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

$125.89 USD

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Description

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

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

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.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

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.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

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.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.