Okuma MILLAC 1052V II
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The Okuma MILLAC 1052V II is the flagship of Okuma's MILLAC V II series, a massive vertical machining center that delivers double-column-level capability in a C-frame configuration. With 2,550 x 1,050 x 800 mm (100.4 x 41.3 x 31.5 in) of travel, it machines the largest mold bases and die plates that would otherwise require a bridge-type or double-column machine.
The spindle delivers 4,000 RPM standard with 22/18.5 kW (30/25 hp) through a No. 50 (BT 50) taper. Options extend to 6,000, 10,000, and 12,000 RPM. At this scale, the spindle power and BT 50 taper are sized for large-diameter face mills that can cover ground quickly on mold bases measuring over 2 meters in length.
The 2,800 x 1,050 mm (110.2 x 41.3 in) table with 3,000 kg (6,614 lb) load capacity handles the largest automotive mold bases, including full bumper and instrument panel molds. The 36-tool ATC (expandable to 54) manages complex multi-tool programs across the extensive work envelope.
Heavy-duty box-way construction is essential at this scale. The MILLAC 1052V II weighs approximately 24,000 kg, providing the mass-based vibration isolation needed when cutting forces act across a 2.5+ meter workpiece. The thermally symmetrical headstock and Thermo-Friendly Concept work together to maintain accuracy across the large machine structure.
The 800 mm (31.5 in) Z-travel provides exceptional depth for deep cavity mold work, tall fixture setups, and parts with significant vertical features. Combined with over 1 meter of Y-travel, the MILLAC 1052V II can reach into deep mold cavities that would otherwise require a gantry-type machine.
New MILLAC 1052V II machines run $380,000-$500,000. At this level, the decision is between this machine and a true double-column MCR series. Competitors include the Mazak VTC-800/50SR, Doosan BM 3340, and Hyundai Wia KBN-135C.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 2,550 mm (100.4 in) |
| Y-Axis Travel | 1,050 mm (41.3 in) |
| Z-Axis Travel | 800 mm (31.5 in) |
| Max Spindle Speed | min⁻¹ |
| Spindle Taper | No. 50 (BT 50) |
| Spindle Motor Power | 22/18.5 [26/18.5] |
| Tool Capacity | 36 (standard); 54 optional |
| Table Size | mm |
| Max Table Load | 3,000 kg (6,614 lb) |
| Rapid Traverse Rate | 16 / 16 / 16 [12 / 12 / 16] |
| Positioning Accuracy | ±0.008 mm |
| Repeatability | ±0.004 mm |
| Machine Weight | 24,000 kg (52,911 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
- 2,550 x 1,050 x 800 mm travel handles the largest mold bases without needing a double-column machine
- 3,000 kg table load supports full automotive-scale mold bases including bumper and IP molds
- 800 mm Z-travel provides exceptional depth for deep cavity work on large mold components
- 24,000 kg machine mass provides massive vibration isolation for heavy cutting across large surfaces
- Heavy-duty box ways maintain surface finish quality across 2.5+ meter finishing passes
- Thermo-Friendly Concept manages thermal growth across the substantial machine structure
- C-frame design provides better operator access than double-column machines for setup and inspection
Limitations
- Starting at $380K, pricing overlaps with double-column machines that offer greater rigidity
- Standard 4,000 RPM spindle requires upgrade for most finishing applications
- 24,000 kg weight requires major foundation engineering and heavy lifting equipment for installation
- Rapids at 18 m/min add substantial non-cutting time on parts with distributed features
- C-frame deflection at maximum Y-travel is greater than equivalent double-column designs
Best For
Frequently Asked Questions
01
New MILLAC 1052V II machines run $380,000-$500,000. High-speed spindle options and the 54-tool magazine add cost. At this price range, it overlaps with entry-level double-column machines. Used units from 2008-2015 sell for $200,000-$300,000.
02
The MILLAC 1052V II provides better operator access due to its C-frame design, making setup and inspection easier. A double-column machine provides more rigidity, especially at maximum Y-axis extension. If your work involves heavy roughing near the Y extremes, go double-column. If your work is primarily finishing with occasional roughing, the MILLAC may be the better choice for accessibility.
03
At 24,000 kg, this machine requires engineered foundation design. Plan for minimum 400 mm (16 in) reinforced concrete with proper sub-grade preparation. An isolated foundation pad is essential. Floor space needs approximately 8.0 x 5.5 meters including service access. Professional foundation engineering is strongly recommended.
04
The 10,000 RPM option is recommended for most large mold finishing work. It provides adequate surface speed for semi-finishing and finishing in P20 and H13 steel while retaining torque for roughing. The standard 4K RPM is only suitable for heavy roughing with large face mills.
Videos
Group Engineering Product
PrestigeEquipment
Power Repair Service, Inc.
JS PRECISION CO
PRIDEMACHINERY
Community Discussions
Community discussion — How to set Z-height for tool change (old Okuma & Howa/Fanuc)
Community discussion — Okuma sub programs
Options and configuration advice — Howa Okuma Millac 4H startup - 'Not Ready ...
Owner experience and review — Okuma Mill Program - Practical Machinist
Troubleshooting and problem-solving — Thread: Old G & L 25VS - cnczone.com
Community discussion — Need Help- rotary post for osp300 control - cnczone.com
Community discussion — Okuma - Page 2 - cnczone.com
Troubleshooting and problem-solving — okuma ATC - stuck - CNCzone
Links to community discussions. Summaries are editorial — visit the original thread for full context.




