Okuma MILLAC 852V II

$280,000 - $370,000 Updated 2026-03-13

Key Specifications

X Travel

2,050 mm (80.7 in)

Y Travel

850 mm (33.5 in)

Z Travel

700 mm (27.6 in)

Max Spindle

min⁻¹

Spindle Taper

No. 50 (BT 50)

Tool Capacity

36 (standard); 54 optional

Overview

The Okuma MILLAC 852V II is a large-envelope, heavy-duty vertical machining center that bridges the gap between standard VMCs and full double-column machines. With 2,050 x 850 x 700 mm (80.7 x 33.5 x 27.6 in) of travel, it handles oversized mold bases and die plates that exceed the capacity of most vertical machining centers.

The spindle delivers 4,000 RPM standard with 18.5/15 kW (25/20 hp) through a No. 50 (BT 50) taper. Options extend to 6,000, 10,000, and 12,000 RPM with an optional 22/18.5 kW (30/25 hp) motor. At this machine size, the BT 50 taper is essential for the large-diameter tools used in roughing operations on extensive mold surfaces.

The 2,200 x 850 mm (86.6 x 33.5 in) table with 2,000 kg (4,409 lb) load capacity handles large automotive mold bases and transfer die sections. The 36-tool ATC (expandable to 54) keeps complex programs running without manual tool intervention. Heavy-duty box-way construction on all axes provides the vibration damping needed when finishing passes span over 2 meters of travel.

The 700 mm (27.6 in) Z-travel provides excellent depth for deep cavity work in large molds. The thermally symmetrical headstock design becomes increasingly important at this size, where thermal growth over 2+ meters of X-travel can cause significant dimensional errors without compensation.

Okuma's Thermo-Friendly Concept works continuously to manage thermal deformation across the large machine structure. The OSP-P300A control with advanced look-ahead contouring ensures smooth surface generation even on complex 3D surfaces spanning the full work envelope.

New MILLAC 852V II machines run $280,000-$370,000. At this size, the machine competes with double-column alternatives. Competitors include the Mazak VTC-800/30SRW, Doosan BM 2740, and Okuma's own MCR series double-column machines.

Full Specifications

Parameter	Value
X-Axis Travel	2,050 mm (80.7 in)
Y-Axis Travel	850 mm (33.5 in)
Z-Axis Travel	700 mm (27.6 in)
Max Spindle Speed	min⁻¹
Spindle Taper	No. 50 (BT 50)
Spindle Motor Power	18.5/15 [26/18.5]
Tool Capacity	36 (standard); 54 optional
Table Size	mm
Max Table Load	2,000 kg (4,409 lb)
Rapid Traverse Rate	16 / 16 / 16 [12 / 12 / 16]
Positioning Accuracy	±0.006 mm
Repeatability	±0.003 mm
Machine Weight	18,000 kg (39,683 lb)
CNC Control	OSP-P300A
Guide Type	Box ways (heavy-duty, all axes)
Travel X Y Z	2,050 x 850 x 750 [3,050 x 850 x 750]
Max Load	2,500 [3,800]
Okuma Global Repair Center	Charlotte, North Carolina
Inches	Metric
Table Dimensions	2,200 x 850 [3,200 x 850]
Spindle Speed	20~4,000 [30~6,000, 50~12,000, 50~15,000]

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

Strengths & Limitations

Strengths

2,050 mm X-travel handles oversized mold bases and die plates that most VMCs cannot accommodate
2,000 kg table load supports large automotive-scale mold bases without overloading concerns
Heavy-duty box-way construction provides vibration damping essential for finishing over 2+ meter spans
700 mm Z-travel accesses deep cavities in large mold bases and tall die features
Thermally symmetrical headstock minimizes drift during multi-hour machining on large surfaces
18,000 kg machine mass provides exceptional vibration isolation for heavy cutting operations
BT 50 taper supports large face mills and heavy roughing operations on extensive surfaces

Limitations

Starting at $280K, the investment approaches double-column machine territory
Standard 4,000 RPM spindle requires upgrade for anything beyond heavy roughing
18,000 kg weight requires major foundation work and heavy crane access for installation
Rapids at 20 m/min are slow, adding significant non-cutting time on large parts
C-frame construction at this size provides less rigidity than a true double-column design

Best For

Automotive mold shops producing large bumper, dashboard, and body panel injection mold bases Large stamping die manufacturers machining transfer and progressive die sections Shops needing large VMC capability without the full cost and footprint of double-column machines Aerospace manufacturers machining large structural skins and panel components Heavy industry shops producing large turbine, generator, and compressor housing components

Frequently Asked Questions

01 What does an Okuma MILLAC 852V II cost new?

New MILLAC 852V II machines run $280,000-$370,000 depending on spindle and magazine configuration. The 10K or 12K RPM spindle and 54-tool magazine add to the base price. Used units from 2010-2016 sell for $150,000-$220,000.

02 Should I buy a MILLAC 852V II or a double-column machine?

The MILLAC 852V II costs less than most double-column machines of similar travel (which start at $400K+) and has a smaller footprint. However, a double-column design provides more rigidity, especially for heavy cuts near the Y-axis extremes. If your work is primarily finishing on large mold surfaces, the MILLAC may suffice. For heavy roughing on very large workpieces, double-column is superior.

03 What spindle speed is recommended for large mold work?

The 10,000 RPM option is the most popular for large mold finishing. It balances speed for semi-finishing and finishing in P20 and H13 steel with adequate torque for roughing. The standard 4K RPM option is only practical for heavy roughing with large face mills.

04 What foundation does the MILLAC 852V II require?

At 18,000 kg, plan for a minimum 350 mm (14 in) reinforced concrete slab with proper sub-grade preparation. An isolated foundation is recommended. Floor space needs approximately 6.5 x 5.0 meters including service clearance. Consult with Okuma's installation team for site-specific requirements.