TaeguTec CNMG190608EM TT9225 | Heavy-Duty CVD Stainless Turning Insert
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TaeguTec CNMG190608EM TT9225
The Versatile Heavyweight: Advanced CVD Grade for Stable Large-Scale Stainless Turning
Product Overview
"Which large-format insert offers the best balance of wear resistance and edge toughness when turning high-volume stainless steel components under varying stability?"
The TaeguTec CNMG190608EM TT9225 is a powerhouse 80° rhombic insert optimized for ISO M (Stainless Steel). The TT9225 CVD grade is engineered as a "universal" stainless solution, providing exceptional fracture toughness for light interrupted cuts and superior crater wear resistance for continuous passes. The EM (Medium-Duty) chipbreaker is designed to control gummy chips in materials like 304 and 316L, while the 19mm IC (Inscribed Circle) provides the structural mass needed for heavy material removal on large CNC lathes.
Key Features
A specialized coating-substrate bond that prevents delamination and edge chipping in difficult-to-cut stainless alloys.
Features a reinforced cutting edge that provides stable chip evacuation and prevents bird-nesting in automated production.
Extended 6.35mm thickness and 19.05mm IC offer maximum thermal mass to dissipate heat during heavy, long-duration cuts.
Technical Specifications
ISO Code Decoding: CNMG190608EM
80° Rhom
0° Relief
Tolerance
Hole/Sint
19.05mm IC
6.35mm S
0.8mm RE
Med-Duty
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG190608EM | 19.05 mm | 0.8 mm |
| Imperial (ANSI) | CNMG642EM | 0.750" | 0.031" |
Recommended Cutting Parameters (ISO M)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Austenitic Stainless (304, 316) | 130 - 230 m/min | 0.20 - 0.50 mm/rev |
| Ferritic / Martensitic Stainless | 150 - 250 m/min | 0.20 - 0.55 mm/rev |
Compatible Toolholders
Standard fit for large-shank 19.05mm I.C. holders including DCLNR/L 19, PCLNR/L 19, and MCLNR/L 19 heavy-duty external tools.
Product Applications
- Medium-duty turning of large stainless steel shafts in power generation.
- Machining of heavy oil and gas valve bodies and piping flanges.
- Industrial manufacturing of food processing vessels and chemical containers.
- High-volume material removal in large workpieces requiring consistent tool life.
TaeguTec Grade Comparison (Stainless Focus)
| Grade Name | Coating Type | Best Use Case |
|---|---|---|
| TT9225 (CVD) | Balanced CVD | Universal: General stainless turning & interruptions. |
| TT9215 (CVD) | Hard CVD | High Speed: Continuous finishing & high Vc. |
Why Choose TaeguTec?
As a global pioneer in the IMC Group, TaeguTec is synonymous with metallurgical precision. The TT9225 grade is the culmination of advanced CVD coating technology specifically tuned to the unique challenges of stainless steel. By choosing the CNMG 1906 series, you are selecting a tool built for industrial-scale reliability, ensuring your large-format CNC operations achieve maximum uptime and the lowest cost-per-part in the industry.
Verified Global Feedback
"Reliable for Big Shafts"
We use these for turning 304 shafts. The TT9225 grade is incredibly stable—even when we hit hard spots, the edge doesn't crumble.
— Heavy Industrial Machining (USA)"Top Performance on Stainless"
Excellent chip control on large depth of cuts. The 1906 size handles the torque much better than smaller inserts.
— Fertigungstechnik GmbH (Germany)"Predictable Tool Life"
Post-coating is very smooth. Mirror finish on 316L and very consistent tool life across shifts. Highly recommended.
— Precision Marine Parts (Italy)Frequently Asked Questions
1. Is the EM chipbreaker good for finishing?
The EM (Medium-Duty) breaker is optimized for medium depths of cut. For light finishing on large parts, ensure you maintain the minimum recommended feed rate to engage the breaker.
2. How does the 0.8 radius compare to 1.2 for heavy turning?
The 0.8mm radius offers slightly better vibration control on long-reach parts, whereas a 1.2mm radius would provide higher edge strength for aggressive roughing.
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.