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" |
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.