Yamazaki Mazak Mill-Turn / Multi-Tasking Machines

Mazak INTEGREX i-400ST

Discontinued Updated 2026-10-02

Key Specifications

max turning diameter

658 mm (25.9 in)

max part length

1,519 mm (59.8 in)

main spindle speed

3,300 RPM

main spindle power

30 kW (40 hp)

sub spindle speed

4,000 RPM

sub spindle power

15 kW (20 hp)

How much does the Mazak INTEGREX i-400ST cost?

Price estimate

Uncertain

We do not have a price for the Mazak INTEGREX i-400ST that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.

Overview

The Mazak INTEGREX i-400ST is a multi-tasking machine whose listed table counts 9 axes with its lower turret and sub spindle. Maximum turning diameter is listed at 658 mm (25.9 in) and maximum part length at 1,519 mm (59.8 in). Mazak no longer lists this model, so treat what follows as the listed figures for an existing machine and confirm them on the machine itself.

Three cutting stations share the work. The upper one is a Capto C6 milling spindle listed at 12,000 rpm and 22 kW (30 hp), with 20,000 rpm optional. Its B axis covers 240° (-30° to +210°) with a resolution of 0.0001°, and it has 250 mm (9.84 in) of Y travel for off-centre features. A lower turret gives a second tool that can cut while the milling head is busy, which is what makes pinch turning of a long shaft or separate work at each spindle possible. The table gives no station count or tool size for that turret.

The main spindle is listed at 3,300 rpm and 30 kW (40 hp), with a 10 in chuck on an A2-8 nose and 102 mm (4.0 in) of bar capacity. The sub spindle is the lighter of the two: 4,000 rpm, 15 kW (20 hp) and a 6 in chuck, so second-end cuts are bounded by its motor and its grip. No duty rating is given with the power figures. The magazine for the milling spindle holds 36 tools, with 72 or 110 optional. Rapid traverse on X and Z is 50 m/min (1,969 ipm), and the listed weight is 19,000 kg (41,888 lb).

Full Specifications

Parameter	Value
Max Turning Diameter	658 mm (25.9 in)
Max Part Length	1,519 mm (59.8 in)
Main Spindle Speed	3,300 RPM
Main Spindle Power	30 kW (40 hp)
Sub Spindle Speed	4,000 RPM
Sub Spindle Power	15 kW (20 hp)
Milling Spindle Speed	12,000 RPM (20,000 RPM optional)
Milling Spindle Power	22 kW (30 hp)
Milling Spindle Taper	Capto C6
B Axis Range	240° (-30° to +210°)
B Axis Resolution	0.0001°
Y Axis Travel	250 mm (9.84 in)
Number of Axes	9 (with lower turret and sub-spindle)
Bar Capacity	102 mm (4.0 in)
Chuck Size Main	10 in (A2-8)
Chuck Size Sub	6 in
ATC Tool Capacity	36 tools (72 or 110 optional)
Rapid Traverse Xz	50 m/min (1,969 ipm)
Machine Weight	19,000 kg (41,888 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

9 axes as listed, counting the lower turret and the sub spindle, so two tools can be in the cut at once
Capto C6 milling spindle listed at 12,000 rpm and 22 kW (30 hp), with 20,000 rpm optional
B axis covers 240° (-30° to +210°) with a listed resolution of 0.0001°
Main spindle listed at 30 kW (40 hp) with 102 mm (4.0 in) bar capacity and a 10 in chuck
Milling-spindle magazine of 36 tools, with 72 or 110 tools optional

Limitations

The sub spindle is listed at 15 kW (20 hp) with a 6 in chuck, half the 30 kW (40 hp) of the main spindle
The table gives no station count, tool size or drive figures for the lower turret
Y travel is 250 mm (9.84 in), which limits how far off centre the milling spindle can reach
A discontinued model with optional magazines and milling speeds, so each machine has to be checked for what was fitted
At 19,000 kg (41,888 lb) it needs a floor and rigging plan to suit

Best For

Shafts up to 1,519 mm (59.8 in) long where upper and lower tools cut together Bar work up to 102 mm (4.0 in) finished on the sub spindle Parts with angled features inside the 240° B-axis range Production parts where two tools in the cut shorten the cycle

Frequently Asked Questions

01 What does the lower turret add on the INTEGREX i-400ST?

The table counts 9 axes with the lower turret and sub spindle fitted. A lower turret is a second tool carrier under the spindle line, so a turning tool can cut while the B-axis milling spindle works on the same part or on the part in the other spindle. The table does not give the number of stations or the tool size for it, so ask for those on the specific machine.

02 How do the main and sub spindles compare?

The main spindle is listed at 3,300 rpm and 30 kW (40 hp) with a 10 in chuck on an A2-8 nose. The sub spindle is listed at 4,000 rpm and 15 kW (20 hp) with a 6 in chuck. The sub spindle is therefore faster but has half the listed power and a smaller chuck. No duty rating is given for either figure.

03 What are the milling spindle figures?

A Capto C6 spindle listed at 12,000 rpm and 22 kW (30 hp), with a 20,000 rpm spindle as an option. The B axis covers 240° (-30° to +210°) at a resolution of 0.0001°, Y travel is 250 mm (9.84 in), and the magazine holds 36 tools with 72 or 110 optional.

04 Does Mazak still list the INTEGREX i-400ST?

No, Mazak no longer lists it. The figures on this page are the listed ones: 658 mm (25.9 in) maximum turning diameter, 1,519 mm (59.8 in) maximum part length and 19,000 kg (41,888 lb). Check them, and the options fitted, against the documents of the individual machine.