Mitsubishi JOMT080320ZZSR-JM VP30RT Milling Insert | MMC Japan
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JOMT080320ZZSR-JM VP30RT
Mitsubishi Materials | AJX08 Series Extreme Toughness Milling
The Mitsubishi JOMT080320ZZSR-JM VP30RT is the industry-standard high-feed milling insert for the most demanding machining conditions. Engineered for the AJX08 cutter series, this insert features the ultra-tough VP30RT Miracle PVD coating. It is specifically designed to handle interrupted cuts, rough surface skins, and unstable setups where other grades might chip. The JM (General Machining) chipbreaker balances a sharp cutting action with a reinforced edge for maximum reliability.
Technical Specifications
| ISO Designation (Metric) | JOMT080320ZZSR-JM |
|---|---|
| ANSI Designation (Inch) | JOMT 2.5(3)6-JM |
| Insert Size | 08 (AJX08 Series) |
| Corner Radius (RE) | 2.0 mm (.0787") |
| Grade / Coating | VP30RT (Miracle PVD on Tough Carbide) |
VP30RT Toughness Grade
The VP30RT grade utilizes a specialized high-toughness carbide substrate. The Miracle PVD coating provides excellent thermal stability. This grade is the first choice for heavy-duty roughing and milling through scale, as it resists the micro-chipping caused by thermal shock and heavy mechanical loads.
JM Chipbreaker Edge
The JM geometry is optimized for high feed metal removal. It is designed to reduce the "notching" effect at the depth-of-cut line. By thinning the chip across a wider edge, the JM breaker ensures that even in interrupted cutting steel, the tool maintains a constant, efficient cut without excessive vibration.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Alloy Steel / Tool Steel | 100 - 180 m/min | 0.6 - 1.4 mm/t |
| Stainless Steel (304/316) | 80 - 150 m/min | 0.5 - 1.0 mm/t |
AJX08 CUTTER COMPATIBILITY
Engineered specifically for AJX 08 Type face mills, end mills, and modular heads.
View Compatible Tool HoldersDimensions: Metric vs. Inch
| Parameter | Metric (ISO) | Inch (ANSI Equivalent) |
|---|---|---|
| Insert Length | 8.0 mm | 5/16" |
| Thickness | 3.4 mm | .134" |