Okuma MA-550V

$140,000 - $185,000 Updated 2026-03-13

Key Specifications

X Travel

1,300 mm (51.2 in)

Y Travel

560 mm (22.0 in)

Z Travel

560 mm (22.0 in)

Max Spindle

min⁻¹

Spindle Taper

No. 50 (BT 50)

Tool Capacity

32 (standard); 48 or 60 optional

Overview

The Okuma MA-550V is a production-oriented vertical machining center built for high-duty-cycle manufacturing environments. With 1,300 x 560 x 560 mm (51.2 x 22.0 x 22.0 in) of travel, it delivers a large work envelope with the rigidity needed for continuous production cutting in steel, cast iron, and aluminum.

The standard spindle turns 6,000 RPM with 15/11 kW (20/15 hp) through a No. 50 (BT 50) taper, providing the clamping force and rigidity that production environments demand. Optional configurations reach 12,000 and 25,000 RPM with a 22/15 kW (30/20 hp) motor for shops that need higher spindle speeds for aluminum or finishing operations. The BT 50 taper is a differentiator in this size class, where many competitors use BT 40.

The MA-550V uses roller guides for fast axis movement, complemented by pre-tensioned ball screws with core cooling. This construction prioritizes production speed over the heavy-cut damping of box-way machines: faster rapids, faster acceleration, and shorter cycle times on parts that involve significant non-cutting movement.

The 1,300 x 560 mm (51.2 x 22.0 in) table with 32-tool ATC (expandable to 48 or 60 tools) handles production volumes. The 800 kg (1,764 lb) table load accommodates fixtures and multi-part setups common in automotive and general manufacturing.

Okuma's Thermo-Friendly Concept is standard, and the ball screw core cooling helps maintain thermal stability during continuous high-speed cutting. The OSP-P300A control provides production-friendly features including bar code reader integration and tool life management.

New MA-550V machines run $140,000-$185,000. The MA-V series targets production shops that need BT 50 rigidity with roller-guide speed. Direct competitors include the Mazak VTC-530C, Doosan DNM 650 II, and Hyundai Wia KF5600.

Full Specifications

Parameter	Value
X-Axis Travel	1,300 mm (51.2 in)
Y-Axis Travel	560 mm (22.0 in)
Z-Axis Travel	560 mm (22.0 in)
Max Spindle Speed	min⁻¹
Spindle Taper	No. 50 (BT 50)
Spindle Motor Power	kW
Tool Capacity	32 (standard); 48 or 60 optional
Table Size	1,300 x 560
Max Table Load	800 kg (1,764 lb)
Rapid Traverse Rate	40 m/min (X/Y); 32 m/min (Z)
Positioning Accuracy	±0.005 mm
Repeatability	±0.003 mm
Machine Weight	9,200 kg (20,282 lb)
CNC Control	OSP-P300A
Guide Type	Linear roller guides (all axes)
Max Machining Volume	1,300 x 560 x 560
Rapid Traverse X Y Z	40 /40 / 30
Okuma Global Repair Center	Charlotte, North Carolina
Inches	Metric
Spindle Speed	50-6,000 [50-12,000, 50-25,000]
Spindle Motor Power	22/15/11
Magazine Capacity	32 [48]

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

Strengths & Limitations

Strengths

BT 50 spindle taper provides superior clamping force for large-diameter tools and heavy roughing operations
1,300 mm X-travel with roller guides delivers both work envelope size and fast axis speed
560 mm Z-travel provides meaningful depth for tall parts and deep cavity work
Ball screw core cooling maintains thermal stability during continuous high-speed production
32-tool standard magazine is production-ready out of the box, expandable to 60 tools
9,200 kg machine weight provides mass-based vibration isolation during heavy cuts
Roller guides with pre-tensioned ball screws deliver fast rapids for short cycle times

Limitations

Standard 6,000 RPM spindle is slow for aluminum-heavy shops; high-speed options add cost
Roller guides trade some heavy-cut vibration damping compared to box-way MB series machines
Starting at $140K, it's a significant investment compared to BT 40 alternatives with similar travel
BT 50 tooling costs more than BT 40, increasing tooling investment across the shop
9,200 kg weight and large footprint require serious foundation and floor space planning

Best For

Automotive production shops machining cast iron and steel components at volume General manufacturing facilities needing BT 50 rigidity for heavy roughing with large face mills Shops stepping up from BT 40 machines that need more spindle clamping force and rigidity Production environments running mixed steel and aluminum that need versatile spindle options Heavy equipment manufacturers machining medium-to-large structural components

Frequently Asked Questions

01 What does an Okuma MA-550V cost new?

New MA-550V machines run $140,000-$185,000 depending on spindle configuration and options. High-speed spindle options, 60-tool magazines, and automation packages push toward the upper range. Used MA-550V machines from 2013-2018 sell for $75,000-$110,000.

02 Why choose BT 50 over BT 40?

BT 50 provides roughly 2.5x the clamping force of BT 40, which matters for large face mills (80+ mm diameter), heavy roughing operations, and long boring bars. If your work involves aggressive metal removal in steel and cast iron, BT 50 reduces chatter and extends tool life. For lighter work in aluminum, BT 40 is sufficient and the tooling costs less.

03 How does the MA-550V compare to the MB-56V?

Same X and Y travel (1,300 x 560 mm on the MA vs 1,050 x 560 mm on the MB-56V), but different philosophies. The MA-550V uses BT 50 with roller guides for production speed and heavy tool clamping. The MB-56V uses BT 40 with box ways for surface finish quality. Choose the MA for production, the MB for precision finishing.

04 Is the MA-550V suitable for 5-axis work?

The MA-550V is a 3-axis machine, but it supports 4th-axis rotary table integration with BT 50 hydraulic connections. For true 5-axis work, Okuma offers the MU series. The MA-550V is best suited for 3-axis production work or 3+1 with a rotary table.

05 What maintenance does the MA-550V require?

Standard maintenance includes way lube system checks, ball screw lubrication, coolant system maintenance, and spindle bearing monitoring. The roller guides require periodic pre-load verification. Okuma recommends annual precision checks. The Thermo-Friendly system is maintenance-free and self-calibrating.