Mitsubishi JDMT140520ZDSR-JM FH7020 Milling Insert | MMC Japan
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JDMT140520ZDSR-JM FH7020
Mitsubishi Materials | AJX Series Heavy-Duty Cast Iron Specialist
The Mitsubishi JDMT140520ZDSR-JM FH7020 is a heavy-duty high-feed milling insert specifically engineered for high-speed machining of Cast Iron (Gray & Ductile). Designed for the AJX14 series cutters, this insert leverages the FH7020 PVD coated grade to provide superior abrasion resistance in brittle and abrasive materials. The JM chipbreaker (General Machining) offers a strengthened cutting edge, ensuring stable metal removal even at aggressive feed rates common in high-efficiency CNC milling.
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 | FH7020 (PVD Coated Cast Iron Specialist) |
FH7020 Grade Efficiency
The FH7020 grade is a specialized PVD-coated carbide optimized for flank wear resistance. In cast iron milling, the abrasive nature of the material often leads to rapid tool wear; FH7020 uses a hard, heat-resistant layer to maintain edge sharpness, reducing machine downtime and improving surface finish consistency.
JM Chipbreaker Advantage
The JM (General Machining) geometry features a reinforced cutting edge. This design prevents chipping during the heavy impact of high-feed milling. It effectively thins the chip for smoother evacuation, reducing the thermal load transferred to the tool and workpiece.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed Per Tooth ($f_z$) |
|---|---|---|
| Gray Cast Iron (FC300) | 160 - 320 m/min | 1.2 - 3.0 mm/t |
| Ductile Cast Iron (FCD) | 130 - 240 m/min | 1.0 - 2.5 mm/t |
AJX14 SYSTEM COMPATIBILITY
This insert is designed for AJX 14 Type high-feed face mills and indexable end 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.