Mitsubishi RCMX1204MO NX2525 Cermet Turning Insert | Genuine MMC
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RCMX1204MO NX2525
Mitsubishi Materials | Large-Scale Cermet Profiling Specialist
The Mitsubishi RCMX1204MO NX2525 is a robust 12mm round cermet turning insert designed for high-efficiency finishing and copy turning. By utilizing NX2525 cermet technology, this insert bridges the gap between traditional carbide and ceramics, offering extreme resistance to oxidation and adhesion. It is the premier indexable turning choice for machining steel when a mirror-like surface finish and long-term dimensional stability are the primary requirements.
Technical Specifications
| ISO Designation | RCMX1204MO |
|---|---|
| ANSI Designation | RCMX 43 MO |
| Grade Category | NX2525 (Titanium Carbonitride Cermet) |
| Inscribed Circle ($IC$) | 12.0 mm (0.472") |
| Thickness ($S$) | 4.76 mm (0.187") |
NX2525 High-Gloss Grade
The NX2525 grade is a specialized cermet (ceramic-metal composite) that excels in high-speed finishing. It maintains a sharp cutting edge longer than carbide because it does not react chemically with the steel workpiece. This prevents built-up edge (BUE) and allows for consistent CNC turning results across long production runs.
MO Profiling Chipbreaker
The MO chipbreaker is a medium-duty geometry that provides a reinforced edge for profiling and copy milling applications. On a round (R) insert, the MO design ensures smooth chip flow even as the lead angle varies with the depth of cut, reducing cutting resistance and preventing vibration on larger workpieces.
Recommended Cutting Parameters
Optimized for Steel Finishing (P05 - P25)
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) |
|---|---|---|
| Low Carbon Steel (S15C) | 150 - 450 m/min | 0.10 - 0.35 mm/rev |
| Alloy Steel (SCM440) | 120 - 350 m/min | 0.08 - 0.25 mm/rev |
| Grey Cast Iron | 150 - 300 m/min | 0.15 - 0.40 mm/rev |
SRDC / SRGC HOLDER SYSTEM
The RCMX1204MO is compatible with Mitsubishi SRDC turning tool holders for heavy-duty finishing.
Shop Tool Holders →Metric vs. Inch Cross-Reference
| Feature | Metric Designation | Inch Designation (Approx.) |
|---|---|---|
| Diameter | 12 (12.0 mm) | 4 (4/8" or 0.472") |
| Thickness | 04 (4.76 mm) | 3 (3/16" or 0.187") |