Used OKUMA MILLAC 800VH 5-Axis CNC Machine

Loading carousel...

Product Highlight

The OKUMA MILLAC 800VH is a large, high-rigidity 5-axis CNC machining center designed for complex multi-sided and heavy-duty machining. This used Japanese unit combines 1020 mm XYZ travels, an 800 mm rotary table, BT50 spindle, 120-tool capacity and full-axis scales, making it a strong option for manufacturers seeking large 5-axis capability without the investment required for a new machine.

Product Description

Used OKUMA MILLAC 800VH heavy-duty 5-axis CNC machining center from Japan, featuring 1020 × 1020 × 1020 mm XYZ travel, an 800 × 800 mm rotary table, BT50 spindle, 120-tool magazine and full-axis linear scales. With low reported operating hours and Renishaw ballbar inspection records, this machine is an attractive solution for buyers requiring rigid cutting, large work capacity and stable multi-axis precision.

Technical Specifications

Specification	Details
Brand	OKUMA
Model	MILLAC 800VH
Machine Condition	Used / Pre-Owned
Country of Origin	Japan
Machine Type	Heavy-Duty 5-Axis CNC Machining Center
Number of Axes	5 Axis
CNC Control	FANUC Series 31i-MODEL A5
X-Axis Travel	1,020 mm
Y-Axis Travel	1,020 mm
Z-Axis Travel	1,020 mm
Table Size	800 × 800 mm
Maximum Table Load	Approx. 1,000 kg
Spindle Taper	BT50
Spindle Speed	Up to 10,000 rpm
Spindle Motor	Approx. 22 / 18.5 kW
Spindle Swivel	Approx. 150°
Rotary Table	360°
5-Axis Indexing	Up to 0.001°
X/Y/Z Rapid Traverse	Approx. 30 m/min
Tool Magazine	120 Tools
Axis Feedback	Full-Axis Linear Scales
Machine Structure	High-Rigidity Heavy-Duty Slideway Construction
Reported Running Time	Approx. 5,189 Hours
Reported Machining Time	Approx. 4,987 Hours
Accuracy Inspection	Renishaw Ballbar Tested
Ballbar Test Planes	XY / ZX / YZ
Ballbar Test Radius	250 mm
Test Feed Rate	2,000 mm/min
Machine Weight	Approx. 22,000 kg

OKUMA's published specifications confirm the 800 × 800 mm table, 1,020 mm X/Y/Z travels, 1,000 kg maximum load, 10,000 rpm spindle and 22/18.5 kW spindle output. Manufacturer literature also lists a 120-tool magazine as an available MILLAC 800VH configuration.

For earlier FANUC-equipped configurations, manufacturer literature specifies FANUC 31i-A5, MAS403 BT50, simultaneous 5-axis control and 120-tool ATC availability, which closely matches this machine's configuration.

Accuracy & Condition Highlights

The supplied Renishaw ballbar inspection records cover all three primary planes:

XY plane circularity: approximately 5.9 μm
ZX plane circularity: approximately 9.2 μm
YZ plane circularity: approximately 12.7 μm
Test radius: 250 mm
Test feed: 2,000 mm/min

Applications & Suitable Industries

The used OKUMA MILLAC 800VH is particularly suitable for manufacturers that need large-capacity 5-axis machining combined with heavy cutting rigidity.

Typical applications include aerospace structural components, large precision housings, energy equipment parts, heavy machinery components, molds and dies, complex valve bodies, industrial equipment components and multi-sided precision parts.

Its 5-axis configuration allows multiple surfaces to be machined in fewer setups, helping reduce repositioning errors and improve process efficiency. The BT50 spindle and rigid machine structure are especially attractive for larger steel components and demanding machining operations, while the 800 × 800 mm table and 1,020 mm travel on all three linear axes provide substantial working capacity. OKUMA specifically highlights one-setup multi-sided machining, rigidity and aerospace applications for the MILLAC 800VH.

FAQ

Is the OKUMA MILLAC 800VH a simultaneous 5-axis machining center?

Yes. The MILLAC 800VH supports simultaneous 5-axis machining using three linear axes together with spindle swivel and rotary-table movement, allowing complex components to be machined with fewer setups.

What is the XYZ travel of this used OKUMA MILLAC 800VH?

The machine provides approximately 1,020 × 1,020 × 1,020 mm of X, Y and Z travel, giving it significantly more working capacity than many smaller 5-axis machining centers.

Does this OKUMA MILLAC 800VH use BT50 tooling?

Yes. This unit is configured with a BT50 spindle, making it suitable for larger tooling and demanding heavy-cutting applications. Manufacturer literature also lists MAS403 BT50 for this configuration.

How many tools can this used 5-axis CNC machine hold?

This machine is equipped with a 120-tool automatic tool magazine, which is especially useful for complex components requiring many milling, drilling, boring and finishing tools.

How can I check the machine accuracy before buying?

Renishaw ballbar inspection records are available for the XY, ZX and YZ planes. Buyers can use these results together with an operational test, machining trial and final acceptance inspection to evaluate the machine before shipment.