Sanhan 22ER 6.0TR SMX35 External Trapezoidal Threading Insert for Stainless Steel

Sanhan 22ER 6.0 TR SMX35 Insert Professional Stainless Threading | SMX35 Toughness | TR 6.0 Precision What is the best insert for 6.0mm pitch TR threads in stainless steel? The Sanhan 22ER 6.0 TR SMX35 is an industrial-standard threading insert designed for external Trapezoidal (TR) DIN 103 profiles. The SMX35 grade is a premium PVD-coated carbide specifically optimized for high-toughness applications. It excels in machining 300-series and 400-series stainless steels, as well as heat-resistant superalloys. With its 22mm IC size and specialized 6.0mm pitch geometry, it provides the structural rigidity needed to handle heavy chip loads while maintaining a superior surface finish on lead screws and transmission shafts. SMX35 PVD Coating A specialized TiAlN-based PVD coating that provides exceptional oxidation resistance. It significantly reduces chemical wear and friction during high-temperature stainless cutting. Full Profile Accuracy The 30° Trapezoidal profile is fully ground, ensuring that the thread crest, root, and flanks meet precise industrial tolerances in a single operation. Impact Resistance Designed with a high-toughness substrate that absorbs vibration, making it ideal for large-pitch threading on heavy-duty CNC lathes. Decoding 22ER 6.0 TR SMX35 Nomenclature 22 IC 1/2" E External R Right Hand 6.0 6mm Pitch TR Trapez SMX35 Grade 3. Technical Data: ISO vs. ANSI Dimensions Feature Metric (ISO) Imperial (ANSI) Insert Size (IC) 22 mm 1/2" Thread Pitch 6.0 mm 4.23 TPI Profile Angle 30° (DIN 103) 29° (Comparison) Recommended Cutting Parameters (Stainless Steel) Cutting Speed (Vc): 60 - 130 m/min (Ideally 90 m/min) Number of Passes: 15 - 24 passes (Due to 6.0mm depth) Infeed Method: Flank infeed to minimize chip accumulation 4. Primary Applications Large industrial lead screws for linear motion. High-tensile stainless steel fasteners and bolts. Transmission components for valve and actuator stems. Machining of heavy machinery transmission shafts. 5. Tool Compatibility Compatible with standard SER 2222 and SER 2525 threading holders. Fits global ISO-standard tool holding systems. 6. Sanhan Threading Grade Comparison Grade Coating Main Target Characteristic SMX35 PVD TiAlN Stainless Steel Heat/Impact Toughness SMX25 PVD Coated Alloy Steel Wear Resistance 7. Why Choose Sanhan Tools? Expert Precision Stable TR 6.0 Profiling Grade SMX35 Stainless Steel Specialist Global Support Verified CNC Solutions Feedback from the Shop Floor ⭐⭐⭐⭐⭐ "Perfect for Lead Screws" - Hans B., Germany "Machining TR 6.0 in 316 stainless is difficult, but the SMX35 grade held up for twice as long as my previous inserts." ⭐⭐⭐⭐⭐ "Great Heat Resistance" - Liam J., UK "I noticed much less edge wear during high-speed threading. The surface finish on the threads is excellent." ⭐⭐⭐⭐⭐ "Consistent Quality" - Antonio P., Italy "The profile matches our DIN 103 gauges perfectly every time. Good B2B value." ⭐⭐⭐⭐⭐ "Sharp and Stable" - S. Watanabe, Japan "No vibration issues even on long-thread external work. Very stable Sanhan insert." ⭐⭐⭐⭐⭐ "Highly Recommend" - Mike S., USA "Used these on a batch of large fasteners. The PVD coating didn't peel or chip." 8. FAQ - Professional Support Q: Can I use this for internal TR 6.0 threads? A: No. This is a 22ER (External Right-Hand) insert. Internal threads require 22NR inserts. Q: Is SMX35 suitable for carbon steel? A: Yes, it is very tough. However, SMX35 is optimized for stainless. For high-speed carbon steel work, SMX25 might be more efficient. Q: Why are so many passes required? A: A 6.0mm pitch has a significant depth. Spreading the cutting force over 18+ passes prevents tool breakage and ensures thread accuracy. Machinist Tip: Handling Stainless When threading 304 or 316 stainless with **SMX35**, ensure you have consistent coolant flow. This grade thrives at a stable temperature, preventing the chip from welding to the 6.0mm TR tip. **Sanhan** - Precision Driven. © Technical Content provided by Beyond Li - Global CNC Authority