CNC Lathe Toolholder Face Milling Cutter Holder B | RFQ Sourcing Details
Cnc Machining Centers · 390-11T · Quote on request
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Original product description
Product Detailed Description This integrated milling solution combines the R390 C T toolholder with R390-11T308-PM inserts made from YG2125 high-toughness carbide , engineered to deliver exceptional performance in roughing and semi-finishing of cast iron, non-ferrous metals, and brittle materials.
Designed for CNC machining centers and milling machines, this set excels in industries like automotive casting, pump manufacturing, and general engineering, where resistance to impact and chipping is critical. Toolholder (R390 C T) Core Features Robust Construction : Machined from high-strength alloy steel (40.
Cr) with precision ground surfaces, hardened to HRC 45-50 for rigidity.
The C T specification denotes: Shank size: 20×20mm (compatible with standard tool changers) Overhang length: 150mm (balances reach and stability) Insert capacity: 2T (accommodates 2 R390-11T308-PM inserts for efficient material removal) Secure Insert Clamping : Features a wedge-lock system with precision locating pins, ensuring insert positioning accuracy within ±0.01mm.
This minimizes vibration during high-feed milling, critical for maintaining surface finish (Ra ≤3.2μm in cast iron).
Chip Evacuation Design : Optimized flute geometry directs chips away from the cutting zone, preventing re-cutting and reducing tool wear-especially useful for graphite-rich cast iron (e.g., HT250) where abrasive chips accelerate wear.
Inserts (R390-11T308-PM YG2125) Performance Advantages YG2125 Carbide Composition : A high-cobalt (≈20% Co) tungsten carbide grade renowned for superior toughness and impact resistance .
This makes it ideal for interrupted cuts (e.g., cast iron with sand inclusions) and avoids chipping common with brittle carbide grades.
PM Groove Design : The R390-11T308-PM's "PM" chipbreaker is optimized for medium to heavy feeds in cast iron, producing short, manageable chips that pair seamlessly with the toolholder's flute design.
The 11T308 specification indicates: Insert size: 11mm inscribed circle Thickness: 3.08mm Positive rake angle: Enhances cutting sharpness, reducing power consumption by 15% vs. negative rake inserts.
Versatile Coating Option : Uncoated (standard) for non-ferrous metals (aluminum, brass) to prevent material adhesion;optional TiCN coating available for high-temperature cast iron machining (up to 600°C), extending tool life by 25%. Appli
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- 390-11TBased on visible page data; confirm exact value in the RFQ.
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