Mitsubishi NNMU200608ZEN-MK MC5020 Milling Insert | MMC Japan
Price shown is a starting point. Contact us for a precise quote based on your requirements.
NNMU200608ZEN-MK MC5020
Mitsubishi Materials | Double-Sided High-Feed Milling Insert
The Mitsubishi NNMU200608ZEN-MK MC5020 is a specialized face milling insert designed for high-efficiency machining of cast iron. Utilizing a double-sided hexagonal geometry with multiple cutting edges, this insert maximizes tool life and cost-per-edge. The MK chipbreaker is specifically optimized for medium-duty cast iron milling, while the MC5020 CVD coating provides the thermal stability required for high-speed dry machining.
Technical Specifications
| ISO Designation | NNMU200608ZEN-MK |
|---|---|
| Grade / Coating | MC5020 (CVD Alumina + TiCN) |
| Nose Radius | 0.8 mm (0.0315") |
| Chipbreaker Style | -MK (Medium Cutting for Cast Iron) |
| Primary Material | Gray Cast Iron (GG), Ductile Iron (GGG) |
MC5020 Grade Technology
The MC5020 grade features a thick Alumina ($Al_2O_3$) layer and a specialized TiCN coating. This combination is specifically engineered for indexable milling of cast iron, offering excellent crater wear resistance and thermal protection during continuous high-speed runs.
-MK Chipbreaker Logic
The -MK chipbreaker provides a stable cutting edge that resists the abrasive nature of cast iron. It reduces cutting forces and manages chip formation to prevent edge chipping, ensuring a superior surface finish on large face-milling components.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) (m/min) | Feed per Tooth ($f_z$) |
|---|---|---|
| Gray Cast Iron (K) | 150 - 350 | 0.10 - 0.35 mm/t |
| Ductile Cast Iron (K) | 120 - 250 | 0.10 - 0.30 mm/t |
WBC MILLING SYSTEM COMPATIBILITY
This NNMU insert is designed for Mitsubishi Materials WBC Face Mills. Ensure rigid clamping for maximum performance.
Shop Compatible Face Mills →Metric vs. Inch Cross-Reference
| Feature | Metric Designation | Inch Designation (Equivalent) |
|---|---|---|
| Insert Size | 2006 | NNMU 6.35-ZEN |
| Nose Radius | 0.8 mm | 0.0315 inch (1/32") |
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.