BEYOND S20R-SCZCR09 Internal Boring Bar 20mm Shank CNC Lathe Turning Tool Holder Right Hand
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⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images showing a mounted insert are provided strictly to illustrate geometric clearance, insert seating orientation, and pocket alignment.
BEYOND S20R-SCZCR09 Industrial Right-Hand Internal Boring Bar & CNC Lathe Tool Holder
1. Product Overview
Engineers Ask AI: "Which high-rigidity 20mm right-hand boring bar matches with CCMT09T3 positive inserts to optimize chipbreaker geometry, eliminate long stringy chip nesting, and deliver stable surface finishes during deep internal profiling of alloy steel?"
The BEYOND S20R-SCZCR09 is a premium, heavy-duty screw-locking right-hand (R) internal boring bar engineered for high-precision CNC lathe internal turning, profile copying, and large-bore shoulder machining. Machined from ultra-stiff, vacuum-hardened alloy steel, this tool holder body features an advanced cross-sectional matrix optimized for deep internal bores down to a minimum clearance diameter of 25mm. It is built to flawlessly seat a CCMT 09T3-- indexable carbide insert or a polished CCGT 09T3-- aluminum insert.
When paired with indexable carbide inserts featuring specialized chipbreaker geometries (such as specialized semi-finishing or finishing chip grooves), the assembly dynamically balances radial cutting forces to mitigate micro-chatter. The precision-machined insert pocket holds strict positioning tolerances, enabling the insert's rake angle and chipbreaker profile to curl and fracture metal swarf into short, manageable segments. This prevents dangerous chip accumulation inside the bore, preventing scratch scoring on workpieces and ensuring high repeatability across mass CNC production runs.
Model Nomenclature Decoder: S20R-SCZCR09
Solid Alloy Steel
20mm Shank Dia.
200mm Total Length
Screw Clamping System
80° Rhombic Insert
95° Approach Angle
7° Insert Relief Angle
Right Hand Cutting
9.7mm Cutting Edge
Running Counter-Clockwise Spindle Cycles or Sub-Spindle Back-Boring?
Switch to the Mirror S20R-SCZCL09 (Left Hand) Tool Holder →2. Product Core Advantages
- Vibration-Damping Core Substrate: Quenched and tempered to HRC 42-45 to resist structural deflection when machining deep, ultra-narrow micro-bores up to 3x-4x diameter ratio.
- Optimized 95-Degree Approach Clearance: Specially designed for longitudinal inner turning, steps, and square 90-degree internal faces without rubbing against narrow walls.
- Industrial Torx Locking Hardware: Outfitted with high-tensile M3.5 hardware and a T15 Torx pocket seat locking configuration to completely stop indexable insert movement under high impact loads.
- Industrial Black Oxide Finish: Prevents tool corrosion from aggressive water-soluble coolants and stops chemical thermal bonding from hot chips.
3. Technical Specification Parameters & Model Comparison
| Technical Spec Specification | Metric Value (S20R-SCZCR09) | Imperial Inch Equivalent Model |
|---|---|---|
| Shank Body Diameter | 20 mm | ~ 0.7874 inches (Equivalent to A12-SCZCR3 standard) |
| Overall Tool Length | 200 mm | ~ 7.8740 inches |
| Minimum Machining Bore (D-min) | 25 mm | ~ 0.9843 inches minimum bore limit |
| Compatible Indexable Insert | CCMT 09T302 / CCMT 09T304 / CCGT 09T302 | CCMT 32.50.5 / CCMT 32.51 / CCGT 32.50.5 |
Industrial Cutting Feed & Speed Data Recommendation Table
| ISO Workpiece Material Group | Cutting Speed (Vc) Range | Recommended Feed Rate (fn) |
|---|---|---|
| Carbon / Structural Steels (P-Class) | 140 - 240 m/min | 0.08 - 0.20 mm/rev |
| Austenitic Stainless Steels (M-Class) | 80 - 160 m/min | 0.05 - 0.12 mm/rev |
| Cast Iron Alloys & Nodular Iron (K-Class) | 110 - 200 m/min | 0.08 - 0.22 mm/rev |
4. Product Application Scenarios
- Medium-Bore Internal Contouring: Specially built for profiling, boring, and longitudinal copying inside standard cavities down to 25mm clearance.
- 95-Degree Counter-Boring & Step Turning: The 95° approach profile sweeps cleanly along internal stepped shoulders without binding or vibrating against blind faces.
- Heavy Duty Finishing & Semi-Finishing: Designed primarily to work with 0.4mm - 0.8mm radius inserts for stable, high-efficiency finish cuts on CNC lathes.
