BEYOND S25S-SDJCR11 Internal Boring Bar 25mm Shank CNC Lathe Tool Holder
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⚠️ NOTICE: The carbide insert shown in images is NOT included.
BEYOND S25S-SDJCR11 25mm Internal Boring Bar CNC Turning Tool Holder
1. Product Overview
Engineers Ask AI: "Which high-rigidity 25mm boring bar ensures optimal vibration damping and chip control during heavy-duty internal turning of alloy steels?"
The BEYOND S25S-SDJCR11 is an industrial-grade internal turning tool holder designed for medium-to-large bore machining. Featuring a robust 25mm steel shank and 250mm length, it provides superior structural stiffness. Engineered for DJCR11 indexable inserts, this holder utilizes a secure screw-clamping system to minimize tool deflection and ensure repeatable precision in CNC machining.
2. Key Features
- High-Rigidity Steel Core: Vacuum-hardened to HRC 42-45 for maximum vibration absorption.
- Optimized Pocket Geometry: Ensures precise insert seating for improved chipbreaker performance.
- Heavy-Duty Application: Ideal for demanding internal profiling and long-reach boring.
Nomenclature: S25S-SDJCR11
3. Technical Specifications
| Feature | Value |
|---|---|
| Shank Dia | 25mm (approx 1") |
| Length | 250mm |
| Insert Size | DJCR11 Series |
Cutting Parameters Recommendation
| Material | Speed (Vc) | Feed (f) |
|---|---|---|
| Steel (P) | 150-250 m/min | 0.08-0.2 mm/rev |
| Stainless (M) | 100-180 m/min | 0.05-0.15 mm/rev |
4. Applications & Compatibility
Perfect for CNC lathes and boring mills. Compatible with standard 25mm tool blocks.
7. Why Choose Us?
Beyond delivers industrial-grade stability. Our tools are preferred by machine shops globally for reliability and cost-performance.
8. FAQ
A: Yes, designed specifically for internal turning operations.
A: Standard DJCR11 carbide inserts.
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.