1,496 ipm)
Rapid Traverse Y	30 m/min (1,181 ipm)
Machine Weight	14,000 kg (30,865 lb)
CNC Control	MAZATROL SmoothAi CNC

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

Strengths & Limitations

Strengths

Sub-spindle with automatic part transfer eliminates manual refixturing, enabling true done-in-one complete part processing from bar stock to finished component
26 kW main spindle with 80 mm bar capacity handles medium-diameter shaft work in steel, stainless, and titanium without sacrificing cutting performance
12,000 RPM Capto C6 milling spindle delivers real machining center capability for complex milling, drilling, and tapping within the multi-tasking cycle
Simultaneous main and sub-spindle operations significantly reduce cycle times by performing back-end machining while the main spindle starts the next part
240-degree B-axis with roller cam drive provides zero-backlash 5-axis contouring for complex aerospace and medical geometries
SmoothAi control with Ai Thermal Shield maintains dimensional accuracy during long unattended runs by actively compensating for thermal growth

Limitations

Price premium of $20,000-$40,000 over the base i-250H requires sufficient production volume of dual-end parts to justify the sub-spindle investment
14,000 kg machine weight and 5.2 x 2.6 meter footprint demand solid foundations and adequate crane capacity for installation
Programming simultaneous main/sub-spindle operations with B-axis milling requires advanced CAM software and experienced multi-tasking programmers
Sub-spindle power at 18.5 kW may limit heavy roughing during back-working operations on tough materials like Inconel 718
Longer cycle times for part transfer and sub-spindle operations may not benefit shops primarily running simple single-end turning jobs

Best For

Aerospace manufacturers producing turbine shafts, fasteners, and structural fittings requiring complete machining of both ends without removing the part from the machine Medical device companies machining implants, bone screws, and instrument shafts from titanium where done-in-one processing minimizes contamination and handling Oil and gas shops producing downhole tools, couplings, and valve components from Inconel and duplex stainless that require features on both ends Automotive tier-1 suppliers running medium-volume production of drivetrain shafts and gear blanks requiring turning, milling, and back-end features Job shops looking to consolidate multiple setups across turning centers and machining centers into a single multi-tasking platform for complex parts

Frequently Asked Questions

01 What is the price difference between the i-250H and i-250H S?

The S variant with the programmable sub-spindle typically adds $20,000-$40,000 over the base i-250H configuration. A fully optioned i-250H S with high-speed milling spindle, expanded tool magazine, and bar feeder interface runs $480,000-$580,000 new. The sub-spindle investment pays for itself quickly on parts requiring back-end features, since it eliminates a second operation and second machine entirely.

02 Can the i-250H S perform simultaneous cutting on both spindles?

Yes. The SmoothAi control supports synchronized simultaneous operations where the sub-spindle performs back-working while the main spindle starts the next part or performs milling operations. This overlapped processing can reduce cycle times by 20-40% on parts with significant back-end work. It requires careful programming to manage tool paths and avoid interference.

03 What bar feeder works with the INTEGREX i-250H S?

Mazak offers integrated bar feeder interfaces for major brands including LNS, IEMCA, and FMB. For the 80 mm bar capacity, a hydrodynamic bar feeder like the LNS Alpha 80 or IEMCA Boss 542 is typical. Magazine-style bar feeders allow extended lights-out operation. The bar feeder selection depends on bar diameter range, material, and desired magazine capacity.

04 How does the i-250H S compare to the Okuma MULTUS B300II?

Both are mid-size multi-tasking machines with sub-spindles. The i-250H S offers slightly larger bar capacity and the SmoothAi control with thermal compensation. The MULTUS B300II features Okuma's Thermo-Friendly Concept and OSP-P300SA control. The Okuma tends to hold thermal stability exceptionally well over long runs. Pricing is comparable, and both have strong North American service networks.