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MCR-BIII

MCR-BIII
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MCR-BIII

Product catalog summary
Overview
The document details a high-performance double-column machining center designed for versatility, safety, and functionality, suitable for various machining processes including heavy cutting and high-accuracy finishing, particularly for die/mold jobs and large complex parts.
Specifications
  • Features full-enclosure shielding and full machine length chip disposal.
  • NC synchronized control of cross rail vertical travel with high-speed action.
  • Offers a variety of changeable attachment heads and spindle speeds, with optional features like Hyper-Surface and axis feed cooling.
Construction and Design
  • Highly rigid and accurate construction with double-column design for closer tolerances and greater rigidity.
  • Includes powerful clamping devices and long crossrail guideways for high accuracy and longevity.
  • Table uses a combined roller pack and slideway system to absorb high levels of cutting vibrations.
Spindle Options
  • Standard spindle speed is 4,000 min-1, with optional speeds up to 10,000 min-1.
  • Various spindle options offer different maximum outputs and torques.
Attachment Heads
  • Includes extension heads, 90° angular heads, and universal index heads.
  • Supports automatic tool and attachment changers for increased productivity.
Thermo-Friendly Concept
  • Incorporates Thermo-Friendly Concept to manage thermal deformation and maintain high dimensional accuracy.
  • Features Thermo Active Stabilizer for both spindle and table.
Energy Efficiency
  • Includes intelligent energy-saving functions like ECO Idling Stop and ECO Power Monitor.
Advanced Technologies
  • Auto Attachment Head Compensation reduces setup time and ensures high machining accuracy.
  • Collision Avoidance System prevents machine collisions by simulating movements in real-time.
  • SERVONAVI AI adjusts servo parameters based on workpiece weight, reducing cycle times.
  • Hyper-Surface Technology improves surface quality by compensating for machining data errors.
High-Speed and High-Accuracy Machining
  • Specifications for high-speed machining include spindle speeds up to 30,000 min-1 and continuous cutting feed speeds up to 20 m/min.
Optional Features and Accessories
  • Includes various spindle speeds, tool magazine capacities, and coolant systems for customization.
Procedures and Standards
  • Guidelines for tool usage and working ranges with specific heads.
  • Next-Generation Intelligent CNC integrates advanced digitization and networking for enhanced productivity.
Recommendations
  • Use Maintenance Monitor for routine inspection support and Okuma’s Connect Plan for analytics.
  • Utilize Collision Avoidance System for enhanced machine operation.
Key Data from Tables
  • Includes travel, table dimensions, spindle specifications, feedrates, and automatic tool changer capacities.
Critical Information
  • Maximum tool mass moment and weight limitations are emphasized.
  • Benefits of the OSP suite and Connect Plan for smart manufacturing are highlighted.
Machine Specifications (Elevating Crossrail)
  • Specifications for a machine with an elevating crossrail, including spindle speeds and tool magazine options.
Dimensional and Installation Drawings
  • Includes detailed drawings specifying measurements and layout of components.
Additional Notes
  • Specifications are subject to change, and safety precautions are emphasized.
  • Product is subject to export control regulations under Japanese law.
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Catalog excerpts

MCR-BIII-2

Double-Column Machining Center [5-Face Machining] A world-class double-column machining center NC synchronized control of cross rail vertical travel • Rapid traverse W axis: 3 m/min High speed action • Rapid traverse X axis: 15 m/min Y axis: 20 m/min Z axis: 15 m/min (double ball screw) Full-enclosure shielding Full machine length chip disposal The most versatile machine for all machining processes, from heavy cutting to high-accuracy finishing for die/mold jobs and large complex parts.Safe and comfortableFast and highly functional operating environment I Lots of attachment heads • Wide variety...

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MCR-BIII-3

Okuma double-column machining centers with highly rigid and accurate construction Stability and high-accuracy from the spindlehead ways A ram-type spindlehead for super rigidity With a cross section of 350 x 350 mm (13.78 x 13.78 in.) there's enough rigidity in the square ram-type spindlehead to handle any horizontal cut. Big parts machining expertise. This machine was engineered with Okuma’s field-proven experience of building in exceptional power, rigidity, and smooth operation to assure close tolerances over time and high production. The shudder free design means heavy-duty face milling and...

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MCR-BIII-4

All kinds of shapes can be machined under the best conditions with the abundant variation of attachments. Many different processes can be performed continuously in auto operation with the auto tool changer (ATC) and auto attachment changer (AAC), greatly increasing productivity. For oil hole, air hole, thru-spindle coolant, oil mist, and dual contact specifications for each spindle (some specifications not available). One ATC arm performs the changes for both the horizontal and vertical spindles. And with the next tool brought to the standby position during a machining operation, the actual tool...

