Highly accurate through entire workspace area Double-Column Machining Center MCR-BⅤ

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Heavy-duty machining and on-board gauging
Heavy-duty machining and on-board gauging
Highly efficient heavy-duty machining and high-efficiency machining.
3D Machine View
3D Machine View
A 3D representation of the MCR-BⅤ(30x50).

With the cutting capacity and work envelope
to handle a wide range of applications

Shortening of cycle times by powerful cutting

By using a high torque, high output integral motor/spindle as standard, it is possible to handle power cutting to high precision finishing.

  • Machining capacity: 1,170cm3/min (workpiece material: S45C, Z-axis protrusion: 600 mm)
  • Spindle speed: 6,000min-1
  • Maximum output: 43/37/30kW (10 min/cont (high speed)/cont (low speed))
  • Maximum torque: 1,406/981 N-m (10 min/cont)

* Note: The data shown here represent "actual data," which may not be obtained under different environmental, machine specifications, tooling, cutting, and other conditions.

Expanding work envelopes and providing speedups

Rapid traverse rate improved

Rapid traverse

X axis: 30m/min* double the previous model

Y axis: 32m/min 1.6 times that of the previous machine

* X-axis travel: 6,700 mm or less

Larger work envelope

The work envelope has been made bigger by extending the X-axis travel distance and widening the effective width between columns.
Ex: 30 × 50 type

X-axis travel: 5,200mm
+200 mm compared to the previous model

Effective width between columns: 3,150mm
+100 mm compared to the previous model

World-class Okuma High-Accuracy Technology (Standard).

Equipped with Thermo-Friendly Premium specifications, AbsoScale detection, and 3D Calibration as standard equipment to achieve stable machining accuracy even during long-term continuous operation.

Thermo-Friendly Premium that suppress thermal deformation

High accuracy is enabled in normal factory environments

Okuma's Thermo-Friendly Concept achieves high dimensional stability not only when the room temperature changes, but also at machine startups or when machining is resumed. To stabilize thermal deformation, warming-up time is shortened and the burden of dimensional correction during machining restart is reduced.

The MCR-BV is equipped with TAS-C2: Thermo Active Stabilizer—Construction for large machines, a Thermo-Friendly Premium spec, for optimal control of the machine to maintain high machining accuracy when ambient temperatures change. Moreover, controlling dimensional changes due to table thermal expansion makes possible stable accuracy even for large workpieces.

Expanding work envelopes and providing speedups

3D Calibration for volumetric accuracy comparisons

Any operator can easily calibrate machine accuracy

Factory floor surface deformation over the long term, affects machine accuracy.
With 3D Calibration, the accuracy master, which is the absolute accuracy standard, is installed on the table, and the automatic measurement of the touch probe is performed with a simple operation to check and calibrate the machine accuracy. By calibrating regularly, high accuracy can be maintained over the long term.

Note: The comparison of machine accuracy measurement values that can be calibrated differs depending on the machine specifications and type of accuracy master (Optional) used.

3D Calibration for volumetric accuracy comparisons

Accuracy Stability Diagnosis Function
Self-diagnosis of changes in machine accuracy

To diagnose mechanical thermal deformation due to non-uniform factory temperatures

On production floors where the machine is exposed to wind or sunlight, the temperature around the machine becomes uneven, creating an environment in which the thermal deformation of the machine tends to increase.
The Accuracy Stability Diagnosis Function estimates the change in machine accuracy due to non-uniform factory temperatures, quantifies it as "accuracy stability" and displays that information on the screen.
If the accuracy is unstable, the operator will be notified by a message or alarm. More stable machining accuracy can be achieved by performing accuracy checks and adjustments when notified.

Diagnosing changes in machine accuracy from factory floor thermal deformation

The change in machine accuracy due to thermal deformation of the production floor is also estimated and quantified as a factor of "accuracy stability". Notifications of the best timing for machine accuracy adjustments with 3D Calibration etc, will be provided.

Accuracy Stability Diagnosis Function Self-diagnosis of changes in machine accuracy

Highlighted Specs

Item Unit MCR-BⅤ
Effective width between columns mm (in) 2,650 (104.33), 3,150 (124.02), 3,650 (143.70)
Table working surface mm (in) 2,000 × 4,000 (78.74 × 157.48) to 3,000 × 12,000 (118.11 × 472.44)
Spindle speed min-1 30 to 6,000
Tool storage tools 50
Motor kW (hp) 43/37/30 (57/50/40) (10 min /cont (high speed) / cont (low speed) )
Machine size
(W × D × H)
mm (in) 7,370 × 10,730 × 6,420 (290.16 × 422.44 × 252.76) to
8,340 × 27,930 × 6,700 (328.35 × 1,099.61 × 263.78)
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