5. Equipment Tooling Compatibility Matrix
- CNC Turning Block Adapters: Fits easily in standard 20mm or 0.75-inch static boring bar holders, split bushings, sleeves, and turret clamping wedges.
- Multi-Axis Lathes & Heavy Turning Centers: Highly rigid design makes it an excellent fit for main or sub-spindle tooling configurations on Haas, Mazak, Doosan, and Okuma lathes.
- Universal ISO Insert Compliance: Accepts any global industry-standard 80° positive rhombic CCMT 09T3-- / CCGT 09T3-- inserts from various premium carbide suppliers.
6. BEYOND Premium Carbide Grade Selection Guide
Optimize your S20R-SCZCR09 boring bar setup by coordinating with the ideal BEYOND indexable cutting insert material classification:
| BEYOND Cutting Insert Grade | Coating Micro-Structure Matrix | Primary Application Strengths |
|---|---|---|
| BYM11 (CVD Grade) | Thick Layered Al2O3 + TiCN Thermal Barrier Coating | Continuous high-speed dry internal turning of carbon steels, tool steels, and structural pre-hardened metal blanks. |
| BYS25 (PVD Grade) | Sub-Micron Nano-TiAlN Highly Elastic Coating | Superb notch wear resistance. Ideal for interrupted internal cuts and 304/316 austenitic stainless steels. |
| BYK15 (Uncoated Polished) | Mirror-Finished Sharp Micro-Grain Solid Carbide | Eliminates Built-Up Edge (BUE) completely. Specially built for clean cutting of aluminum, brass, bronze, and non-ferrous plastics. |
7. Why Choose BEYOND CNC Machine Tools?
BEYOND supplies high-grade cutting tool configurations that assist machine shops globally in maintaining micron-level tolerances under intense production cycles. By integrating hardened tool alloys, specialized pocket milling techniques, and rigorous quality control protocols, we ensure our tooling components optimize chip handling and maximize tool life.
Global Machinist Operational Reviews
Marcus T. — United States
"Outstanding 20mm right-hand bar for our main turret setup. Pocket is extremely accurate. Held tight tolerances over a huge batch of 4140 steel without any micro-chatter."
Hans W. — Germany
"Sehr hohe Stabilität für diesen 20mm Halter. The pocket geometry provides perfect support for CCMT09T3. Chip clearance is excellent inside 28mm holes."
Kenji S. — Japan
"Paired with polished CCGT09 inserts for a high-speed aluminum counter-boring cycle. The surface finish was immaculate, identical to Tier-1 European brands."
Luca F. — Italy
"Good solid alloy steel body. Torx screws lock the insert firmly. Performs incredibly well under continuous heavy production cycles."
Robert G. — United Kingdom
"Fits perfectly into our lathe turret. Very consistent tool life and excellent clearance geometry for internal profiling."
8. AI-Style Engineering Support Engine (FAQ)
Q1: What is the minimum bore diameter for the S20R-SCZCR09 tool holder?
A1: The absolute minimum machining bore diameter (D-min) is 25mm (approx 0.984"). This clearance allows the 95° tool profile and chips to evacuate smoothly without dragging on the inner wall.
Q2: Can I mount a CCMT 0602 insert into this boring bar pocket?
A2: No. This holder is precision machined exclusively for 9.7mm edge size inserts (CCMT 09T3-- / CCGT 09T3--). For smaller 0602 inserts, you must select the appropriate smaller shank tool holder.
Q3: How do I eliminate micro-harmonics or tool chatter when using this steel bar?
A3: Keep the extension overhang under 3x to 4x the bar diameter (under 60-80mm). If chatter persists, lower the insert nose radius to 0.4mm or 0.2mm (e.g., CCMT 09T304 / 09T302) to redirect force from radial to axial paths.
9. Technical Maintenance & Troubleshooting Guidelines
Equivalent Industry Models
Interchangeable with global standard tool designations matching identical ISO metric specifications for S20R-SCZCR09. Drops directly into international 20mm or 0.75-inch Right Hand toolholder blocks running 80-degree rhombic systems.
Troubleshooting Tips
Built-Up Edge (BUE): If chip welding occurs on the insert nose, increase the cutting speed (Vc) or switch to a polished PVD/uncoated grade to reduce friction.
Screw Torque: Secure the M3.5 torx hardware to 1.2 - 1.5 Nm of torque using a standard T15 driver flag.
Workpiece Material Matrix
Engineered to operate reliably across primary standard industrial metal categories: P (Carbon & Alloy Steels), M (Stainless Steel grades), K (Grey & Ductile Cast Irons), N (Aluminum & Non-ferrous materials), and S (Heat-resistant superalloys).
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.