Mitsubishi RCMT0803MO NX2525 Cermet Insert | High-Speed Finishing
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RCMT0803MO NX2525
Mitsubishi Materials | Cermet Technology for Mirror-Finish Profiling
The Mitsubishi RCMT0803MO NX2525 is a high-performance cermet turning insert designed for precision finishing and profiling of steel components. Unlike traditional carbide, the NX2525 cermet grade provides exceptional resistance to welding and oxidation. This round insert is the industry standard for achieving a high-gloss surface finish and maintaining strict dimensional tolerances during high-speed CNC turning.
Technical Specifications
| ISO Designation | RCMT0803MO |
|---|---|
| ANSI Designation | RCMT 2.53 MO |
| Grade Category | NX2525 (Cermet - Ceramic/Metal Composite) |
| Insert Diameter ($IC$) | 8.0 mm (0.315") |
| Thickness ($S$) | 3.18 mm (0.125") |
NX2525 Cermet Advantage
The NX2525 grade is a TiCN-based cermet that provides superior wear resistance and thermal stability. Because it has a lower affinity for metal than carbide, it virtually eliminates built-up edge (BUE). This makes it the ultimate choice for finishing carbon steels and alloy steels where a "mirror-like" surface finish is required without the need for additional grinding.
MO Geometry Precision
The MO chipbreaker on a round insert offers a stable and secure cutting edge for copy turning. In cermet grades, this geometry is honed to perfection to handle cutting resistance while maintaining chip control. This indexable turning solution allows for smooth transition across varied profiles, ensuring consistent chip thickness even as the lead angle changes.
Recommended Cutting Parameters
Optimized for Steel Finishing (P05 - P20)
| Material Group | Cutting Speed ($v_c$) | Feed per Rev ($f$) |
|---|---|---|
| Low Carbon Steel | 200 - 450 m/min | 0.05 - 0.20 mm/rev |
| Alloy Steel (SCM440) | 150 - 350 m/min | 0.05 - 0.15 mm/rev |
| Ductile Cast Iron | 150 - 300 m/min | 0.10 - 0.25 mm/rev |
HOLDER COMPATIBILITY
For maximum precision, mount the RCMT0803MO on Mitsubishi SRDC style tool holders.
View SRDC Holders →Metric vs. Inch Cross-Reference
| Feature | Metric Designation | Inch Designation (Approx.) |
|---|---|---|
| Insert Diameter | 08 (8.0 mm) | 2.5 (5/16" or 0.315") |
| Thickness | 03 (3.18 mm) | 3 (1/8" or 0.125") |
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.