Okuma GENOS M660-V-e

$130,000 - $185,000 Updated 2026-03-11

Key Specifications

X Travel

1,500 mm (59.06 in)

Y Travel

660 mm (25.98 in)

Z Travel

660 mm (25.98 in)

Max Spindle

12,000 RPM (15,000 RPM optional)

Spindle Taper

CAT 40 Big Plus / CAT 50 Big Plus

Tool Capacity

Overview

The Okuma GENOS M660-V-e is the wide-travel version of Okuma's value-line VMC series, delivering 1,500 mm (59 inches) of X-axis travel in a machine that costs significantly less than Okuma's flagship MA-series. If your parts are long — engine blocks, structural components, rail fittings, mold bases — and you need Okuma's build quality without Okuma's top-tier pricing, the M660-V-e is where you look.

The numbers tell the story: 1,500 x 660 x 660 mm of travel (59 x 26 x 26 inches), a 1,530 x 660 mm table that holds up to 1,500 kg, and a direct-drive spindle at 12,000 RPM (15,000 RPM optional) with 22 kW (29.5 hp) continuous power. Rapids hit 40 m/min on X and Y, 32 m/min on Z. The 32-tool ATC changes tools in 1.5 seconds tool-to-tool. Those specs put it toe-to-toe with the DMG Mori CMX 1100 V and the Mazak VCN-600 in terms of work envelope, but the Okuma's cast-iron construction and Thermo-Friendly Concept give it an edge in thermal stability.

Okuma's Thermo-Friendly Concept is the engineering story here. Four independent bi-directional cooling channels run through the spindle — bearing housing, motor, bearing cap, and the space between upper and lower thrust bearings. Combined with thermocouples embedded throughout the cast-iron frame, the machine compensates for thermal growth in real-time. In practice, this means you hold tighter tolerances across an 8-hour shift without adjusting offsets.

The OSP-P control is Okuma's own — not a Fanuc or Siemens. That's a love-it-or-leave-it proposition. The full touchscreen interface with keyboard works well, and the open-architecture design supports Ethernet connectivity and MT Connect for shop floor monitoring. For shops already running Okuma equipment, the M660-V-e fits right in. For Fanuc shops, budget some training time. At its price point, the M660-V-e delivers more travel, more table capacity, and better thermal management than most competitors.

Full Specifications

Parameter	Value
X-Axis Travel	1,500 mm (59.06 in)
Y-Axis Travel	660 mm (25.98 in)
Z-Axis Travel	660 mm (25.98 in)
Table Size	1,530 x 660 mm (60.24 x 25.98 in)
Table Load Max	1,500 kg (3,307 lb)
Max Spindle Speed	12,000 RPM (15,000 RPM optional)
Spindle Motor Power	22 kW / 18.5 kW (29.5 / 24.8 hp)
Spindle Taper	CAT 40 Big Plus / CAT 50 Big Plus
Spindle Drive	Direct Drive
Spindle Cooling	Thermo-Friendly Concept (4 bi-directional channels)
Tool Capacity	32
Tool Change Time	1.5 sec (tool-to-tool)
Rapid Traverse Xy	40 m/min (1,575 ipm)
Rapid Traverse Z	32 m/min (1,260 ipm)
CNC Control	Okuma OSP-P
Connectivity	Ethernet, MT Connect

Strengths & Limitations

Strengths

1,500 mm X-axis travel accommodates long parts that won't fit on standard 40-taper VMCs with 762-1,050 mm travel
1,500 kg table load handles heavy fixtures, 4th-axis setups, and large mold bases without concern
Thermo-Friendly Concept with 4 independent spindle cooling channels maintains accuracy across full shifts
Cast-iron construction with heavy base provides vibration damping superior to weldment-based competitors
1.5-second tool-to-tool ATC minimizes non-cutting time on multi-tool programs
Direct-drive 12,000 RPM spindle eliminates belt maintenance and provides smooth power delivery

Limitations

OSP-P control is Okuma-proprietary — shops standardized on Fanuc or Siemens face a learning curve
Heavier than comparable travel machines from other builders, requiring adequate foundation and rigging
Base price above $130K puts it higher than budget VMCs like the Haas VF-4 with similar travel
CAT 50 option adds cost and limits spindle speed to 12,000 RPM versus 15,000 RPM on CAT 40
32-tool ATC capacity is adequate but tighter than 40-60 tool magazines on some HMC alternatives

Best For

Shops machining long parts — structural components, rail fittings, manifolds — that exceed 1,000 mm in X Mold and die shops working on large mold bases that need Okuma-level thermal stability Existing Okuma shops adding a wide-travel VMC that integrates with their OSP-P ecosystem Aerospace structural component machining where thermal drift over long cycles is unacceptable Job shops wanting Okuma build quality at a value-line price point for mixed material work

Frequently Asked Questions

01 What is the difference between the GENOS M660-V and the M660-V-e?

The '-e' suffix indicates the economy/export version, which is manufactured at Okuma's overseas facilities rather than in Japan. Core specifications are identical, but some options and configurations may differ. The -e version typically comes at a lower price point while maintaining Okuma's quality standards.

02 How does the Thermo-Friendly Concept work?

Okuma's Thermo-Friendly Concept uses thermocouples embedded in the machine's structure and spindle to measure thermal deformation in real-time. Four bi-directional cooling channels in the spindle actively manage heat, and the control compensates for any remaining thermal growth automatically. The result is consistent positioning accuracy regardless of ambient temperature changes or spindle warm-up state.

03 Can the GENOS M660-V-e handle steel and cast iron?

Absolutely. The 22 kW direct-drive spindle with CAT 40 Big Plus (or optional CAT 50) provides plenty of power for steel, cast iron, and stainless. The heavy cast-iron construction gives it the rigidity needed for aggressive roughing in ferrous materials. For heavy hogging in cast iron, the CAT 50 spindle option is worth considering.

04 How does the GENOS M660-V-e compare to the Haas VF-4?

Both offer roughly 50 inches of X-travel, but the Okuma has a heavier construction, Thermo-Friendly thermal management, and faster rapids (40 m/min vs 25.4 m/min). The Haas has a significantly lower base price and a larger dealer network. For precision work across long shifts, the Okuma's thermal stability is the differentiator.