Mitsubishi JDMT120420ZDSR-JM VP30RT Milling Insert | MMC Japan
Price shown is a starting point. Contact us for a precise quote based on your requirements.
JDMT120420ZDSR-JM VP30RT
Mitsubishi Materials | AJX Series Toughened High-Feed Milling
The Mitsubishi JDMT120420ZDSR-JM VP30RT is a specialized high-feed milling insert designed for the AJX12 series cutters. Engineered for the most demanding conditions, the VP30RT grade is the industry's answer to heavy interrupted cuts and unstable setups. While VP15TF focuses on wear resistance, VP30RT prioritizes impact toughness, making it the primary choice for roughing Stainless Steel, Alloy Steels, and heat-resistant superalloys under tough conditions.
Technical Specifications
| ISO Designation (Metric) | JDMT120420ZDSR-JM |
|---|---|
| ANSI Designation (Inch) | JDMT 434ZDSR-JM |
| Insert Size | 12 (For AJX 12 Type Cutters) |
| Corner Radius (RE) | 2.0 mm (.0787") |
| Grade / Coating | VP30RT (Miracle PVD Coated Tough Grade) |
VP30RT Tough Grade
The VP30RT grade is optimized for maximum fracture resistance. By using a high-toughness carbide substrate and the Miracle PVD coating, it significantly reduces the risk of sudden edge failure during interrupted milling or when machining through hard spots and scale on raw castings.
JM Chipbreaker Advantage
The JM (General Machining) chipbreaker on this JDMT insert features a strengthened edge. It is designed to sustain high feed rates while effectively controlling chips, preventing the "hammering" effect that can lead to vibration in high-feed milling operations.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Carbon Steel / Alloy Steel | 120 - 200 m/min | 1.0 - 2.2 mm/t |
| Stainless Steel (304/316) | 80 - 150 m/min | 0.8 - 1.5 mm/t |
AJX12 SYSTEM COMPATIBILITY
This insert fits all AJX 12 Type high-feed cutters, including arbor and shank types.
Shop AJX 12 Tool Holders →Metric vs. Inch Cross-Reference
| Feature | ISO: JDMT120420 | ANSI: JDMT 434 |
|---|---|---|
| Insert Length | 12.7 mm | 1/2" |
| Thickness | 4.76 mm | 3/16" |
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.