4B2 dish grinding wheels 125x6x2x10x20x32 P B2-01 100% ACH M 10

The 4B2 dish grinding wheel is a highly specialized superabrasive tool designed for precision grinding, shaping, and finishing of hard materials with complex geometries. This wheel's dish-shaped profile with a central depression provides superior control over grinding depth and pressure distribution, making it an ideal choice for tool sharpening, profile grinding, and machining applications that require access to difficult-to-reach areas.

Manufactured with diamond or cubic boron nitride (CBN) abrasives, the 4B2 wheel offers exceptional wear resistance, precise material removal, and high thermal stability, making it suitable for both fine finishing and high-stock-removal applications.

Key Features & Benefits

• Dish-Shaped Profile (Angled Cup Design)

  • The 4B2 profile is optimized for applications where access to narrow grinding zones is required.
  • Allows for precise edge sharpening and finishing without excessive material removal.
  • Reduces grinding pressure on the workpiece, leading to less heat generation and longer tool life.

• Superior Abrasive Efficiency

  • Available in diamond and CBN variants, ensuring high-performance grinding of ultra-hard materials.
  • Offers stable form retention, making it highly effective for precision profiling and contouring.

• Long Wheel Life & Edge Retention

  • Advanced bond systems (resin, metal, vitrified, electroplated) provide extended durability.
  • Minimizes frequent dressing, maintaining a sharp and accurate cutting edge over prolonged use.

• Reduced Grinding Temperatures

  • Lower friction and better heat dissipation prevent workpiece burns, microcracks, and thermal damage.
  • Ideal for coolant-assisted grinding, reducing overheating and increasing efficiency in high-speed machining environments.

Material Compatibility

The 4B2 dish grinding wheel is designed for machining and sharpening ultra-hard materials used in industrial tooling, aerospace, automotive, and high-precision engineering.

Diamond Bond (for Non-Ferrous & Hard Non-Metallic Materials)

• Tungsten carbide
• Ceramics (Alumina, Silicon Carbide, Zirconia, etc.)
• Glass and quartz
• Technical and optical glass
• Composites and carbon fiber
• Semiconductor materials (silicon wafers, sapphire, etc.)

CBN Bond (for Ferrous Materials & Hardened Steels)

• Hardened steel (tool steel, HSS, die steel, etc.)
• Powder metallurgy components
• Superalloys (Inconel, cobalt-based alloys, titanium alloys)
• Chilled cast iron, nodular cast iron, and high-chromium steels

Applications

• Cutting Tool Sharpening & Regrinding

  • Used in CNC and manual tool sharpening machines for regrinding carbide and HSS cutting tools.
  • Ensures precision sharpening of milling cutters, drills, inserts, and saw blades.

• Precision Profile Grinding

  • Ideal for high-accuracy profiling in mold and die-making, ensuring superior finish and form stability.

• Aerospace & Automotive Component Machining

  • Used in turbine blade finishing, precision gears, and high-strength alloy machining.

• Glass & Ceramic Processing

  • Provides chip-free, ultra-smooth finishing in optical glass and technical ceramics.

• Medical & Semiconductor Industry

  • Suitable for precision grinding of surgical tools and semiconductor substrates.

Available Bond Types & Their Applications

• Resin Bond

  • Best for fine grinding and finishing.
  • Provides self-sharpening properties, reducing grinding forces and heat generation.

• Metal Bond

  • Highly wear-resistant, ideal for profile retention and high-stock removal applications.
  • Commonly used for ceramic, glass, and carbide grinding in automated production.

• Vitrified Bond

  • Offers high thermal stability and controlled porosity for enhanced coolant penetration.
  • Suitable for precision grinding of steel and carbide with minimal tool wear.

• Electroplated Bond

  • Provides maximum abrasive exposure, making it ideal for aggressive, high-speed profile grinding.
  • Typically used in one-off production runs or specialized applications requiring intricate geometries.

Recommended Operating Parameters

• Grinding Speed – Typically 20–35 m/s, depending on material hardness and bond type.
• Coolant Use – Highly recommended (oil-based for tool grinding, water-based for glass and ceramics) to enhance tool life and prevent overheating.
• Feed Rate – Controlled to ensure consistent material removal without excessive wear.
• Dressing – Minimal due to the high form retention properties of the superabrasive structure.

Conclusion

The 4B2 dish grinding wheel is a high-precision, durable tool engineered for sharpening, profiling, and finishing ultra-hard materials. Its dish-shaped design, combined with advanced diamond or CBN abrasives, ensures maximum efficiency, superior surface finish, and extended tool life.

With its wide range of applications, from cutting tool regrinding to glass and ceramic machining, the 4B2 wheel is an essential tool for industries requiring high-precision grinding solutions.