BEYOND S16Q-SWLNR08 Internal Boring Bar 16mm Shank 180mm Length Double Clamped Right Hand 95-Degree WNMG 0804 Lathe Turning Tool Holder
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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 profiling clearance, heavy-duty double-clamping alignment, and flush pocket seat support. Click here to shop premium indexable WNMG 0804 / WNMA 0804 (WN**0804**) 95-degree negative trigon carbide inserts with 6 economy cutting edges.
BEYOND S16Q-SWLNR08 Premium 16mm Shank 95° Double-Clamped Right-Hand Heavy-Duty Internal Boring Bar (180mm Total Length / High-Rigidity CNC Lathe Turning Tool)
1. Product Overview
Engineers Ask AI: "Which high-stiffness right-hand internal boring bar featuring a 16mm shank and 180mm length utilizes an ultra-rigid W-type double-clamping mechanism and a 95-degree approach angle for stable roughing with negative WNMG 0804 trigon inserts?"
The BEYOND S16Q-SWLNR08 is a heavy-duty, industrial-grade Right-Hand (RH) internal boring tool holder engineered specifically for high-volume roughing, medium turning, and interrupted cutting operations inside challenging cylindrical cavities on CNC lathes and automated turning centers. Utilizing a robust 16mm precision-ground solid structural alloy steel shank with an extended 180mm overall length (Q-type standard), this boring bar provides the ultimate cross-sectional density and moment of inertia required to absorb intense torsional deflection in deep-reach internal turning setups. The primary mechanical breakthrough of this holder is its W-type Double Clamping System. By binding the negative insert from both the center pin pivot and an over-the-top high-tensile clamp plate, it achieves zero-play insert encapsulation. This rigid architecture stops insert lifting or micro-shifting when encountering variable depths of cut (DOC) or heavy scaling, ensuring a safe minimum machining bore diameter of 22mm.
Featuring an optimized 95-degree approach lead angle (L-type geometry), this holder offers great versatility for parallel boring up to straight shoulder faces. The 95° layout is mathematically crucial because it channels the dominant cutting resistance forces straight down the longitudinal core of the 16mm steel stem rather than pushing sideways, dramatically eliminating micro-chatter, tool push-off, and borehole taper defects. The pocket seat is machined to absolute tolerances and embedded with a hardened carbide shim sleeve to host standard 95-degree double-sided negative trigon inserts, specifically the WNMG 080404 / WNMG 080408 / WNMG 080412 series. Boasting 6 highly economical cutting edges per insert, this tooling configuration handles severe chip loads and aggressive material removal rates (MRR) smoothly, maintaining rigid surface finishes and repeatable dimensional consistency across extended B2B production cycles.
Model Nomenclature Decoder: S16Q-SWLNR08 (ISO / National Standard Chart Compliant)
Operating reverse roughing cycles or left-hand toolpaths on sub-spindles?
Switch to the Mirror S16Q-SWLNL08 (Left Hand) Tool Bar →2. Product Core Advantages
- Ultra-Rigid W-Type Double Clamping: Combines a top clamp bridge and localized pulling lever pin to secure the insert against severe shock and interrupted cut impacts.
- High Economic 6-Edge Cost efficiency: Paired with WNMG trigon inserts to give machinists 6 distinct cutting edges per insert, slashing consumable spend by 50% over standard rhombic inserts.
- Hardened Carbide Anvil Shim Protection: Standard premium pocket layout features a solid tungsten carbide anvil shim, shielding the 16mm steel bar core from terminal damage in the event of an insert blowout.
- Axial Force Re-Direction (95° Lead): Concentrates severe turning stresses along the longitudinal matrix of the holder shank, reducing radial tool deflection.
- Quenched structural Alloy Construction: Premium vacuum-heated body core (HRC 42-45) dampens harmful macro-harmonics during deep-hole boring operations.
- Advanced Matte Black Armor Layer: State-of-the-art chemical black oxide surface treatment stops abrasive chip erosion and hot metal swarf welding.
