Mitsubishi TNMG220408 NX2525 | High-Finish Cermet Insert
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TNMG220408 NX2525
Mitsubishi Materials | Large-Scale High-Speed Cermet Expert
The Mitsubishi TNMG220408 NX2525 is a heavy-duty cermet turning insert engineered for high-precision finishing on larger components. Utilizing the advanced NX2525 titanium-based cermet grade, this insert provides exceptional chemical stability and resistance to built-up edge (BUE). As a long-tail precision tool, it is the premier choice for achieving a mirror-like surface finish on carbon and alloy steels in large CNC lathes.
Mirror Surface Quality | Large Size 22 Edge | High Oxidation Resistance
Code Identification Breakdown
Triangular
0° Relief
Tolerance
Double Sided
22mm Edge
4.76mm Thick
0.8mm Radius
Global Standard Reference
| Technical Feature | ISO (Metric) Model | ANSI (Inch) Equivalent |
|---|---|---|
| Model ID | TNMG220408 | TNMG 432 |
| Inscribed Circle (IC) | 12.7 mm | 0.500" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
NX2525 Titanium Cermet
The NX2525 grade is a titanium-based cermet (ceramic-metal composite) that offers high chemical stability at high temperatures. Unlike standard tungsten carbide, this indexable turning insert does not easily weld to steel, preventing built-up edge and ensuring high-precision surface integrity and brightness.
TNMG Size 22 Geometry
The Size 22 (43x) platform is designed for larger tool holders, providing a massive heat sink and high structural rigidity. This allows for stable turning of larger diameters where vibration could otherwise ruin the surface finish. With 6 cutting edges, it offers superior cost-per-edge.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Carbon Steel (S45C) | 180 - 380 m/min | 0.10 - 0.35 mm/rev | 0.3 - 2.5 mm |
| Alloy Steel (SCM) | 120 - 300 m/min | 0.10 - 0.30 mm/rev | 0.3 - 2.0 mm |
TOOL HOLDER COMPATIBILITY
Compatible with high-rigidity MTJNR/L or WTJNR/L tool holders (Size 22).
View Size 22 Tool Holders →
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.