Mazak INTEGREX e-420H-S

$500,000 - $750,000 Updated 2026-03-19

Key Specifications

X Travel

845 mm (33.27 in)

Y Travel

420 mm (16.54 in)

Z Travel

1,388 mm (54.65 in)

Tool Capacity

40 tools (80 or 120 optional)

Max Turn Length

1,524 mm (60 in) standard

max turning diameter

670 mm (26.4 in)

Overview

The Mazak INTEGREX e-420H-S is the dual-spindle variant of the e-420H horizontal multi-tasking machine, adding a second turning spindle where the tailstock would normally sit. This enables complete done-in-one processing: rough and finish the front side on the main spindle, transfer the part to the sub-spindle, then machine the back side without removing the workpiece from the machine.

The main spindle runs a 10-inch chuck with 670 mm (26.4 in) max turning diameter, driven by a 30/40 hp integral motor at up to 4,000 RPM. The sub-spindle provides equivalent chucking power for back-work operations. The milling spindle runs to 12,000 RPM with 22 kW (29.3 hp) through No. 40, CAPTO C6, or HSK-T63 tooling, delivering true machining center capability.

The B-axis swings 240 degrees (-30 to +210) with roller cam drive and 0.0001-degree indexing resolution. Y-axis travel of 420 mm (16.54 in) is the largest in this class. Combined with 360-degree continuous C-axis on both spindles, you can reach virtually any angle on the workpiece during both first-op and second-op processing.

Axis travels include 845 mm (33.27 in) on X, 420 mm (16.54 in) on Y, and 1,388 mm (54.65 in) on Z. The standard 40-tool ATC handles most jobs with 80 and 120-tool options available. MAZATROL SmoothAi with Ai Thermal Shield runs the current generation. Machine weight approximately 22,000 kg (48,502 lb). New machines $500,000-$750,000. The -ST variant adds a lower turret for simultaneous cutting operations.

Full Specifications

Parameter	Value
Max Turning Diameter	670 mm (26.4 in)
Max Turning Length	1,524 mm (60 in) standard
X-Axis Travel	845 mm (33.27 in)
Y-Axis Travel	420 mm (16.54 in)
Z-Axis Travel	1,388 mm (54.65 in)
B Axis Range	240° (-30° to +210°)
C Axis Rotation	360° continuous (both spindles)
Main Spindle Speed	4,000 RPM
Main Spindle Power	30/40 hp (22/30 kW) continuous/30-min
Sub Spindle	Yes, equivalent to main spindle
Milling Spindle Speed	12,000 RPM
Milling Spindle Power	22 kW (29.3 hp)
Milling Spindle Taper	No. 40 / CAPTO C6 / HSK-T63
Chuck Size	24" to 50"
Bar Capacity	77 mm (3.03 in)
Spindle Bore	91 mm (3.58 in)
Tool Capacity	40 tools (80 or 120 optional)
Rapid Traverse Xyz	50 m/min (1,969 ipm)
Machine Weight	22,000 kg (48,502 lb) approx.
CNC Control	MAZATROL SmoothAi CNC
Max Machining Diameter	Φ51.18″
Y Axis Travel	31.5″

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

Strengths & Limitations

Strengths

Second spindle enables complete done-in-one processing of both part ends without refixturing, eliminating setup-related tolerance stack-up
420 mm Y-axis travel is the largest in this class for off-center milling and drilling on both first-op and second-op sides
240-degree B-axis with 0.0001-degree resolution provides zero-backlash positioning for complex angular features
12,000 RPM milling spindle with 22 kW through No. 40/CAPTO C6/HSK-T63 delivers genuine machining center capability
Automatic part transfer between spindles enables unattended processing of complete parts
MAZATROL SmoothAi synchronization handles complex dual-spindle coordination programming

Limitations

Sub-spindle replaces tailstock, so long shaft work requiring tailstock support must use the base e-420H instead
$500K-$750K is $50K-$100K premium over base e-420H and requires consistent both-end work to justify
Part transfer programming adds significant complexity; expect extended prove-out time on new parts
22,000 kg machine weight requires engineered foundations and professional rigging

Best For

Aerospace shops machining shaft components needing turning, milling, and drilling on both ends in a single setup Oil and gas manufacturers running valve stems, connector bodies, and flanged shafts requiring back-side features Production environments where eliminating second-op setup on a separate machine reduces WIP and lead time Precision manufacturers where maintaining concentricity between front and back features is critical Job shops running high-value parts where done-in-one processing eliminates refixturing errors and inspection burden

Frequently Asked Questions

01 What does a new e-420H-S cost?

New e-420H-S machines start around $500,000. Production setups with 80-tool magazine and probing run $600K-$750K. The -ST variant with lower turret adds another $75K-$150K. Used units trade $175K-$400K depending on year and condition.

02 e-420H-S vs e-420H?

The -S replaces the tailstock with a second turning spindle for back-work. Choose -S when parts need machining on both ends. Keep the base e-420H for long shaft work requiring tailstock support.

03 e-420H-S vs e-420H-ST?

The -ST adds a lower turret in addition to the second spindle, enabling simultaneous cutting operations. The lower turret can rough while the milling spindle finishes, reducing cycle time on complex parts. Higher cost and programming complexity.

04 Part transfer reliability?

Reliable with proper setup. Load detection, gripper pressure, and transfer macros must be tuned per part. Forum users recommend thorough testing with soft jaws matched to part geometry. Budget extra prove-out time on first articles.