Q:What is ​A diamond blade?

​A:A diamond blade is a  saw blade  which has diamonds fixed on the blade's base to use the diamonds to cut hard or abrasival materials. There are many types of diamond blades, and they have been applied in many industries, for example, construction industry to cut stone, concrete, asphalt, bricks, glass and ceramics, IT industry to cut semiconductor materials, and gem industry to cut gem stones including diamonds.

Q:How many types of diamond blades are there?


Diamond blades can be categorized by their shape, use, and manufacturing method.

Types by shape

If categorized by their style, diamond blades are available in different types: circular saw blades, gang saw blades and band saw blades.

Circular diamond saw blades are commonly sighted and the most widely used. Most diamond blades are of this style.

A diamond gang saw blade is a long steel plate with diamond segments  welded on it. Normally, a group (tens or even hundreds) of diamond gang saw blades are used together to saw raw stone blocks.

A diamond band saw blade is a flexible closed steel band with diamonds fixed (often via the electroplating method) on the teeth of one side of the band.

Types by use

If categorized by use, there are marble diamond blades, granite diamond blades, concrete diamond blades, asphalt diamond blades, general purpose diamond blades, masonry diamond blades, gem cutting diamond blades, etc.

Types by manufacturing method

There are many methods to attach diamonds onto the saw blade's base . A common method is sintering the mixture of diamonds and metal powders are formed to the blade's cutting edges -- diamond segments, and the produced diamond blades can be called sintered metal-bonded diamond blades. Other methods include electroplating, vacuum brazing, extruding and so on.


Q:What are diamond &CBN grinding wheels?

A: Diamond grinding wheels are abrasive tools with a surface coated or impregnated with diamond particles. Diamonds, being the hardest known material, provide exceptional cutting and grinding performance. These wheels are typically used for grinding hard and brittle materials that would quickly wear down conventional abrasives.

Applications of Diamond Grinding Wheels:

  • Tool and Cutter Grinding: Sharpening and precision grinding of carbide tools and cutters.
  • Glass and Ceramic Processing: Grinding and shaping glass, ceramics, and other brittle materials.
  • Aerospace and Automotive: Machining of hard alloys and composites used in critical components.

 Cubic Boron Nitride (CBN) grinding wheels are made with CBN, the second hardest material after diamonds. While CBN is slightly less hard than diamond, it offers superior performance when grinding ferrous (iron-based) materials.


Applications of CBN Grinding Wheels:

  • Tool and Die Making: Precision grinding of hardened tool steels and die materials.
  • Automotive Industry: Grinding camshafts, crankshafts, and other high-performance engine components.
  • Aerospace Industry: Machining aerospace alloys and components where heat resistance and precision are critical.



Comparing Diamond and CBN Grinding Wheels:

  • Material Compatibility: Diamond wheels excel in grinding non-ferrous and hard, brittle materials, while CBN wheels are superior for grinding ferrous metals and high-temperature alloys.
  • Hardness: Diamond is the hardest material, making diamond wheels extremely efficient for specific tasks, while CBN's slightly lower hardness makes it more suitable for high-temperature applications.
  • Cost: Generally, diamond wheels are more expensive than CBN wheels due to the cost of diamond material. However, the choice between the two should be based on the material being ground and the specific requirements of the grinding task.


Diamond and CBN grinding wheels are essential tools in the world of precision grinding, each offering unique advantages for different materials and applications. Understanding the properties and applications of these wheels can help you choose the right tool for your specific grinding needs, ensuring optimal performance and efficiency in your operations. Whether you're working with hard metals, ceramics, or high-performance alloys, there's a diamond or CBN grinding wheel tailored to meet your exact requirements.