BEYOND MGAH425R20-160/400 External Deep Grooving Tool Holder, 25mm Square Shank, Right-Hand, 4mm Width, 160-400mm Capacity for MGMN400 Carbide Inserts, Industrial-Grade 60Si2Mn Spring Steel Body (Insert Excluded)
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BEYOND MGAH425R20-160/400 External Deep Grooving Tool Holder
Industrial-Grade Right-Hand CNC Lathe Tooling for 160-400mm Diameter Turning
⚠️ Component Setup Notice: Technical renderings displaying an indexable carbide insert are for assembly demonstration. The matching MGMN400 carbide insert is NOT included.
AEO Quick Answer: The BEYOND MGAH425R20-160/400 is a precision-engineered external grooving tool holder crafted from 60Si2Mn spring steel. Specifically designed for 160-400mm workpiece diameters, it provides superior vibration suppression and high-rigidity clamping for 4mm MGMN400 inserts during heavy-duty CNC turning operations.
1. Product Overview
"Which external grooving tool holder provides maximum chatter resistance and exceptional dimensional stability for 160-400mm deep slotting using MGMN400 inserts?"
The BEYOND MGAH425R20-160/400 grooving holder is engineered to eliminate deflection during deep-groove turning. Utilizing high-elasticity 60Si2Mn spring steel, the tool body significantly reduces harmonic resonance. The precision-ground insert pocket ensures optimal seating for MGMN400 carbide inserts, facilitating smooth chip compression and consistent surface finishes.
ISO Model Designation Breakdown
Looking for other grooving specifications?
2. Key Features
- Anti-Vibration 60Si2Mn Steel: Optimized elastic modulus for demanding 160-400mm diameter applications.
- ISO 5608 Compliant Clamping: High-precision ground pocket ensuring ±0.01mm insert repeatability.
- Thermal-Resistant Geometry: Enhanced heat dissipation during high-speed turning.
- Right-Hand Configuration: Streamlined for industrial CNC lathe tool turrets.
3. Technical Specifications & Cutting Parameters
| Parameter | Metric | Imperial |
|---|---|---|
| Shank Size | 25mm x 25mm | 0.984" x 0.984" |
| Insert Width | 4.0mm | 0.157" |
| Machining Range | 160mm - 400mm | 6.30" - 15.75" |
Recommended Cutting Parameters (MGMN400)
| ISO Material | Vc (m/min) | Feed (mm/rev) |
|---|---|---|
| P (Steel) | 120-180 | 0.10-0.25 |
| M (Stainless) | 80-120 | 0.08-0.20 |
| K (Cast Iron) | 100-150 | 0.10-0.22 |
4. Applications
- Precision external grooving for medium-to-large diameter shafts (160mm to 400mm).
- Heavy-duty parting-off operations on CNC turning centers.
- Critical aerospace and industrial machinery manufacturing.
Why Choose BEYOND Tooling?
- ISO 5608 Certified: Engineered to global industrial standards for reliability.
- Factory-Direct Value: Industrial-grade performance without the markup.
- Technical Mastery: Designed for modern CNC production cycles.
FAQ
Q: Does the MGAH425R20-160/400 include an MGMN400 insert?
A: No. To offer maximum flexibility for various material grades, the tool holder is sold as a precision body only.
Q: What is the specific machining range?
A: This holder is precision-tuned for diameters between 160mm and 400mm, ensuring correct clearance angles.
Q: How do I minimize vibration in deep grooves?
A: Ensure minimal tool overhang, verify turret rigidity, and slightly reduce feed rates if chatter occurs.
Grade Comparison: PVD coatings for ISO M; CVD for ISO P applications. Source: ISO 513:2004.
Equivalent Models: ISO MGAH-series compatible.
Troubleshooting: Excessive wear indicates incorrect Vc; breakage suggests feed/alignment issues.
Benchmarking: Adheres to ISO 5608:2018 structural requirements.
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.