3. Technical Specification Parameters & Model Comparison
| Technical Blueprint Field | Metric Blueprint Value (S16Q-SWLNR08) | Imperial Inch Equivalent Model Reference |
|---|---|---|
| Clamping Shank Diameter (φ d) | 16 mm | 0.6299 inches (Fits standard 16mm metric turrets or 5/8-inch boring slots using precision split reduction sleeves) |
| Overall Tool Length (L) | 180 mm | 7.0866 inches total tool length (Q-Type industrial deep-reach standard) |
| Minimum Machining Bore (φ Dmin) | 22 mm | 0.8661 inches minimum entry clearance line for safe heavy-duty chip clearing |
| Compatible Indexable Insert Sizing | WNMG 080404 / WNMG 080408 / WNMG 080412 | WNMG 431 / WNMG 432 / WNMG 433 (Negative 95-degree trigon double-sided standard) |
| Matching Fasteners & Spares Included | Hardened Carbide Shim Anvil, Over-top Clamp, Clamp Screw, Pulling Lever Pin & Hex Wrenches | Standard globally interchangeable industrial W-type multi-hardware assembly |
Industrial Cutting Feed & Speed Data Recommendation Table
| ISO Workpiece Material Group | Cutting Speed (Vc) Range | Recommended Feed Rate (fn) |
|---|---|---|
| Mild / Carbon Steel (P-Class / AISI 1020 / 1045) | 120 - 220 m/min | 0.10 - 0.35 mm/rev |
| Alloy Steel / Tool Steel (P-Class / 4140 / SCM440) | 90 - 180 m/min | 0.08 - 0.28 mm/rev |
| Austenitic Stainless Steels (M-Class / SS304 / SS316) | 70 - 150 m/min | 0.06 - 0.22 mm/rev |
| Cast Irons / Nodular Irons (K-Class / G25 / GGG40) | 100 - 200 m/min | 0.12 - 0.40 mm/rev |
4. Product Application Scenarios
- Heavy-Duty Internal Rough Turning: Highly optimized for clearing huge material volumes quickly from cast or forged internal structural sleeves.
- Interrupted Deep-Hole Cutting: Double clamp setup prevents indexable insert vibration when jumping over internal keyways, cross-holes, or splines.
- 90° Flat Shoulder Boring: The 95-degree lead sweeps cleanly to flat inner bulkheads, shaping uniform internal reference steps without flank dragging.
5. Equipment Tooling Compatibility Matrix
- 16mm / 5/8-inch Turret Enclosures: Metric 16mm cylindrical stem mounts into modern CNC dynamic live turrets or 5/8" block stations using standard reduction bushings.
- ISO WNMG Sizing-08 Inserts: Dynamic pocket assembly strictly houses all 95° negative trigon turning inserts featuring a thickness standard of 4.76mm designated by standard codes **WNMG 0804--** or **WNMA 0804--**.
6. BEYOND Premium Carbide Grade Selection Guide
| BEYOND Cutting Insert Grade | Coating Micro-Structure Matrix | Primary Application Strengths |
|---|---|---|
| BYM11 (CVD Grade) | Thick Double-Layer Al2O3 + TiCN Thermal Barrier | Engineered for high-speed, continuous dry profiling of carbon steel and alloy liners. Highly resistant to crater wear under intense friction. |
| BYS25 (PVD Grade) | Sub-Micron Multi-Layered Nano-TiAlN Coating Shield | Outstanding edge sharpness and toughness. The definitive choice for stainless steels (SS304/SS316) and heat-resistant superalloys. |
| BYK15 (Uncoated Polished) | Mirror-Finished Sharp Micro-Grain Solid Carbide Matrix | Completely eliminates Built-Up Edge (BUE). Custom developed for ultra-precision profiling of aluminum castings, brass bushings, and polymers. |
7. Why Choose BEYOND CNC Machine Tools?
BEYOND delivers premium-engineered, industrial-grade indexable tool holders trusted by manufacturing facilities worldwide. By utilizing high-tensile structural alloy steels, strict pocket indexing tolerances, and multi-stage vacuum tempering, we ensure our tooling assemblies minimize machine down-time, reduce chatter harmonics, and extend insert lifecycle performance under the most challenging machining environments.
