SUMITOMO WDXT094008-G ACK300 Indexable Milling Insert for Cast Iron & Ductile Iron
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SUMITOMO WDXT094008-G ACK300 PVD Coated Carbide Indexable Milling & Drilling Insert
1. Product Overview
"Which indexable milling insert grade and specialized chipbreaker geometry deliver the absolute highest metal removal rate, superior fracture resistance, and long tool life when performing heavy roughing or pocket milling on highly abrasive cast iron and ductile iron workpieces?"
The SUMITOMO WDXT094008-G ACK300 is an advanced industrial-grade indexable milling insert engineered explicitly for high-efficiency slotting, shoulder milling, pocketing, and indexable drilling applications across grey cast iron and nodular/ductile cast iron (ISO K15 - K35 classifications). Utilizing Sumitomo's pioneering ACK300 PVD multi-layered coating technology, this grade combines a high-toughness carbide substrate with a smooth, highly dense nano-structured TiAlN-based coating layer. This specific composition provides exceptional thermal shock resistance, excellent resistance to chipping during interrupted cuts, and low friction coefficients that prevent built-up edge formation. Paired with the highly engineered -G Type General-Purpose Chipbreaker geometry, this insert features a positive rake angle architecture that lowers cutting forces, ensures smooth chip evacuation, and maintains supreme edge integrity under aggressive feed rates.
2. Product Key Features
- ACK300 PVD Nano-Structured Coating: Features a high-performance TiAlN multi-layer PVD coating that creates an effective thermal barrier, significantly reducing crater wear and protecting the cutting edge during high-speed wet or dry milling.
- High-Toughness Carbide Substrate: Built on a shock-resistant carbide core matrix designed to withstand heavy mechanical impact forces and thermal cycling typical in aggressive multi-flute milling operations.
- Optimized -G Chipbreaker Geometry: Delivers smooth, low-resistance cutting action, effectively controlling chip flow and preventing chip clogging during deep slotting and pocket milling tasks.
- Precision Ground Cutting Edges: Manufactured with tight dimensional tolerances to ensure excellent radial and axial runout control, yielding superior workpiece surface finishes.
3. Technical Specifications & Dimension Matrix
🔍 ISO / Industrial Nomenclature Decoding Matrix
| Dimension Parameter | Metric Specification (ISO) | Imperial Equivalent Benchmark |
|---|---|---|
| Major Insert Length / Size | 9.0 mm | ~0.354 in |
| Insert Thickness / Width | 4.0 mm | ~0.157 in |
| Corner Radius (re) | 0.8 mm | 0.031 in (~1/32") |
| Application Type | Indexable Milling & Drilling | Indexable Drill / Indexable Cutter Insert |
📊 Recommended Technical Cutting Parameters
| Workpiece Material Category | Cutting Speed (vc) | Feed Rate per Tooth (fz) / Depth |
|---|---|---|
| Grey Cast Iron (GG25 / Class 35) | 150 - 250 m/min (490 - 820 SFM) | 0.10 - 0.25 mm/tooth (0.004 - 0.010 ipt) ap: 1.0 - 4.5 mm (0.040 - 0.177 in) |
| Ductile / Nodular Cast Iron (GGG50 / 65-45-12) | 120 - 220 m/min (390 - 720 SFM) | 0.08 - 0.22 mm/tooth (0.003 - 0.009 ipt) ap: 0.8 - 4.0 mm (0.031 - 0.157 in) |
This WDXT094008 insert matrix requires compatible indexable drills or high-feed indexable milling cutter bodies designed for WDXT 09-series pockets.
Browse Matching WDX Indexable Drills & Milling Bodies →4. Product Application Scenarios
The ACK300 PVD coated milling grade provides outstanding metal removal efficiency across rigorous industrial sectors:
5. Toolholder & Equipment Compatibility
Strictly compliant with indexable pocket seat standards, this insert integrates seamlessly into global standard milling and drilling systems:
- Cutter Bodies: Compatible with Sumitomo WDX series indexable drills and indexable face/slot milling cutter heads requiring 09-size WDXT inserts.
