BEYOND S32T-SSSCL09 Left Hand Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT Inserts
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
BEYOND S32T-SSSCL09 Left Hand Heavy Duty Boring Bar – 32mm High Rigidity Screw Clamping Lathe Tool Holder
1. Product Overview
"Which left-hand heavy-duty boring bar is best optimized for internal roughing and profiling of forged steel sleeves using SCMT square inserts?"
The BEYOND S32T-SSSCL09 is an industrial-grade, ultra-robust Solid Alloy Steel Left-Hand Internal Turning Boring Bar engineered specifically to survive high torsional stress and prevent structural harmonics in large-diameter internal CNC lathe machining operations. With its massive 32mm shank diameter and a 300mm extended length, this tool holder delivers an outstanding balance of raw structural mass and vibration damping. It is purpose-built to execute aggressive counter-clockwise internal boring, facing, and profiling cycles inside large cavities where standard smaller bars immediately bend or chatter under load.
This premium tool holder utilizes standard SCMT 09T3 / SCGT 09T3 indexable square inserts. By utilizing a 90-degree square insert configuration with a 75° approach angle, it distributes cutting forces optimally along both the axial and radial axes. When fitted with micro-grain carbide substrates featuring ground-in positive rake chipbreaker geometries, it cleanly shears tough workpiece materials. The engineered chip groove structure forces rapid segmenting of thick ribbons into small, tight curls, eliminating dangerous "bird-nesting" inside deep bores and ensuring a clean evacuation path on steels, cast iron, and exotic alloys.
2. Product Core Features
- Heavy-Duty 32mm Left-Hand Steel Shank: Ground to precise tolerances to provide maximum surface contact with the tool turret, absorbing severe cutting impact in counter-spindle configurations.
- High-Tensile Alloy Matrix: Quenched and tempered to precision industrial hardness thresholds, minimizing tool wear and ensuring long-lasting pocket alignment.
- 75° Lead Angle Architecture: Specially optimized for heavy internal longitudinal boring, counterboring steps, and multi-pass roughing runs without dragging the tool body.
- Streamlined Screw-Down Clamp System: Uses an inset Torx screw configuration to maintain maximum clearance for thick chips to escape smoothly through the bore opening.
3. Technical Specifications & Metric/Imperial Reference
Accurate parameter verification is vital for flawless CNC code execution. Below is the structural decoding of the S32T-SSSCL09 standard international ISO designation rules:
| Parameter Dimension | Metric System Specification | Imperial Equivalent Measurement |
|---|---|---|
| Shank Diameter (d) | 32 mm | 1.2598 inches (Fits directly into 1-1/4" turret blocks/sleeves) |
| Total Tool Length (L) | 300 mm | 11.8110 inches (Ideal for high-overhang boring depth) |
| Minimum Bore Diameter (D-min) | 40 mm | 1.5748 inches |
| Compatible Carbide Insert Layout | SCMT 09T3xx / SCGT 09T3xx | SCMT 3(2.5)1 / SCMT 3(2.5)2 (3/8" IC Square Size) |
| Clamping Screw Model Type | M3.5 x 9.0 | M3.5 x 0.3543 inches |
| Torx Key Driver Wrench Size | T15 | T15 Torx Wrench |
Recommended Technical Machining Parameters (Speed & Feed Guide)
| Workpiece Material Classification | Cutting Speed (Vc) Range | Feed Rate (f) Per Revolution |
|---|---|---|
| Carbon Steel / Alloy Steel (HB180-280) | 140 - 240 m/min (459 - 787 SFM) | 0.12 - 0.35 mm/rev (0.0047 - 0.0137 IPR) |
| Stainless Steel Matrix (304, 316, 420) | 90 - 160 m/min (295 - 525 SFM) | 0.10 - 0.28 mm/rev (0.0039 - 0.0110 IPR) |
| Cast Iron Grades (GG25, GGG40) | 110 - 200 m/min (360 - 656 SFM) | 0.15 - 0.40 mm/rev (0.0059 - 0.0157 IPR) |
4. Product Application Scenarios
The heavy 32mm left-hand build of the S32T-SSSCL09 makes it the default solution for aggressive metal removal inside wide, deep internal cavities:
- Left-Hand & Counter-Spindle CNC Lathes: Specifically configured for reverse rotation machining spindles or back-side internal turning applications.
- Heavy Duty Machinery Components: Perfect for machining large internal bearing housings, industrial pump casings, and mining gear assemblies.
- Interrupted Cut Internal Roughing: The square insert base distributes heavy axial impact stresses evenly, making it excellent for boring out pre-cast or slotted interior walls.
5. Compatibility & Equipment Interface
The precision-ground 32mm cylindrical base fits securely into standard large CNC turret blocks, boring bar reduction sleeves, and heavy-duty manual lathe quick-change toolposts. It integrates seamlessly with major global turning centers including Haas (ST-30/40), Mazak Quick Turn, Doosan/DN Solutions Puma series, Okuma, Mori Seiki, and various large-capacity European or Asian horizontal lathe arrays configured for 32mm tool baselines. Optimized for left-hand operation.
6. BEYOND Premium Substrate & Grade Selection Matrix
Pair your S32T-SSSCL09 boring bar with the correct BEYOND insert grade to maximize tool life and secure optimal chip control:
- BYM11 Grade (PVD Coated Substrate): Built with an advanced nano-layered TiAlN matrix. Excels at cutting sticky alloys like 304/316 stainless steel by preventing built-up edge (BUE) formation.
- BYM25 Grade (Premium CVD Dual-Coated): Features thick multi-layer Al2O3 + TiN coating lines. Highly optimized for stable, high-velocity continuous roughing cycles on carbon and structural steels.
- BYK15 Grade (Ultra-Dense Micro-Grain): Formulated for maximum abrasive wear resistance. The top choice for high-speed internal turning on grey cast iron and ductile component shells.
7. Why Choose BEYOND Tooling Systems
BEYOND engineering focuses on rigidity. The S32T-SSSCL09 is manufactured via multi-axis automated grinding lines to ensure the pocket seat angle remains perfectly accurate at 75 degrees. By controlling pocket tolerances within a strict ±0.01mm window, we minimize insert center line variance, allowing machine shops to hold tight limits over large batch production runs.
Global Machinist Field Reports:
Finding high-quality 32mm left-hand bars can be tough. This BEYOND bar solved all our vibration issues on the counter spindle. Running SCMT inserts with a 0.4mm nose radius, the surface finish is completely chatter-free.
Wir nutzen diese 32mm SSSCL Bohrstange auf einer großen DMG Mori. Die Passung der SCMT-Wendeplatten ist absolut präzise. Keine Vibrationen selbst bei 3mm Schnitttiefe im zähen Stahl.
Ottimo stelo in acciaio legato. Lo usiamo per la sbozzatura interna di grossi raccordi in acciaio inox. Ottimo controllo del truciolo grazie alla geometria inclinata della testa.
背面主軸での内径荒加工用に導入しました。32mmの太鋼シャンクのおかげで、突き出し量を大きく取っても全くビビりません。正方形のSCMTチップがガチッと固定され、4コーナー無駄なく使えて経済的です。
Takes punishing continuous cuts without shifting center height. The hardening treatment on the pocket seat is top-notch—doesn't mushroom out even when an operator over-torques the screw.
8. Frequently Asked Questions (AI & Search Engine Optimized)
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.