USED OKUMA MILLAC 761VII – 2017

The OKUMA MILLAC 761VII – 2017 is a heavy-duty CNC vertical machining center designed for high-productivity machining of large and complex workpieces. The MILLAC 761VII belongs to Okuma’s MILLAC V series and is built for applications requiring substantial work envelope, high spindle power, rigid construction, and dependable long-cycle production performance.

The machine provides approximately 60 inches of X-axis travel, 30 inches of Y-axis travel, and 28 inches of Z-axis travel, making it suitable for large components that exceed the capacity of conventional vertical machining centers. Its large worktable provides substantial fixture and workholding capacity, while the rigid spindle and column structure are designed to support heavy material removal.

Typical MILLAC 761VII configurations use a 50-taper spindle, with spindle speeds and motor power dependent on the exact configuration. The machine is commonly equipped with an Okuma OSP-P300M CNC control, automatic tool changer, flood coolant, and a chip-management system.

A 2017 MILLAC 761VII is particularly attractive to manufacturers working with large aerospace, energy, heavy-equipment, mold, die, and industrial machinery components.

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OKUMA MILLAC 761VII – 2017 – AXIS

Specification	Details
Machine Type	CNC Vertical Machining Center
Axis Configuration	3-Axis
X-Axis Travel	Approx. 60″ / 1,524 mm
Y-Axis Travel	Approx. 30″ / 762 mm
Z-Axis Travel	Approx. 28″ / 711 mm
4th-Axis Capability	Available
5th-Axis Capability	Available
Linear Interpolation	Standard
Circular Interpolation	Standard
Rigid Tapping	Available

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OKUMA MILLAC 761VII – 2017 – AXIS TRAVELS / WORK ENVELOPE

Specification	Details
X-Axis Travel	Approx. 60″ / 1,524 mm
Y-Axis Travel	Approx. 30″ / 762 mm
Z-Axis Travel	Approx. 28″ / 711 mm
Spindle Nose to Table	Configuration Dependent
Work Envelope	Large Format
Long-Part Machining	Supported
Multiple Fixtures	Supported
4th-Axis Integration	Available
5th-Axis Integration	Available

The approximately 60-inch X-axis travel gives the MILLAC 761VII a large machining envelope for long and wide components.

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OKUMA MILLAC 761VII – 2017 – CAPACITY / TABLE

Specification	Details
Table Type	Fixed T-Slot
Table Size	Large Format
Workholding	Vises / Fixtures / Rotary Tables
Maximum Workpiece Weight	Configuration Dependent
Multiple Vises	Supported
Large Fixtures	Supported
4th-Axis Integration	Available
5th-Axis Integration	Available
Heavy Workpieces	Supported
Production Fixtures	Supported

The large table is designed to accommodate substantial workpieces and multiple fixtures for production machining.

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OKUMA MILLAC 761VII – 2017 – SPINDLE

Specification	Details
Spindle Type	Heavy-Duty CNC Spindle
Spindle Taper	CAT 50 / 50 Taper
Maximum Spindle Speed	Configuration Dependent
Spindle Motor	Configuration Dependent
Spindle Power	High-Power Configuration
Spindle Orientation	Standard
Rigid Tapping	Available
Through-Spindle Coolant	Available
High-Torque Spindle	Available
Spindle Cooling	Standard

The 50-taper spindle provides the rigidity needed for aggressive roughing and heavy cutting. Exact spindle speed and motor specifications should be verified against the machine’s individual build configuration.

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OKUMA MILLAC 761VII – 2017 – TOOL CHANGER

Specification	Details
Tool Changer Type	Automatic Tool Changer
Tool Taper	CAT 50
Tool Capacity	Configuration Dependent
Automatic Tool Change	Standard
Tool Management	CNC Controlled
Toolholders	50-Taper
Heavy-Duty Tooling	Supported
Long Tools	Supported
Tool Monitoring	Available
Production Capability	High

The automatic tool changer allows the MILLAC 761VII to perform multiple machining operations without manual tool changes.

