CBN blade 4T-CNGA120408 BNC200 CNC lathe tool carbide blade MCFNR MCLNR

About the product

Blade type: CBN turning blade

Model: CNGA blade

Applicable toolholder: MCFNR /MCLNR turning toolholder

Cutting material: hardened steel (50~65HRC)/chilled cast iron (hardness ≥45HRC)

Core Material: Cubic Boron Nitride (CBN)

• Hardness: 3000–5000 HV (Vickers Hardness), BNC200 blade far exceeding traditional carbide (900–1200 HV). This extreme hardness enables it to withstand the abrasion of high-hardness workpieces without edge dulling.

• Thermal Conductivity: 130–170 W/(m·K), superior to carbide, ensuring efficient dissipation of cutting heat during high-speed machining.

• Chemical Inertness: Non-reactive with ferrous metals (steel, cast iron) at temperatures up to 1200°C, eliminating adhesion or diffusion wear—common pitfalls when machining hard steel with carbide tools.

• 
  

• 
  

  
  

• 
  

Key Features

1. Exceptional Hardness & Wear Resistance
   The 3000–5000 HV CBN Carbide Insert matrix maintains a sharp cutting edge even when machining materials with hardness up to 65 HRC (e.g., hardened alloy steel, chilled cast iron). Unlike carbide blades that require frequent replacement, the BNC200 resists wear for extended periods, reducing tool change downtime by 40–60% in heavy-duty hard turning.
2. Superior Thermal Stability
   CBN’s inherent heat resistance allows the BNC200 to perform reliably at temperatures exceeding 1000°C. During high-speed cutting (e.g., 80–200 m/min for hardened steel), the blade avoids softening or thermal cracking, ensuring consistent precision (dimensional tolerance ±0.005mm) and surface finish (Ra ≤ 1.6μm) across batches.
3. 
   
   Strong Chemical Stability
   Unlike carbide, which can react with steel at high temperatures (causing built-up edge), the BNC200’s CBN material remains chemically inert to ferrous metals. This prevents material welding to the cutting edge, reducing surface roughness and eliminating the need for post-machining polishing—critical for components like bearing races or mold cores.
4. Advanced TiAlN Coating
   The blade is enhanced with a multi-layer TiAlN (Titanium Aluminum Nitride) PVD coating, which adds:

• Increased Hardness: Coating hardness of 3000–3500 HV, further boosting wear resistance.

• Oxidation Resistance: Protects the CBN core from oxidation at temperatures up to 800°C.

• Low Friction: Coefficient of friction (0.4 vs. 0.6 for uncoated CBN), reducing cutting force by 15–20% and minimizing heat generation.

Applications

• Target Materials:

• Hardened steel (50–65 HRC): Gear shafts, brake rotors, and mold inserts.

• Chilled cast iron (hardness ≥ 250 HB): Engine blocks, cylinder liners, and pump housings.

• High-speed steel (HSS): Cutting tool blanks and precision shafts.

• Key Operations:

• Hard turning (external/internal turning of hardened components).

• Facing and shoulder machining of high-hardness parts.

• Semi-finishing/finishing of parts that require tight tolerances and no post-processing.

• Industries: Automotive (powertrain components), aerospace (landing gear parts), and mold & die manufacturing.

Compatible Machines

• CNC Lathes: Fanuc 0i-TF, Siemens Sinumerik 828D, Haas ST-40, and Mazak Quick Turn 450.

• Hard Turning Centers: Nakamura-Tome SC-100X2 and Okuma LB3000EX, designed to handle the high cutting forces of CBN machining.

• Toolholders: Requires rigid CBN-specific toolholders (e.g., TNMG or CNMG series) to minimize vibration, ensuring edge integrity.

• 
  

Performance & Lifespan

• Recommended Cutting Parameters:

• Hardened Steel (55–65 HRC): cnc tools Cutting speed 80–150 m/min; feed rate 0.1–0.2 mm/rev.

