Okuma MCR-S

$800,000 - $1,500,000 Updated 2026-03-13

Key Specifications

Max Spindle

10,000 RPM

Tool Capacity

50 tools

Spindle Power

26/22

effective gate width

2,650 mm / 3,150 mm

table work surface

2,000 x 4,000 mm to 2,500 x 6,500 mm

spindle torque

735/622 Nm (30 min/continuous)

Overview

The Okuma MCR-S is a large-scale double-column machining center built for heavy mold and die work, aerospace structural components, and large precision parts. With effective gate widths of 2,650 mm and 3,150 mm and table work surfaces ranging from 2,000 x 4,000 mm up to 2,500 x 6,500 mm, the MCR-S handles workpieces that most vertical machining centers cannot accommodate. The 10,000 RPM spindle delivers 26 kW (35 hp) at 30-minute rating and 22 kW (30 hp) continuous, producing a maximum torque of 735 Nm at 30-minute duty and 622 Nm continuous.

Rapid traverse rates reach 20 m/min on the X and Y axes with 10 m/min on the Z-axis, reflecting the machine's focus on heavy cutting rather than high-speed repositioning. The MCR-S achieves a material removal rate of 710 cm3/min in S45C steel with the Z-axis extension at 800 mm, demonstrating serious roughing capability. Tool storage accommodates 50 tools standard. The machine runs on Okuma's OSP-P500M control, providing conversational and G-code programming with Okuma's proprietary Thermo-Friendly Concept for thermal stability.

Z-axis thermal displacement is controlled to 1.7 micrometers per 200 mm, and area step difference stays within 10 micrometers thanks to absolute scales on X, Y, Z, and W axes. Standard intelligent technologies include the Anti-Crash System for collision prevention, Process Navi for cutting condition optimization, and Servo Navi for servo parameter tuning. Machine dimensions range from 7,370 x 10,730 x 6,420 mm to 7,870 x 16,430 x 6,700 mm depending on table configuration.

The MCR-S competes with the DMG Mori DMF series, Mazak VTC-800, and SNK bridge mills in the large double-column segment. Okuma's advantage lies in the Thermo-Friendly Concept maintaining dimensional accuracy across long machining cycles without air-conditioned enclosures. New MCR-S machines typically price in the $800,000 to $1,500,000 range depending on table size and options. Specs sourced from Okuma Corporation published data.

Full Specifications

Parameter	Value
Effective Gate Width	2,650 mm / 3,150 mm
Table Work Surface	2,000 x 4,000 mm to 2,500 x 6,500 mm
Max Spindle Speed	10,000 RPM
Spindle Motor Power	26/22
Spindle Torque	735/622 Nm (30 min/continuous)
Rapid Traverse Xy	20 m/min (787 ipm)
Rapid Traverse Z	10 m/min (394 ipm)
Tool Capacity	50 tools
Material Removal Rate	710 cm³/min (S45C)
Z Axis Thermal Displacement	1.7 µm / 200 mm
Area Step Difference	≤10 µm
Position Feedback	Absolute scales on X, Y, Z, W axes
CNC Control	Okuma OSP-P500M
Machine Dimensions	7,370 x 10,730 x 6,420 mm to 7,870 x 16,430 x 6,700 mm (W x D x H)
Width Between Columns	2,650 [3,150]
Table Travel	4,200 [5,200; 6,700]
Spindle Range	30~10,000
Rapid Traverse Rate X	30
Rapid Traverse Rate Y	32
Rapid Traverse Rate Z	15
Okuma Global Repair Center	Charlotte, North Carolina
Inches	Metric
Magazine Capacity	50 [80, 100, 120, 180]

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

Strengths & Limitations

Strengths

Thermo-Friendly Concept maintains Z-axis thermal displacement within 1.7 µm per 200 mm, enabling consistent accuracy across long unmanned machining cycles without climate-controlled enclosures
Material removal rate of 710 cm³/min in S45C steel demonstrates heavy roughing capability for large mold and die applications
Absolute scales on all four axes (X, Y, Z, W) provide direct position feedback independent of ball screw thermal growth for superior accuracy
Anti-Crash System with 3D model-based collision detection prevents costly crashes when machining complex large workpieces with tight clearances
Table configurations from 2,000 x 4,000 mm up to 2,500 x 6,500 mm cover a wide range of large-part applications without stepping up to a floor-type boring mill
Process Navi and Servo Navi intelligent technologies optimize cutting conditions and servo parameters automatically, reducing operator skill dependency

Limitations

20 m/min rapid traverse on X/Y and 10 m/min on Z are slow compared to high-speed bridge mills, making this machine better suited for heavy cutting than high-speed finishing
Machine footprint up to 7,870 x 16,430 mm requires substantial floor space and foundation work including pit construction for some configurations
50-tool magazine is relatively limited for complex multi-operation die work — shops running diverse tooling sets may need to plan tool changes between operations
Premium pricing starting around $800,000 limits this machine to shops with consistent large-part volume to justify the investment

Best For

Mold and die shops machining large automotive stamping dies, injection molds, and forging dies requiring high material removal rates and thermal stability Aerospace manufacturers producing large structural components, wing ribs, and bulkheads from aluminum and titanium plate stock Energy sector manufacturers machining large turbine components, generator housings, and wind turbine parts General heavy industry shops producing large machine bases, frames, and structural weldments requiring precision milling Shops replacing multiple smaller VMCs with a single large-envelope machine to reduce setup time on oversized workpieces

Frequently Asked Questions

01 What does a new Okuma MCR-S cost?

New MCR-S machines typically price between $800,000 and $1,500,000 depending on table size configuration (2,000 x 4,000 mm to 2,500 x 6,500 mm), spindle options, and accessories. The larger table configurations and optional features like automatic tool length measurement and high-pressure coolant add significant cost. Used MCR-S machines from 2010-2020 trade between $300,000 and $700,000 depending on hours and condition.

02 How does the Thermo-Friendly Concept work on the MCR-S?

Okuma's Thermo-Friendly Concept uses a combination of machine design that embraces rather than fights thermal growth, plus real-time compensation algorithms. On the MCR-S, Z-axis thermal displacement is held to 1.7 µm per 200 mm without requiring an air-conditioned enclosure. The system uses temperature sensors throughout the machine structure and spindle to model and compensate for thermal deformation in real time.

03 What materials can the MCR-S cut effectively?

The MCR-S handles a wide range of materials from aluminum and cast iron through medium-carbon steel (S45C) and alloy steels. With 735 Nm of spindle torque at 30-minute duty, the machine has serious roughing capability in steel and cast iron. For titanium and Inconel work, the rigid double-column structure and high torque make it capable, though cycle times will be longer than dedicated aerospace machines with higher spindle power.

04 What is the Anti-Crash System?

Okuma's Anti-Crash System uses a 3D model of the machine, workpiece, fixtures, and tools to detect potential collisions before they occur. When a collision is predicted, the system stops axis motion before contact. This is particularly valuable on large double-column machines where the cost of a spindle crash can exceed $50,000 in repairs and downtime.