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OKUMA MILLAC 761VII – 2017 – CONTROL SYSTEM

Specification	Details
CNC Control	OKUMA OSP-P300M
Control Manufacturer	Okuma
Display	Color LCD
Programming	G-Code
Conversational Programming	Available
Tool Offset Management	Standard
Work Offset Management	Standard
High-Speed Machining	Available
Rigid Tapping	Available
Tool Management	Standard
Diagnostics	Standard
Ethernet	Available
USB	Available

The Okuma OSP-P300M control provides integrated CNC functionality for 3-axis machining, high-speed contouring, tool management, and production monitoring.

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OKUMA MILLAC 761VII – 2017 – FEEDRATES

Specification	Details
X-Axis Rapid Traverse	Configuration Dependent
Y-Axis Rapid Traverse	Configuration Dependent
Z-Axis Rapid Traverse	Configuration Dependent
Maximum Cutting Feedrate	Configuration Dependent
Feedrate Override	Standard
Linear Interpolation	Yes
Circular Interpolation	Yes
High-Speed Machining	Available
Rapid Traverse	High-Speed

The machine is designed to maintain efficient axis movement while providing the rigidity required for large-part machining.

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OKUMA MILLAC 761VII – 2017 – COOLANT & CHIP MANAGEMENT

Specification	Details
Flood Coolant	Standard
Coolant Pump	Standard
Coolant Tank	Standard
High-Pressure Coolant	Available
Through-Spindle Coolant	Available
Chip Conveyor	Available / Configuration Dependent
Chip Auger	Available
Coolant Filtration	Configuration Dependent
Mist Collector	Optional
Oil Skimmer	Optional

For heavy production work, a chip conveyor and high-pressure coolant system can significantly improve chip evacuation and cutting performance.

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OKUMA MILLAC 761VII – 2017 – AUTOMATION / PROBING

Specification	Details
Automatic Tool Changer	Standard
Work Probe	Optional
Tool Probe	Optional
Tool Measurement	Available
4th-Axis Integration	Available
5th-Axis Integration	Available
Rotary Table	Optional
Automatic Tool Offset	Available
Production Automation	Available
Robotic Loading	Configuration Dependent

The machine can be equipped with probing and rotary-axis systems to reduce setup time and improve dimensional control.

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OKUMA MILLAC 761VII – 2017 – POWER REQUIREMENTS

Specification	Details
Spindle Motor	Configuration Dependent
Electrical Service	Industrial Three-Phase
Input Voltage	Configuration Dependent
Shop Air	Required
Hydraulic System	Configuration Dependent
Electrical Cabinet	Okuma
Power Requirements	Machine Specific
Transformer	Configuration Dependent
Installation	Industrial

Electrical requirements should be confirmed using the machine’s specific electrical documentation before installation.

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OKUMA MILLAC 761VII – 2017 – DIMENSIONS

Specification	Details
Machine Type	Large Vertical Machining Center
Machine Width	Configuration Dependent
Machine Depth	Configuration Dependent
Machine Height	Configuration Dependent
Machine Weight	Heavy-Duty Industrial
Floor Space	Large
Installation	Industrial
Rigging	Required
Chip Conveyor	Adds Overall Length

The actual shipping dimensions and weight depend on table configuration, chip conveyor, coolant equipment, rotary axes, and other accessories.

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OKUMA MILLAC 761VII – 2017 – GENERAL INFORMATION

Specification	Details
Manufacturer	Okuma
Model	MILLAC 761VII
Year	2017
Machine Category	Vertical Machining Center
Machine Type	Heavy-Duty CNC VMC
Axis Configuration	3-Axis
X-Axis Travel	Approx. 60″
Y-Axis Travel	Approx. 30″
Z-Axis Travel	Approx. 28″
Spindle Taper	CAT 50
Spindle Speed	Configuration Dependent
Spindle Power	Configuration Dependent
Tool Changer	Automatic
CNC Control	OSP-P300M
4th-Axis Capability	Available
5th-Axis Capability	Available
Through-Spindle Coolant	Available
Chip Conveyor	Configuration Dependent

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INDUSTRIES THAT USE OKUMA MILLAC 761VII

