ZCC.CT CNMG120408-PM YBD252 Carbide Turning Inserts for Cast Iron
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ZCC.CT CNMG120408-PM YBD252: The Ultimate Choice for Cast Iron Machining
Product Overview
The ZCC.CT CNMG120408-PM YBD252 is an industrial-strength turning insert engineered for the K-group (Cast Iron). The YBD252 grade features a specialized thick CVD coating (Al2O3 + TiCN) over a highly tough substrate, specifically designed to withstand the mechanical shocks of interrupted cuts. The PM (Medium-Duty) chipbreaker is optimized for stable chip control, ensuring that even abrasive cast iron materials are processed with precision and reduced edge wear.
Key Features
- Shock-Resistant YBD252 Grade: Specifically formulated for interrupted cutting and unstable machining conditions in cast iron.
- PM Geometry: A reinforced cutting edge that balances sharpness with strength for medium turning operations.
- Advanced CVD Coating: Thick Al2O3 layer provides an excellent thermal barrier, extending tool life in high-speed applications.
- Excellent Edge Security: Optimized for gray cast iron (GG) and ductile/nodular iron (GGG).
Technical Specifications
ISO Designation Decoding
80° Rhombic
0° Relief
Tolerance
With Hole
12.9mm Edge
4.76mm Thick
0.8mm Rad
Med Chip
| Standard | Model Designation | I.C. (Size) |
|---|---|---|
| Metric (ISO) | CNMG120408-PM | 12.7 mm |
| Imperial (ANSI) | CNMG 432-PM | 1/2" |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc) m/min | Feed Rate (fn) mm/r |
|---|---|---|
| Gray Cast Iron (K1) | 200 - 400 | 0.15 - 0.50 |
| Ductile Iron (K2) | 150 - 300 | 0.15 - 0.45 |
Directly Compatible Tool Holders:
Applications & Compatibility
Engineered for high-efficiency turning in high-demand industrial sectors:
ZCC.CT Grade Comparison (Cast Iron)
| Grade | Condition | Primary Advantage |
|---|---|---|
| YBD102 | Finishing / High Speed | Extreme Wear Resistance |
| YBD152 | General Purpose | Versatility in K-Materials |
| YBD252 | Roughing / Interrupted | Maximum Impact Toughness |
Why Choose ZCC.CT Tools?
As a global leader in cemented carbide production, ZCC.CT delivers "Tier-1" performance at a significantly more competitive B2B price point. Our YBD series is used by Tier-1 automotive suppliers for its consistency and reliability.
"Reliable on GGG40"
"We used these for machining ductile iron hubs with heavy interruptions. The YBD252 grade didn't chip even once. Impressive."
— Markus T., Germany
"Great for Brake Discs"
"The PM chipbreaker handles the abrasive nature of cast iron perfectly. Tool life is on par with premium Swedish brands."
— Robert S., USA
"Cost-Efficient"
"Utilizziamo ZCC.CT da anni per la ghisa. Il rapporto qualità-prezzo è imbattibile per la produzione in serie."
— Luca M., Italy
Frequently Asked Questions
Q: Can YBD252 handle dry machining in cast iron?
A: Yes, the CVD Al2O3 coating is specifically designed for high-temperature resistance, making it suitable for both dry and wet machining of cast iron.
Q: What is the difference between CNMG120404 and CNMG120408?
A: The 08 suffix indicates a 0.8mm nose radius, which provides a stronger edge and better surface finish at higher feed rates than the 0.4mm (04) radius.
Q: Is this insert compatible with steel?
A: While it can cut steel, the YBD252 grade is optimized for cast iron. For steel, we recommend the YBC series for better results.
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.