Used Okuma MCR-A5CII CNC Gantry Milling Machine Specifications
This used Okuma MCR-A5CII CNC gantry milling machine is a Japan-built double-column machining solution with 4200 x 3100 x 800 mm X/Y/Z travel, 1000 mm W-axis travel, a 2000 x 4000 mm table, 10000 rpm spindle speed, a 60-tool magazine, and multiple milling heads for five-face machining. It is suitable for manufacturers machining large plates, mold bases, structural components, aerospace fixtures, automotive tooling, medical equipment plates, and electronics production tooling. Stock No. 812100 is in stock, available now, and ready for immediate shipment, making it a practical option for plants that need large-format machining capacity without waiting for new-machine lead time.
Core Specifications and What They Mean in Production
The Okuma MCR-A5CII is a CNC gantry milling machine and is also commonly evaluated as a double-column machining center for large workpieces. Its value is not only in the travel figures, but in how those figures affect part envelope, tool access, setup strategy, and production flow. For procurement managers and process engineers, the key question is whether the machine can hold the target workpiece, reach the required faces, and support the necessary tooling without excessive re-clamping.
| Machine category | CNC gantry milling machine / double-column machining center |
|---|---|
| Brand and model | Okuma MCR-A5CII |
| Origin | Japan |
| Year | 2014 |
| X/Y/Z axis travel | 4200 x 3100 x 800 mm |
| W-axis travel | 1000 mm |
| Table size | 2000 x 4000 mm |
| Distance from table surface to spindle nose | 1650 mm |
| Maximum spindle speed | 10000 rpm |
| Gantry width | 2650 mm |
| Floor space | 6680 x 10730 mm |
| Machine net weight | 37000 kg |
| Tool magazine capacity | 60 tools |
| Included configuration | Four-axis linear scales, T301 vertical milling head, T302 90-degree vertical milling head, T303BC five-face milling head |
The 4200 mm X-axis travel and 4000 mm table length support long plates, mold bases, machine frames, and fixture plates that are difficult to process efficiently on smaller vertical machining centers. The 3100 mm Y-axis travel and 2650 mm gantry width are important when reviewing wide workpieces, because the part must fit through the column opening while still allowing clearance for clamps, edge machining, and tool approach.
The 800 mm Z-axis travel, 1000 mm W-axis travel, and 1650 mm distance from the table surface to the spindle nose help determine whether tall parts, riser setups, angle plates, and deep cavities can be machined. In real production, this matters for large molds, aerospace fixture blocks, welded structures, and medical or electronics tooling plates where multiple face depths may be required in a single setup.
The 10000 rpm maximum spindle speed gives the machine a broader process window than a low-speed gantry mill used mainly for heavy roughing. It can be considered for mold finishing, aluminum aerospace components, fixture plates, and general large-part milling where both material removal and surface finish are required. Final suitability still depends on cutting tools, material, clamping method, programmed feeds, and the condition verified during inspection.
How the Key Specs Affect Machine Selection
Travel and Table Size
The first selection filter is part size. A 2000 x 4000 mm table does not mean every 2000 x 4000 mm part will be easy to machine; buyers should allow space for clamps, stops, side access, tool overhang, and chip evacuation. The 4200 mm X-axis travel gives useful longitudinal reach across the table length, while the 3100 mm Y-axis travel helps cover wide parts and side positioning. For production managers, this can reduce the need to split large components into multiple setups or outsource oversized machining.
Height, Reach, and W-Axis Stroke
The 1650 mm table-to-spindle-nose distance is important for tall components, tombstone-style fixtures, and riser block setups. Combined with 800 mm Z-axis travel and 1000 mm W-axis travel, it gives the machine reach for deep features and higher workpiece envelopes. This matters in mold making and structural machining, where the part may include ribs, steps, pockets, or cast and welded geometry above the table surface.
Spindle Speed and Tool Magazine
A 10000 rpm spindle is helpful when the production mix includes aluminum, cast iron finishing, mold surfaces, and smaller tools used on a large workpiece. The 60-tool magazine supports complex programs with roughing, semi-finishing, finishing, drilling, tapping preparation, chamfering, and side-face tools in the same cycle. For factories running low-volume, high-mix work, that tool capacity can reduce setup interruptions and keep the machine productive during long programs.
Machine Mass and Floor Requirement
The 37000 kg net weight and 6680 x 10730 mm floor space should be reviewed early in the buying process. This machine is intended for a plant with proper space planning, foundation readiness, rigging access, and loading access. A factory currently relying on smaller machining centers should confirm not only part fit, but also the installation footprint and production flow around the machine.
Frequently Asked Questions
What do the 4200 x 3100 x 800 mm travels mean for part size?
These travels define how far the machine axes can move in X, Y, and Z. In production, they help determine whether the cutter can reach the full work area after the part, clamps, and fixtures are installed. For this MCR-A5CII, the 4200 mm X travel and 3100 mm Y travel support large plates, mold bases, fixtures, and structural components, while the 800 mm Z travel helps with depth and height variation.
Is the 2000 x 4000 mm table suitable for large mold bases?
Yes, the 2000 x 4000 mm table class is well suited for many large mold bases, die bases, and tooling plates. Buyers should still compare the actual workpiece size with clamp space, tool approach, side-machining requirements, and the 2650 mm gantry width before confirming fit.
Why is the 1000 mm W-axis travel important?
The W-axis provides additional vertical movement for the crossrail or spindle system, depending on machine configuration. For buyers, it matters when machining tall parts, deep pockets, large fixtures, or workpieces with multiple height levels. Together with the 1650 mm table-to-spindle-nose distance, it improves the machine’s ability to handle taller setups.
How does the 10000 rpm spindle affect material suitability?
A 10000 rpm maximum spindle speed gives more flexibility for finishing and smaller-diameter tooling than a low-speed-only gantry mill. It can be useful for mold finishing, aluminum components, fixture plates, and precision hole patterns. Material suitability still depends on tool type, cutting parameters, workholding, and verified spindle condition.
What is the benefit of the T301, T302, and T303BC head package?
The T301 vertical milling head supports standard top-face machining. The T302 90-degree head supports side-face and horizontal-feature machining. The T303BC five-face milling head expands access to multiple sides of the workpiece, which can reduce re-clamping for molds, die bases, structural parts, and large fixtures.
Who should consider this used Okuma MCR-A5CII CNC gantry milling machine?
It is best suited to factories and job shops that need large-part machining capacity for automotive tooling, aerospace fixtures, mold making, medical equipment plates, electronics tooling, and general machinery components. It is especially attractive when current equipment lacks table size, axis travel, or multi-face machining access.
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