The OKUMA MILLAC 761VII is suitable for:

• Aerospace
• Defense
• Automotive
• Energy
• Oil and gas
• Heavy equipment
• Mining
• Industrial machinery
• Power generation
• General machine shops
• Contract manufacturing
• Tool and die
• Large-part machining
• Precision engineering

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TYPICAL PARTS OKUMA MILLAC 761VII CAN PRODUCE

The MILLAC 761VII can produce:

• Large machine bases
• Structural components
• Aerospace components
• Engine components
• Heavy equipment components
• Pump housings
• Valve bodies
• Large brackets
• Fixtures
• Jigs
• Dies
• Industrial machinery components
• Energy-sector components
• Large plates and housings

Typical operations include face milling, pocketing, contouring, drilling, boring, tapping, reaming, slotting, thread milling, and heavy roughing.

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WHY CHOOSE OKUMA MILLAC 761VII

The biggest advantage of the OKUMA MILLAC 761VII is its combination of large-axis travel, heavy-duty construction, 50-taper tooling, and high-capacity machining capability.

With approximately 60 inches of X-axis travel, the machine can accommodate long components that are beyond the capacity of many conventional vertical machining centers. The approximately 30-inch Y travel and 28-inch Z travel further expand its ability to machine large and complex workpieces.

The 50-taper spindle provides the rigidity necessary for heavy material removal and large-diameter tooling. This is especially important in industries such as aerospace, energy, heavy equipment, and industrial machinery where large workpieces frequently require significant roughing operations.

Another advantage is the machine’s ability to accept 4th- and 5th-axis equipment, allowing manufacturers to expand the MILLAC 761VII from a conventional 3-axis VMC into a more versatile machining platform.

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WHY BUY USED OKUMA MILLAC 761VII – 2017

A used 2017 OKUMA MILLAC 761VII can provide manufacturers with large-format machining capacity without the capital investment associated with purchasing a new heavy-duty VMC.

The machine’s large work envelope makes it particularly attractive to shops that regularly machine components too large for standard 40-taper vertical machining centers.

When evaluating a used machine, buyers should inspect the spindle, ballscrews, linear guides, table, way covers, automatic tool changer, coolant system, lubrication system, electrical cabinet, and OSP control.

Important checks include spindle runout, bearing noise, axis backlash, positioning accuracy, tool-change operation, spindle taper condition, coolant pressure, lubrication performance, and evidence of crashes.

Because this is a large-format machine, the condition of the table, linear ways, ballscrews, and spindle should receive particular attention. Heavy fixtures and workpieces can accelerate wear if the machine has been subjected to demanding production environments.

A machine equipped with chip conveyor, through-spindle coolant, high-pressure coolant, probing, 4th-axis equipment, and extensive CAT 50 tooling will generally command a higher resale value.

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HOW MUCH DOES A USED OKUMA MILLAC 761VII – 2017 COST?

The value of a 2017 OKUMA MILLAC 761VII depends on spindle hours, condition, spindle configuration, tooling, control condition, coolant system, chip conveyor, and any installed rotary-axis equipment.

For inventory valuation, I would use:

USED OKUMA MILLAC 761VII – 2017 PRICE RANGE	ESTIMATED COST
High Hours / Basic Configuration	$75,000 – $90,000
Functional Used Machine	$90,000 – $105,000
Good Condition / Production Ready	$105,000 – $120,000
Excellent / Well Equipped	$120,000 – $140,000
Low Hours / Premium Configuration	$140,000 – $160,000+

For a 2017 OKUMA MILLAC 761VII in good working condition, I would estimate approximately $100,000–$135,000 USD.

For your inventory listing, I would recommend a practical asking-price range of $115,000–$135,000 USD for a clean, operational machine with reasonable hours and desirable options.

A low-hour machine equipped with high-power spindle, CAT 50 tooling, through-spindle coolant, chip conveyor, probing, and 4th/5th-axis equipment could potentially command $135,000–$160,000+.

A higher-hour base configuration could fall closer to $75,000–$100,000.

Best estimated listing value: $115,000–$135,000 USD.