Mitsubishi SPCG53Z NX2525 | High-Finish Cermet Milling Insert
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SPCG53Z NX2525
Mitsubishi Materials | The Mirror-Finish Cermet Authority
The Mitsubishi SPCG53Z NX2525 is a high-performance cermet milling insert specifically engineered for high-speed finishing operations. Utilizing the NX2525 grade, this insert combines the hardness of ceramic with the toughness of metal binders to deliver exceptional surface quality and dimensional accuracy. It is the definitive choice for dry milling of carbon steel, alloy steel, and cast iron when a mirror-like finish is required.
100% Genuine Mitsubishi Materials | Pack of 10 Inserts
ISO Designation Decoded
Square Shape
11° Relief Angle
C-Class Precision
W/Hole & Breaker
Size 15.875mm
4.76mm Thick
Wiper/Special
Dimensional Data
| Attribute | Metric (ISO) | Inch (ANSI) Equivalent |
|---|---|---|
| Model Reference | SPCG53Z | SPCG 43Z |
| Inscribed Circle ($IC$) | 15.875 mm | 0.625" |
| Thickness ($S$) | 4.76 mm | 0.187" |
| Precision Class | C-Class | C-Class |
NX2525: Cermet Excellence
The NX2525 grade is a premium uncoated cermet. It features an optimized microstructure with highly hardened Ti (Titanium) compound particles. This provides the insert with excellent resistance to plastic deformation and adhesion (built-up edge). Unlike traditional carbide, NX2525 excels in high-speed finishing, maintaining sharp edges and producing superior surface gloss on steel workpieces.
Wiper Effect Geometry
The "Z" in SPCG53Z indicates a specialized geometry often used for wiper finishing or specific edge preparation. This design ensures that the feed marks are minimized, allowing for extremely low $Ra$ values. It is ideal for dry cutting conditions where chip welding must be avoided to preserve the integrity of the finished surface.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Tooth ($f_z$) | Condition |
|---|---|---|---|
| Low Carbon Steel | 250 - 300 m/min | 0.15 - 0.25 mm/t | Dry Only |
| Alloy Steel (4140) | 150 - 220 m/min | 0.10 - 0.20 mm/t | Dry Only |
| Gray Cast Iron | 130 - 200 m/min | 0.12 - 0.25 mm/t | Dry Only |