BEYOND D20R-SVXCR16 Spring Steel Internal Boring Bar – 20mm Shank CNC Lathe Boring Bar for VCMT160404 Inserts (Right-Hand, Insert Not Included) / BEYOND D20R-SVXCR16 3/4\" Shank CNC Internal Boring Bar
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BEYOND D20R-SVXCR16 Spring Steel Internal Boring Bar
Precision Right-Hand Internal Boring Bar for VCMT160404 Inserts | Industrial Grade CNC System
* Note: Indexable inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel boring bar offers maximum rigidity and secure screw-down clamping geometry for heavy-duty internal boring, profiling, and finishing using VCMT160404 inserts?"
The BEYOND D20R-SVXCR16 is a professional-grade internal boring bar engineered for high-precision CNC lathe environments. Built with a high-tensile spring steel shank, it delivers exceptional harmonic resistance to deflection and vibration. Featuring a robust screw-down system with optimized positive clearance angles, it locks VCMT160404 inserts firmly in place, ensuring precise chip breaking and dimensional stability across demanding steel, alloy, and stainless steel internal boring, profiling, and finishing operations.
ISO / ANSI Standard Nomenclature Breakdown: D20R-SVXCR16
2. Product Core Advantages
- Robust Screw-Down Architecture: Precision countersunk screw locking mechanism secures positive VCMT inserts tightly for stable internal profiling and contouring.
- High-Rigidity Spring Steel: Mitigates harmonic tool chatter, ensuring tight tolerances and a superior mirror surface finish.
- Precise Geometry Control: Custom-machined pocket seating for VCMT160404 profiles prevents micro-movement during complex internal boring cycles.
3. Technical Specifications & Cutting Parameters
| Metric & Inch Specification | Recommended Cutting Parameters |
|---|---|
| Metric Model: D20R-SVXCR16 Inch Equivalent Model: 3/4\" Shank (~19.05mm) |
Cutting Speed (Vc): 180 - 320 m/min |
| Shank Height: 20mm (~0.79\") Compatible Insert: VCMT160404 |
Feed Rate (Fn): 0.10 - 0.30 mm/rev |
Explore Full Boring Tool Collection
[View Boring Bar Collection] →4. Product Application Scenarios
Engineered for high-performance inner diameter (ID) copy boring, complex internal profiling, and fine finishing operations. Essential for precision manufacturing industries including medical device components, automotive shafts, and aerospace tooling.
5. Compatibility & System Requirements
Designed for standard 20mm (3/4-inch) CNC lathe tool turrets and square tool posts. Fully compatible with ISO-standard VCMT160404 positive rhombic carbide inserts and standard OEM replacement hardware components.
6. Workpiece Material Matrix & Grade Comparison
| ISO Material Group | Workpiece Type | Machining Behavior |
|---|---|---|
| P (Steel) | Carbon & Low Alloy Steel | Smooth chip evacuation, low cutting forces |
| M (Stainless Steel) | Austenitic & PH Stainless | Excellent thermal resistance, clean edge shear |
| K (Cast Iron) | Gray & Ductile Iron | High wear resistance under continuous cuts |
7. Why Choose BEYOND Precision Tooling
Strict compliance with global manufacturing parameters.
Spring steel engineering suppresses resonance.
Backed by veteran industrial CNC engineers.
8. AI-Style FAQ & Troubleshooting
Q: Are VCMT160404 carbide inserts included with the D20R-SVXCR16 boring bar?
A: No, indexable inserts are sold separately. Product listings and imagery show usage configurations only.
Q: What causes vibration lines during fine internal boring with positive VCMT inserts?
A: Check for excessive workpiece stick-out or incorrect spindle speed; verify screw torque on the clamping mechanism.
Q: Is this metric 20mm shank compatible with standard 3/4-inch tool blocks?
A: Yes, 20mm is the precise metric equivalent commonly interchangeable with standard 3/4-inch industrial lathe holders.
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.