• Chilled Cast Iron: Cutting speed 100–200 m/min; feed rate 0.15–0.3 mm/rev.




• Service Life:

• 5–10 times longer than carbide blades in hardened steel machining (e.g., 500–1000 parts per edge vs. 50–100 for carbide).

• Maintains precision even after 200+ minutes of continuous cutting, reducing tool inventory costs.

  
  

User Testimonial

Mark Chen, senior machinist at Precision Mold & Die Co., shares: “We used to go through 3 carbide blades a day machining 60 HRC mold inserts—now we use one BNC200 blade for a full week. The surface finish is so smooth we skipped our polishing step, cutting lead time by 2 days per mold. Even at high speeds, the blade stays sharp, and there’s zero built-up edge. It’s expensive upfront, but the cost per part is 70% lower. Total game-changer.”

Summary

The BNC200 CBN blade leverages super-hard CBN material and advanced TiAlN coating to solve the challenges of machining high-hardness materials. Its combination of wear resistance, thermal stability, and chemical inertness delivers precision, efficiency, and cost savings—making it an indispensable tool for industries where hard turning quality and productivity matter most.

About Our Company

Jinan Xinxin Trading Co., Ltd. is a company specializing in a full range of turning tools, milling tools, holemaking tools, carbide cutting tools, machine tool accessories and

other products. At the same time, we accept non-standard product customization and provide perfect tooling solutions for the machining and manufacturing industry. 

After years of development, our company firmly believe in the concept of integrity-based, with high-quality service so that the company's products are exported to

 Europe, the Middle East, South America, Southeast Asia throughout the world's more than 40 industrialized countries and regions, won the majority of domestic

 and foreign customers to support and trust.

Jinan Xinxin Trading Co., Ltd. was founded in 2012, is an excellent comprehensive imported CNC cutting tools agents in Shandong, the company firmly believe in 

the concept of good faith, with high quality and attentive service. The company believes in the concept of good faith, with high quality and attentive service. For

 the various machining enterprises to supply the world's famous brands of imported CNC cutting tools, machining center tools.

Company Brands

Our company brand IRONROOT series products, with excellent quality and perfect service, strive to reduce the cost of using tools for you.

Main products

Our company, as an important link in the machining field, is following and driving its whole system to run. Our distribution of products has become increasingly systematized, mainly including: Sandvik Coromant sandvikcoromant, Seco, Walter, Kennametal Group Kennametal, Mitsubishi MITSUBISHI, Sumitomo Sumitomo, Kyocera Sholette Kyocera CERATIP, Toshiba, Daijie, Hitachi Tools HITACHI TOOL, ISCAR ISCAR, German cobalt collar Guehring, TEGUTEC TAEGUTEC, KORLOY KORLOY and so on.

Domestic brands: Zhuzhou Diamond Brand, Zigong Great Wall Brand, Zhuzhou Jingcheng Brand, Chengdu Yingge, Ha Yigong, Harbin Tool Factory, Southwest Tools, Chengqi Tools, Shaanxi Cemented Carbide, Zhuzhou Cemented Carbide, Guizhou Yihai, Shanghai Tool Factory and a series of domestic and foreign well-known brands of manufacturers of various types and specifications of CNC blades, Metal lathe tools CNC cutting tools, whole tools, machine-clamped blades, welded blades, toolposts, shank, holder, tungsten steel slats, bars. Tungsten steel slats and bars.

At present, our company's product range includes turning tools, milling tools, drilling tools, tooling systems, carbide cutting tools, machine tool accessories and so on.

Our Customer Reviews

Our products are exported to various countries, including the United States, the United Kingdom, Spain, Italy, Belgium, France, Germany, etc., and are deeply loved and supported by users in these countries. Our products are cost-effective, quality guaranteed, and genuine products.

 Thank you very much for watching

Welcome to inquire about the prices, and we will provide you with the best service.

Website: https://www.ironrootcnctools.com
Whatsapp/Mobile: +86 13969129141
Email: lronroot190@gmail.com