At LECI, we supply a full range of high-quality CBN (Cubic Boron Nitride) grinding wheels designed to meet the demanding requirements of precision machining, mold manufacturing, hardened steel processing, and industrial component production.
CBN wheels deliver exceptional stability, long service life, and superior surface finish, especially in applications involving hardened steels after heat treatment.
All CBN grinding wheels distributed by LECI are manufactured according to strict international standards, ensuring:
- High hardness and shape retention throughout the entire grinding process
- Excellent thermal resistance, preventing burning or damage to the workpiece at high grinding speeds
- Significantly longer tool life compared to conventional grinding wheels
- High dimensional accuracy, suitable for CNC grinders, surface grinders, cylindrical grinders, centerless grinders, and tool-grinding machines
- OEM customization tailored to your specific machining requirements
- Technical support and process optimization from our engineering team
We are committed to supporting customers across all applications—from rough grinding to precision finishing and ultra-accurate machining.
What is a CBN Grinding Wheel?
A CBN (Cubic Boron Nitride) grinding wheel uses CBN abrasive grains, a super-hard material second only to synthetic diamond. With outstanding hardness, durability, and thermal stability, CBN is ideal for precision grinding—especially when machining hardened steels and high-strength ferrous materials.
CBN wheels are widely recognized as the optimal solution for high-hardness metals, particularly steels that have undergone heat treatment. Unlike diamond, CBN does not react with iron at high temperatures, making it the preferred abrasive for ferrous materials.
Materials Suitable for CBN Grinding
Hardened Steels (55–65 HRC)
The most compatible material group for CBN, including:
- SKD11, SKD61
- SKH51, High-Speed Steel (HSS)
- Tool steel, hot/cold work die steel
- Alloy steels after heat treatment
CBN ensures long-lasting sharpness, reduced burning, and a fine, consistent surface finish.
Materials Suitable for CBN Grinding
High-Speed Steel (HSS): With high hardness and alloy content, HSS requires strong cutting performance and excellent heat resistance. CBN is ideal for:
- Lathe tool grinding
- End mill and drill regrinding
- Profile tool grinding
High-carbon and Alloy Steels
Examples include:
- 90MnCrV8
- 440C stainless steel
- Chromium-vanadium steels
CBN offers stable dimensions and reduced wheel wear in long-cycle grinding.
High-hardness Ferrous Materials
Perfect for:
- Spring steels
- Heat-treated structural steels
- High-fatigue-strength components
Coated Hard Materials & Specialty Materials
CBN handles difficult-to-machine materials such as:
- PVD/CVD coated tools
- Tungsten carbide coated on steel substrate
- PM steels (Powder Metallurgy)
These applications demand high precision and minimal wheel wear, where CBN excels.
Precision Metal Components
Common high-precision grinding applications include:
- Shaft grinding, bore grinding, centerless grinding
- Ultra-precision CNC component grinding
- Mold components and cutting tool manufacturing
Contact infomation:
LECI Co., Ltd
R-1901, Saigon Trade Center Bld, 37 Ton Duc Thang Str., Ben Nghe W., Dist. 1, HCM City 70000, VN.
Long Bien, Ha Noi, VN.
Phone: (+84) 901442689 (WhatsApp)
Hotline: 02822202988
Website: lecilaser.com
