Mitsubishi JDMT140520ZDSR-JM VP30RT Milling Insert | MMC Japan
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JDMT140520ZDSR-JM VP30RT
Mitsubishi Materials | AJX Series Toughened Heavy-Duty Milling
The Mitsubishi JDMT140520ZDSR-JM VP30RT is a robust high-feed milling insert specifically designed for the AJX14 series cutters. When your machining environment involves heavy interrupted cuts, scale, or unstable workholding, the VP30RT tough grade is the professional choice. It offers superior fracture resistance compared to standard grades, making it ideal for the roughing of Stainless Steel, Carbon Steel, and Heat-Resistant Alloys under the most challenging CNC milling conditions.
Technical Specifications
| ISO Designation (Metric) | JDMT140520ZDSR-JM |
|---|---|
| ANSI Designation (Inch) | JDMT 544ZDSR-JM |
| Insert Size | 14 (For AJX 14 Type Cutters) |
| Corner Radius (RE) | 2.0 mm (.0787") |
| Grade / Coating | VP30RT (Miracle PVD Toughness Optimized) |
VP30RT "Tough" Coating
The VP30RT grade is engineered with a high-toughness substrate and specialized PVD coating. This combination is designed to absorb mechanical shock, making it far more resistant to chipping and fracture during interrupted milling of stainless steels or when encountering raw casting skins.
JM Chipbreaker Strategy
The JM (General Machining) chipbreaker on this JDMT14 series insert provides a strengthened cutting edge. It is optimized for high-feed metal removal, effectively managing chip thinning and reducing the load on the machine spindle during high-velocity table feeds.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 110 - 190 m/min | 1.2 - 2.8 mm/t |
| Stainless Steel (304/316) | 70 - 140 m/min | 1.0 - 2.2 mm/t |
AJX14 MILLING SYSTEM
Requires AJX 14 Type high-feed cutters (Face Mills or Shank Mills).
Shop AJX 14 Tool Holders →Metric vs. Inch Cross-Reference
| Feature | ISO: JDMT140520 | ANSI: JDMT 544 |
|---|---|---|
| Insert Length | 14.5 mm | .571" |
| Thickness | 5.56 mm | 7/32" |
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.