Mitsubishi CCMW120408 UC5115 Flat-Top Carbide Insert for Cast Iron (10pcs)
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CCMW120408 UC5115
High-Volume Cast Iron Specialist | Reinforced Flat-Top | UC5115 CVD Grade
Maximum Rigidity for Abrasive Materials
UC5115 Grade (The K-Class Standard): Specifically engineered for Grey, Ductile, and Malleable Cast Iron. This CVD grade features a thick Alumina (Al2O3) layer that provides an industry-leading thermal barrier. It prevents heat from reaching the carbide substrate, allowing for continuous, high-speed turning in abrasive environments without the risk of plastic deformation.
CCMW Geometry (Non-Chipbreaker): Cast iron machining doesn't require chip management; it requires Edge Strength. The Flat-Top (CCMW) design offers the maximum possible carbide volume behind the cutting edge. This prevents the edge from chipping when encountering "hard spots" or sand inclusions common in raw castings.
0.8mm Heavy-Duty Radius: The 08 (1/32") radius is built for high feed rates. It provides a robust corner that dissipates heat more effectively than smaller radii, ensuring long tool life during heavy roughing and semi-finishing of large workpieces.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMW120408 | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CCMW432 | 1/2" | 3/16" | 0.0315" (1/32") |
Recommended Cutting Parameters
*CCMW12 series is designed for heavy-duty equipment. For the best tool life in Grey Iron, dry machining is recommended to avoid thermal micro-cracking.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Cast Iron (Class 30/40) | 150 - 450 m/min | 0.20 - 0.50 mm/r | 1.00 - 4.50 mm |
| Ductile Iron (60-40-18) | 120 - 350 m/min | 0.15 - 0.40 mm/r | 1.00 - 4.00 mm |
Compatible Tool Holders
Optimized for SCLCR/L 12 series External Holders and Large-Diameter Boring Bars:
Shop SCLCR 12 HoldersPro-Tip: When to choose the 1204 size?
Size 1204: Choose this when you are taking depths of cut over 3mm or when using large-scale machines that can handle the high cutting forces of a 1/2" insert.
Size 09T3: Stick to the smaller 09 size for light-duty lathes or finishing passes where high MRR is not the primary goal.
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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.