Tungaloy TNGA160404 / TNGA160408 LX11 Ceramic Inserts
High-Speed SiAlON Ceramic | LX11 Grade for Cast Iron | Precision Japan Tooling
What is the best ceramic insert for high-velocity cast iron machining?
The Tungaloy TNGA160404 and TNGA160408 LX11 series represents the pinnacle of high-speed turning technology for gray and ductile cast iron. Unlike standard carbide, the LX11 SiAlON ceramic grade maintains extreme hardness at elevated temperatures, allowing for cutting speeds far beyond traditional limits. Whether you require the fine precision of a 0.4mm radius (04) or the edge strength of a 0.8mm radius (08), these negative triangular inserts provide the thermal stability needed for heavy-duty industrial applications. 100% Made in Japan, they are engineered to reduce cycle times and maximize throughput in high-volume production.
LX11 SiAlON Grade
A specialized ceramic with excellent fracture toughness and thermal shock resistance. Perfect for high-speed continuous or light interrupted cuts in Cast Iron (ISO K).
High Speed Velocity
Engineered to run at speeds up to 1000 m/min. This grade significantly reduces cycle times compared to coated carbide inserts in the same application.
Negative Geometry
The double-sided triangular design provides 6 usable cutting edges, offering exceptional cost-efficiency and a robust edge for roughing to finishing.
Decoding TNGA 160404/08 LX11 Specifications
T
Triangular
N
0° Relief
G
Precision
A
Top Hole
16
16mm L
04
4.76mm Thk
04/08
Radius
LX11
Ceramic
3. Technical Data: Metric vs. Imperial Units
| Parameter |
Metric (ISO) |
Imperial (ANSI) |
| Designation (04) |
TNGA160404 LX11 |
TNGA 331 LX11 |
| Designation (08) |
TNGA160408 LX11 |
TNGA 332 LX11 |
| Inscribed Circle (IC) |
9.525 mm |
3/8" |
| Thickness (S) |
4.76 mm |
3/16" |
Ceramic Cutting Recommendations (ISO K - Cast Iron)
-
Cutting Speed (Vc): 400 - 1000 m/min (High-speed ceramic zone)
-
Feed Rate (f): 0.10 - 0.40 mm/rev
-
Depth of Cut (ap): 0.2 - 2.5 mm
*Note: Ceramic inserts thrive on heat. Dry machining is often recommended for gray cast iron to avoid thermal cracking.*
4. Primary Applications
- High-speed finishing of automotive brake discs.
- Turning gray cast iron and ductile iron engine components.
- Machining large-diameter cast iron rollers.
- Ideal for mass production requiring long tool life.
5. Tool Compatibility
Fits all standard TNGA 1604 / TNGA 33x holders. Optimized for WTJNR/L or DTGNR/L heavy-duty external turning holders.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Japan Original
Technical Expert
B2B Industrial Solutions
Bulk Stock
Fast Global Logistics
Premium Grade
Advanced Ceramic Tech
Global Machinist Reviews
⭐⭐⭐⭐⭐ "Incredible Speed" - Dieter S., Germany
"Switched to LX11 for brake disc turning. We increased our cutting speed from 300 to 800 m/min. Total game changer for throughput."
⭐⭐⭐⭐⭐ "Great Heat Resistance" - Robert B., USA
"Running dry on gray iron, the edge holds up perfectly. The 0.8 radius (160408) is very robust for roughing."
⭐⭐⭐⭐ "Smooth Finish" - Akira H., Japan
"Excellent precision on ductile iron. The TNGA160404 provides a very clean surface finish even at high velocities."
⭐⭐⭐⭐⭐ "B2B Support" - Marco G., Italy
"Beyond OYYU team provided the exact cutting parameters for our engine block project. Original Tungaloy quality."
⭐⭐⭐⭐⭐ "Reliable Grade" - Vikram D., India
"LX11 is much tougher than other ceramics we've tried. Fewer edge chippings during interrupted cuts on cast parts."
8. FAQ - Ceramic Machining
Q: Should I use coolant with LX11 ceramic?
A: For gray cast iron, dry machining is typically better to prevent thermal shock. If coolant is necessary, ensure it is high-volume and continuous.
Q: What is the difference between TNGA160404 and 160408?
A: The '04' has a 0.4mm radius for finer finishing and lower cutting pressure, while the '08' has a 0.8mm radius for better edge strength and faster feeds.
Tech Tip: Ceramic vs. Carbide
While carbide loses its hardness at high temperatures, **LX11 Ceramic** actually becomes more effective. Use this grade for high-velocity cast iron turning to maximize your CNC's output. **Tungaloy Japan** - Leading the way in ceramic innovation.
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