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MCR-BIII-5

High accuracy is enabled in normal factory environments. ■ Highly accurate control technology Thermo-Friendly Premium Specifications (Optional)* Thermo-Friendly Specifications (Optional) Thermo-Friendly Concept Spindle thermal deformation control technology Manageble Deformation — Accurately Controlled ■ Eliminate waste with the Thermo-Friendly Concept Thermal deformation from spindle rotation controlled with high accuracy. Thermo Active Stabilizer–– Construction for large machines (TAS-C2) Thermo Active Stabilizer––Table (TAS-T) Machine startup In addition to maintaining high dimensional accuracy...

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MCR-BIII-6

Okuma Intelligent Technology exhibits powerful effect on machine shop floors SERVONAVI Optimized Servo Control Achieves long term accuracy and surface quality ■ SERVONAVI AI (Automatic Identification) ■ SERVONAVI SF (Surface Fine-tuning) ● Reversal Spike Auto Adjustment Weight Auto Setting Cycle time shortened with faster acceleration Collision Avoidance System (Optional) Collision prevention Work Weight Auto Setting estimates the weight of the workpiece and fixture on the table and automatically sets the linear axis servo parameters, including acceleration, to the optimum values. Cycle times...

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MCR-BIII-7

I High-speed machining • Spindle speed • Continuous cutting feed speed Fast contouring Hyper-Surface In addition to the features provided by Super-NURBS, Hyper-Surface automatically “corrects”, machining data to improve workpiece surface quality. High-accuracy machining • Thermo-Friendly Premium Specs (Optional) • Auto Attachment Head Compensation • Feed axis Deflection Auto Adjustment Powerful software for superb support of die/mold applications I Spindleheads with built-in attachment heads ■ Extension head ■ Universal index head With auto machining data compensation Crease marks and uneven...

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MCR-BIII-8

I Many functions for a wider range of applications The Okuma NC makes it all possible. Things impossible on non-NC machines like User Task for example, are programmable like on a PC; making for a tremendous range of machining center applications. ■ Geometric change (Optional) 2 Programmable mirror image Mirror image operations can be command programmable as well as handled by switching. Using the points commanded by local coordinates, the drawings produced by a part program can be enlarged or reduced with this function. ■ User Tasks Variables can be used with arithmetic and branch commands to...

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MCR-BIII-9

Spindle speed • Maximum non-adjacent tool size This is the maximum tool size when there are no tools on either side of a tool. * Note: Commercially available milling chucks may interfere with ATC arm and other _ _ , tools. Prior to use, confirm size dimensions with the tool manufacturer Note: Tools with a tool mass moment of 29.4 N-m or more cannot be used. With tools of 19.6 N-m or less, ATC can be used with high-speed operation. ■ Optional Accessories and Optional Specifications ■ Working ranges [When using an L150 extension head, a 90° angular head, and a 300-mm (11.81 in) tool] Unit: mm (in)...

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MCR-BIII-10

I With revamped operation and responsiveness— ease of use for machine shops first! Smart factories implement advanced digitization and networking (IIoT) in manufacturing to achieve enhanced productivity and added value. The OSP has evolved tremendously as a CNC suited to advanced intelligent technology. Okuma’s new control uses the latest CPUs for a tremendous boost in operability, rendering performance, and processing speed. The OSP suite also features a full range of useful apps that could only come from a machine tool manufacturer, making smart manufacturing a reality. Smooth, comfortable...

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MCR-BIII-11

4. 32-tool ATCs have limitations on 25 or larger machines 5. [ ] show the values with specifications of 3,600/6,000/8,000/10,000 min-1 '6. X axis motor is 14 kW with 30 x 120, 35 x 120. *1. [ ] Numbers when extension head length is 250 mm. *2. [ ] for 6,000/8,000/10,000 min-1 *3. Decelerates at end of Y-axis travel.

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MCR-BIII-12

■ Elevating Crossrail (MCR-B -E) Dimensional Drawing Installation Drawing Air inlet 1,460 mm from floor 4,250 (167.32) 1,660 Cooling unit Hydraulic unit AAC/ATC Chip shield Safety plug Slush tank Power inlet 1,275 mm, 2,000 mm from floor Control cabinet Safety plug Chain Chip shield Safety fence Machine center * Please inquire for safety cover specifications, position and other details *2. Upper figures for 150-L extension head; lower figures for 250-L extension head *1. Upper figures for 4,000 min-1, 6,000 min-1; lower figures for 8,000 min-1 or faster spindles *3. Effective width between columns...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.