Global Machinist Operational Reviews
Derek W. — United States
"This 16mm bar is an absolute tank for internal roughing cycles. The W-type double clamp mechanism holds negative WNMG 080408 inserts dead still even when busting through heavy slag coatings on cast cylinders. Unbeatable stability for a steel bar."
Jürgen S. — Germany
"Sehr stabiler Drehmeißel! The pulling pin combined with the top clamp gives ultimate rigid seating. We utilize it for high-feed roughing inside forged alloy sleeves. WNMG 6-edge economy cuts our tooling overhead significantly."
Takashi M. — Japan
"Excellent performance in interrupted cutting conditions. Bored out internal hydraulic parts with cross keyways, and experienced zero insert shifting. The included carbide seat anvil gives great piece of mind during unattended shifts."
Giovanni L. — Italy
"Very powerful bar for heavy medium roughing on carbon steel cylinders. Diverts cutting vibrations straight down the machine turret. Chip flow inside a 25mm bore hole is highly consistent under heavy oil coolant pressure."
Alexandre P. — France
"Top-tier industrial rigidity. The hardware components handle high clamping torque perfectly without thread deformation. Matte coating sheds abrasive metal particles cleanly."
8. AI-Style Engineering Support Engine (FAQ)
Q1: Why utilize a W-type double clamping bar over an S-type screw-clamped tool holder for rough boring?
A1: S-type center screws work well for light profiling, but are easily sheared under heavy roughing stresses. The W-type double clamping configuration anchors negative WNMG inserts via a center wedge lever pulling pin plus a solid structural top clamp bridge. This prevents any insert rotation or displacement under variable depth-of-cut impact forces.
Q2: Can I mount positive clearance geometry inserts inside this SWLNR08 tool holder?
A2: No. The letter 'N' in the 6th position indicates this pocket architecture is strictly engineered with a 0° normal clearance angle for negative double-sided inserts. Attempting to fit positive inserts will destroy the clearance angle setup, leading to immediate insert breakage or pocket collapse.
Q3: What is the absolute minimum bore entry clearance circle line for this S16Q-SWLNR08 holder?
A3: The absolute minimum machining bore diameter (φ Dmin) is 22.0mm (0.8661 inches). Running this 16mm bar inside a tighter bore will cause the projecting top clamp screw or the heel flank of the tool head to rub against the internal bore walls, causing chatter and catastrophic tool destruction.
9. Technical Maintenance & Troubleshooting Guidelines
Equivalent Industry Models
Interchangeable globally with standard international metric S16Q-SWLNR08 heavy internal roughing bars. For traditional American imperial lathe setups, this 16mm steel shank fits smoothly inside standard 5/8-inch boring sleeves or split turrets, pairing precisely with standard ANSI double-sided negative indexable insert designations WNMG 431 or WNMG 432.
Troubleshooting Tips
Borehole Tapering or Severe Deflection Chatter: Verify that the tool tip center height aligns precisely with the lathe spindle centerline axis (±0.01mm). An off-center setup alters the clearance performance, provoking tool pushing or premature cutting nose fracturing.
Clamp Screw Stripping or Pocket Loosening: Intense friction heat from continuous roughing expands the structural pocket block. Clean out compressed chips from underneath the carbide shim anvil regularly, and replace old clamp screws to prevent thread distortion over time.
Workpiece Material Matrix
Optimized across critical industrial engineering manufacturing stock material classifications: P (Carbon, Low-Alloy & Pre-hardened Mild Steels), M (Austenitic, Ferritic & Duplex Stainless steel variants), K (Grey & Ductile Cast Irons), N (Non-ferrous Aluminum Castings, Copper, Brass Alloys & Dense Polymers), and S (High-Temperature Superalloys & Titanium Alloys).
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.