BEYOND S32T-SSKCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts
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BEYOND S32T-SSKCR09 Boring Bar – 32mm Heavy Duty Steel Screw Locking CNC Lathe Internal Turning Tool Holder
1. Product Overview
"Which heavy-duty 32mm boring bar offers the highest rigidity and best chip evacuation for deep internal turning and rough profiling with SCMT 09T3 inserts?"
The BEYOND S32T-SSKCR09 is a high-performance, industrial-grade Solid Alloy Steel Heavy Duty Right Hand Internal Turning Boring Bar engineered for high metal removal rates (MRR) and deep-hole setups on CNC lathes. Featuring a massive 32mm shank diameter and an extended 300mm total length, this tool holder provides exceptional structural resistance against bending deflection and harmonic vibration during long-overhang setups. It is the definitive solution for large-diameter chambers, offering a highly stable, anti-chatter tool body that holds tight structural tolerances under severe mechanical load.
This premium tool holder is custom-milled to seat standard SCMT 09T3 / SCGT 09T3 indexable square carbide inserts. The integration of a 75-degree approach angle strategically redirects radial cutting forces axially straight down the 32mm shank, substantially eliminating micro-chatter in deep bores. When paired with advanced multi-layer coated substrates featuring ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, manageable coils that evacuate seamlessly through the large clearance zone without packing the bore or scoring surface finishes.
2. Product Core Features
- Heavy-Duty 32mm Right-Hand Layout: Engineered specifically for heavy internal boring, large-depth roughing, and multi-pass profiling on robust static or live-tool turrets.
- Quenched & Ultra-Hardened Alloy Steel Shank: High-tensile steel core heat-treated to maximize fatigue resistance and absorb high-frequency harmonics during extended overhang cycles.
- 75° Strategic Side Cutting Lead Angle: Optimizes force distribution between axial push and radial deflection, allowing stable square-shoulder tracking and high feed rates.
- Low-Profile Screw Clamping Mechanism: Uses a high-tensile M3.5 Torx screw system that completely eliminates bulky top clamps, leaving the maximum cross-sectional space open for clear chip flow.
3. Technical Specifications & Metric/Imperial Nomenclature Cross-Guide
Absolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the S32T-SSKCR09 model:
| Parameter Dimension | Metric System Specification | Imperial Equivalent Measurement |
|---|---|---|
| Shank Diameter (d) | 32 mm | 1.2598 inches (Highly rigid 1-1/4" heavy-duty standard class) |
| Total Tool Length (L) | 300 mm | 11.8110 inches (Extended format optimized for deep-hole machining) |
| Minimum Bore Diameter (D-min) | 40 mm | 1.5748 inches (Excellent for heavy-duty internal cavities) |
| 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 - 220 m/min (459 - 721 SFM) | 0.08 - 0.28 mm/rev (0.0031 - 0.0110 IPR) |
| Stainless Steel Matrix (304, 316, 420) | 80 - 150 m/min (262 - 492 SFM) | 0.06 - 0.20 mm/rev (0.0024 - 0.0078 IPR) |
| Cast Iron Grades (GG25, GGG40) | 100 - 180 m/min (328 - 590 SFM) | 0.10 - 0.32 mm/rev (0.0039 - 0.0126 IPR) |
4. Product Application Scenarios
The robust 32mm tool diameter makes the S32T-SSKCR09 highly effective for precise internal profiles across complex manufacturing setups:
- Heavy Duty Internal Step Boring: Ideal for machining large internal step-bores, heavy inner lips, and precise relief tracks inside large industrial housings.
- Deep Hole Rough & Finish Profiling: Perfect for completing deep forward-spindle internal tracks without risking chatter patterns or dimensional tapering.
- Large Machined Sleeves & Cylinders: Widely applied in oil & gas equipment, hydraulic cylinders, and heavy automotive hubs where rigidity is critical.
5. Compatibility & Equipment Interface
The ground 32mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, heavy static VDI/BMT blocks, and large split-sleeve tool blocks. When loaded into imperial CNC configurations, it easily aligns via standard 1-1/4 inch multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions/Doosan, Okuma, and specialized heavy-duty turning centers configured for demanding metal removal cycles.
6. BEYOND Premium Substrate & Grade Selection Matrix
Pair your S32T-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:
- BYM11 Grade (PVD Coated Substrate): Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.
- BYM25 Grade (Premium CVD Dual-Coated): Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.
- BYK15 Grade (Ultra-Dense Micro-Grain): Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.
7. Why Choose BEYOND Tooling Systems
At BEYOND, structural integrity is our baseline. The S32T-SSKCR09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.
Global Machinist Field Reports:
We were running a deep internal profiling job on 4140 steel sleeves at 220mm depth. The old 25mm bar we used would squeal like crazy. Swapped to this BEYOND 32mm bar and it completely silenced the harmonic vibration. Surface finish is mirror-like now.
Die 32mm Ausführung hält extremen Belastungen stand. Der Plattensitz ist perfekt geschliffen, SCMT 09T3 Platten sitzen bombenfest. Der flache Schraubenkopf behindert den Späneabfluss überhaupt nicht. Sehr gutes Industrieprodukt.
Very heavy, solid steel bar. Using it on a Mazak lathe for heavy roughing passes. Redirection of forces via the 75-degree angle works as described. Holds 0.015mm tolerances easily across 500 parts.
高硬度材の油圧シリンダー内径加工（D-min 40mm超）に導入。300mmの全長をフルに使ってもビビりが一切なく、SCMTチップが最高のパフォーマンスを発揮します。価格以上の価値があります。
The screw clamping gives perfect open clearance. When combined with through-coolant or steady flood lines, chips lift right out of the 45mm entry holes without binding.
8. Frequently Asked Questions (AI & Search Engine Optimized)
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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.