PCD & CBN Grinding Wheels

• A Polycrystalline Diamond (PCD) grinding wheel is a type of grinding tool made with diamond segments for aggressive material removal, often used for removing coatings like epoxy, mastic, and paint from concrete surfaces. PCD wheels offer longer working life and faster removal speed compared to traditional diamond cup wheels, making them ideal for contractors prioritizing performance and reliability. 

• What it is:PCD grinding wheels are constructed with diamond segments, typically made of polycrystalline diamond particles and a binder material. These segments are arranged in a specific pattern to create a highly abrasive surface for grinding. 

• What they're used for:They are designed for aggressive removal of hard and tacky surfaces like urethane epoxy, waterproofing membrane, and various coatings. 

• Advantages:PCD wheels offer several benefits:
  • Longer lifespan: They are more durable and last longer than many other grinding tools. 
  • Faster removal speed: They can efficiently remove materials like coatings and glues without excessive heat buildup. 
  • Versatile application: They work on various surfaces and can remove a wide range of materials, including epoxy, mastic, paint, and glue. 

• How they work:The PCD segments cut through the material to be removed, scraping away coatings and other substances. 

• Examples of applications:They are used for removing coatings from concrete surfaces, removing glues and mastics from VCT/carpet, and for preparing surfaces before painting. 

•  A CBN (Cubic Boron Nitride) grinding wheel is a type of abrasive wheel used for grinding, sharpening, or cutting various materials, particularly hard ferrous metals. CBN is a superabrasive material, second only to diamond in hardness, making it ideal for applications requiring strength and precision. Key characteristics and benefits of CBN grinding wheels:
• High Hardness and Durability:CBN's high hardness and durability allow it to efficiently grind hard materials without significant wear. 
• Thermal Stability:CBN has excellent thermal stability, resisting heat and degradation during high-temperature grinding. 
• High Thermal Conductivity:CBN's high thermal conductivity helps dissipate heat during grinding, preventing overheating and reducing the risk of glazing. 
• Effective for Hard Metals:CBN wheels are particularly effective for grinding hardened steels, superalloys, and other hard materials. 
• Precision Grinding:CBN wheels can deliver precise grinding and sharp edges with a smooth finish. 

Applications of CBN grinding wheels: 

• Tool Sharpening:CBN wheels are commonly used for sharpening cutting tools, including woodworking tools, knives, and blades. 
• Grinding Hard Materials:They are used for grinding hard metals, such as hardened steel, cast iron, and superalloys, in various industries. 
• Gear Grinding:CBN wheels are utilized for grinding gears, particularly in high-precision applications. 
• Precision Machining:CBN wheels are employed for machining molds, punches, and dies, requiring high precision. 

Types of CBN grinding wheels: 

• Vitrified Bond:CBN abrasive grains are bonded together with a glass-like material, creating a hard, durable wheel. 
• Metal Bond:CBN grains are bonded with a metal material, offering high strength and wear resistance.