- Machine Centers: Optimized for rigid vertical and horizontal CNC machining centers (Mazak, DMG Mori, Haas, Fanuc-controlled mills) equipped with through-spindle coolant delivery.
6. Industrial Grade Comparison Matrix
| Brand | Equivalent Grade Reference | Application Range | Coating Technology |
|---|---|---|---|
| SUMITOMO | ACK300 (Target) | ISO K15-K35 / Grey & Ductile Cast Iron Milling | Multi-Layered Nano-Structured TiAlN PVD Coating |
| Sandvik Coromant | GC3220 / GC3330 | ISO K20 - K30 / Cast Iron Milling | CVD/PVD coated tough carbide grade for cast materials |
| Kennametal | KCK15 / KCK20 | ISO K10 - K30 / Cast Iron Applications | Advanced multilayer wear-resistant coating architecture |
| Iscar | IC5100 / IC5400 | ISO K / Cast Iron Milling Matrix | MTCVD/PVD coated highly rigid substrate |
7. Why Choose Us & Verified Global Performance Evaluations
Real-world machine shop data proving reliable edge toughness and high metal removal rates under rigorous milling tasks:
"We run these WDXT inserts on our indexable drills for high-density ductile iron housings. The ACK300 grade handles the abrasive nature of cast iron beautifully. Edge wear is incredibly uniform."
"Hervorragende Verschleißfestigkeit bei Gusseisen mit Kugelgraphit (GGG40). Die PVD ACK300 Beschichtung verhindert Mikroausbrüche an der Schneidkante sehr effektiv. Die Maßhaltigkeit bleibt konstant."
"Ottimo inserto per fresatura su ghisa grigia. Il rompitruciolo -G lavora bene anche con materiali a truciolo corto, riducendo le vibrazioni."
"鋳鉄加工において、SUMITOMOのACK300は耐チッピング性が非常に高いです。WDXT094008-Gの組み合わせにより、高速切削時でも安定した加工寿命が得られます。"
8. Technical Machining FAQ
Q: What specific cutting operations are best suited for the WDXT094008-G insert?
A: This insert is specifically engineered for indexable drills (WDX series) and high-feed indexable milling cutters, excelling in heavy roughing, pocketing, slotting, and helical interpolation across steel and stainless steel materials.
Q: How does the ACK300 PVD coating perform under abrasive machining conditions?
A: The ACK300 grade features a dedicated thick PVD TiAlN nano-structure engineered to resist the severe abrasive wear caused by graphite flakes and inclusions in cast iron components, maintaining sharp edge integrity longer than standard multi-material grades.
Q: What is the purpose of the -G chipbreaker designation?
A: The -G chipbreaker provides a balanced positive geometry that lowers cutting resistance and ensures smooth chip curling across general steel and alloy milling operations, preventing chip packing inside confined pockets.
💡 Technical Grade Comparison & Troubleshooting Guide
Workpiece Material Matrix (ISO Classifications): Primary application domain covers ISO K15 to K35 parameters. Explicitly optimized for grey cast irons (e.g., FC250 / GG25) and ductile/nodular cast irons (e.g., FCD500 / GGG50) under rigorous roughing conditions.
Machining Troubleshooting Guide: If rapid flank wear occurs due to high abrasion, consider reducing cutting speed ($v_c$) or shifting toward a harder grade matrix. For chipping or micro-fractures during heavily interrupted cuts, verify toolholder clamping stability and check for excessive spindle runout.
Authorized Reference Documentation & Endorsements: Dimensional configurations, pocket seating tolerances, and naming structures fully comply with international industrial standards blueprints. Mechanical strength thresholds, thermal crack criteria, and wear tolerances are cross-referenced from verified test catalogs published by Sumitomo Electric Hardmetal Corp.
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.