Okuma MILLAC 44V II

$120,000 - $155,000 Updated 2026-03-13

Key Specifications

X Travel

762 mm (30.0 in)

Y Travel

460 mm (18.1 in)

Z Travel

460 mm (18.1 in)

Max Spindle

min⁻¹

Spindle Taper

BT 40

Tool Capacity

32 (standard); 48 optional

Overview

The Okuma MILLAC 44V II is the compact entry point in Okuma's MILLAC V II series of heavy-duty vertical machining centers, built for mold and die applications where rigidity and surface finish quality are paramount. With 762 x 460 x 460 mm (30.0 x 18.1 x 18.1 in) of travel, it occupies the same compact footprint as the GENOS M460-VE but with a fundamentally different construction philosophy focused on heavy cutting.

The standard spindle delivers 8,000 RPM with 11/7.5 kW (15/10 hp) through a BT 40 taper. High-speed options extend to 15,000 and 20,000 RPM with an optional 22/18.5 kW (30/25 hp) motor. The MILLAC series uses a thermally symmetrical headstock design with the spindle centered in the column, minimizing thermal drift during extended cutting operations.

The MILLAC 44V II uses heavy-duty box-way construction optimized for mold and die work. The ways are wider and more heavily loaded than typical VMC box ways, providing exceptional rigidity during deep cavity machining where tool extensions create significant bending moments. This construction makes the MILLAC series Okuma's choice for demanding mold work where the MB series is the general-purpose option.

The 900 x 460 mm (35.4 x 18.1 in) table with 32-tool ATC (expandable to 48 tools) handles typical mold components. Okuma's Thermo-Friendly Concept and Collision Avoidance System are standard. The OSP-P300A control supports high-speed, high-precision contouring with look-ahead processing for smooth surface finish on complex 3D surfaces.

New MILLAC 44V II machines run $120,000-$155,000. The MILLAC premium over the MB series reflects the enhanced construction for mold and die work. Competitors include the Makino S33, Roku Roku HC-658, and YCM FV-102A.

Full Specifications

Parameter	Value
X-Axis Travel	762 mm (30.0 in)
Y-Axis Travel	460 mm (18.1 in)
Z-Axis Travel	460 mm (18.1 in)
Max Spindle Speed	min⁻¹
Spindle Taper	BT 40
Spindle Motor Power	15/11
Tool Capacity	32 (standard); 48 optional
Table Size	mm
Max Table Load	600 kg (1,323 lb)
Rapid Traverse Rate	50 [30]
Positioning Accuracy	±0.003 mm
Repeatability	±0.002 mm
Machine Weight	5,500 kg (12,125 lb)
CNC Control	OSP-P300A
Guide Type	Box ways (heavy-duty, all axes)
Travel X Y Z	560 x 410 x 410
Max Load	200
Okuma Global Repair Center	Charlotte, North Carolina
Inches	Metric
Table Dimensions	630 x 400
Spindle Speed	120~12,000 [20,000]

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

Strengths & Limitations

Strengths

Heavy-duty box-way construction specifically optimized for mold and die rigidity requirements
Thermally symmetrical headstock design minimizes thermal drift during extended finishing operations
High-precision contouring with look-ahead processing produces smooth surfaces on complex 3D geometry
Thermo-Friendly Concept maintains tight tolerances across temperature changes in the shop environment
Collision Avoidance System prevents crashes during complex mold cavity programming and setup
Compact footprint delivers mold-grade rigidity without requiring large floor space
5,500 kg machine weight provides mass-based vibration isolation in a compact package

Limitations

Starting at $120K, the MILLAC commands a premium over the MB series for similar travel specs
Standard 8K RPM spindle limits high-speed aluminum and graphite work without upgrades
Compact 460 mm Y and Z travel restricts larger mold work; consider the MILLAC 561V II for bigger molds
Box-way rapids are slower than roller-guide competitors, extending cycle times on multi-feature parts
Smaller dealer and user community compared to mainstream VMCs from Haas or Mazak

Best For

Mold shops producing injection mold cavities and cores requiring exceptional surface finish Die makers machining precision stamping dies in hardened tool steel Shops specializing in small-to-medium molds that need compact high-rigidity machines Electrode machining operations with 15K or 20K RPM spindle for graphite finishing Precision manufacturing requiring sub-micron repeatability in a compact VMC format

Frequently Asked Questions

01 What does an Okuma MILLAC 44V II cost new?

New MILLAC 44V II machines run $120,000-$155,000. High-speed spindles and expanded tool magazines add to the base price. Used MILLAC 44V II machines from 2014-2019 sell for $65,000-$90,000.

02 How does the MILLAC 44V II differ from the MB-46V II?

Both use box-way construction, but the MILLAC is specifically optimized for mold and die work with a thermally symmetrical headstock, wider way surfaces, and enhanced contouring algorithms. The MB is a more general-purpose box-way VMC. The MILLAC costs $10-15K more but provides better surface finish on complex 3D cavity work.

03 Is the MILLAC 44V II suitable for hard milling?

Yes, hard milling up to 60+ HRC is one of its primary applications. The heavy box-way construction keeps vibration low during hard milling, extending CBN and ceramic insert life. The 8K RPM standard spindle works well for hard milling; the 15K option is better for finishing passes at higher surface speeds.

04 What surface finish can the MILLAC 44V II achieve?

With appropriate tooling and cutting parameters, the MILLAC 44V II routinely achieves Ra 0.2-0.4 micrometers on hardened steel. The look-ahead contouring and thermal stability contribute to consistent finish across large surfaces. For mirror-quality finishes below Ra 0.1, additional polishing is still required.