TaeguTec CNMG120404MT TT5080 | Heavy-Duty Cast Iron Turning Insert
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TaeguTec CNMG120404MT TT5080
The Impact Specialist: High-Toughness CVD Grade for Challenging Cast Iron Machining
Product Overview
"Which insert grade is most reliable for turning abrasive cast iron when the cut is interrupted or the casting surface is uneven?"
The TaeguTec CNMG120404MT TT5080 is an 80° rhombic turning insert engineered for high-reliability performance in ISO K (Cast Iron). While many inserts fail during heavy impact, the TT5080 CVD grade utilizes a specialized tough substrate and advanced thick alumina coating to resist thermal cracking and mechanical shock. The MT chipbreaker features a reinforced geometry that provides excellent chip control across a wide range of feed rates, ensuring stability even in the most demanding CNC turning environments.
Key Features
A uniquely tough carbide substrate designed to absorb mechanical shock during interrupted or heavy-duty cutting.
Reinforced cutting edge prevents micro-chipping while maintaining efficient chip breakability in gray and ductile iron.
Thick thermal barrier coating protects the insert from the high abrasive wear typical of iron machining.
Technical Specifications
ISO Code Breakdown: CNMG120404MT
80° Rhom
0° Relief
Tolerance
Fixing
12.7mm L
4.76mm S
0.4mm RE
Med-Tough
| Unit System | Designation | I.C. (Inscribed Circle) | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120404MT | 12.7 mm | 0.4 mm |
| Imperial (ANSI) | CNMG431MT | 0.500" | 0.016" |
Recommended Cutting Parameters (ISO K)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Iron (GG25) | 150 - 350 m/min | 0.12 - 0.35 mm/rev |
| Ductile Iron (GGG40) | 120 - 300 m/min | 0.10 - 0.30 mm/rev |
Compatible Toolholders
This insert is a standard fit for all DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 toolholders.
Product Applications
- Interrupted cutting of cast iron housings and pump bodies.
- Turning of abrasive gray iron castings with rough surface skins.
- Machining of ductile iron components where tool-edge toughness is the priority.
- Stable machining in older CNC equipment or less rigid setups.
TaeguTec Grade Comparison (Cast Iron)
| Grade Name | Core Advantage | Best Use |
|---|---|---|
| TT5080 (CVD) | Maximum Toughness | Difficult Cuts: Interrupted or rough surfaces. |
| TT5100 (CVD) | Wear Resistance | Continuous: High-speed finishing on iron. |
Why Choose TaeguTec?
A premier global brand under the IMC Group, TaeguTec is a leader in high-performance industrial tooling. The TT5080 grade is specifically developed for the most challenging cast iron machining tasks, where edge stability and shock resistance are paramount. By choosing TaeguTec, you invest in industrial-grade reliability that reduces machine downtime, prevents unexpected tool failure, and optimizes your cost-per-part in a professional CNC environment.
Verified Global Feedback
"Zero Chipping on GGG40"
We were losing inserts to chipping on our ductile iron parts. Switched to TT5080 and the tool life became predictable again. Best toughness in the market.
— Cast Components Ltd (USA)"Handles Interrupted Cuts Easily"
Outstanding for our pump housing production. The cut is interrupted by bolt holes, but the TT5080 edge doesn't budge. Very stable.
— Maschinenbau Kraft (Germany)"Steady Iron Machining"
Good tool life on rough gray iron castings. The 0.4mm radius is perfect for finishing parts after the initial roughing cycles.
— Industrial Tech (Japan)Frequently Asked Questions
1. Is TT5080 suitable for high-speed finishing?
TT5080 is optimized for toughness. For the highest speeds in continuous finishing, we recommend TaeguTec's TT5100 grade.
2. Can I use this on Steel (ISO P)?
While it can turn steel, it is optimized for the abrasive characteristics of Cast Iron. For steel turning, our TT9225 series is the standard choice.
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.