The diamond grinding wheel is made by welding or cold-pressing the diamond segment on the metal substrate; the diamond segment is made of diamond and other metal powders, sintered by cold pressing and hot pressing, and then welded on the bowl-shaped metal substrate. Diamond grinding wheels are usually installed on concrete grinders for grinding concrete, granite, marble and other stones etc.
Diamond grinding wheels are available in different models and specifications to meet different application needs. General use is for grinding concrete, stone, paints, glues, epoxies and other floor coatings.
The diamond segments have different matrixes, different particle sizes and different diamond concentrations; the matrix can be divided into hard, medium, soft, etc.; the particle size is divided into coarse, medium, and fine; so their quality and use are different.
When we choose diamond grinding wheels, we can choose some suitable ones according to our own purposes; for example, when grinding some hard ground, we should choose soft matrix grinding wheels; if it is softer ground, we can choose harder carcass.

For diamond grinding wheels with different roughness, we should also choose the right one when choosing the particle size. Generally, when performing rough grinding, we should choose a grinding wheel with a soft carcass and a high-quality grinding wheel. Granularity can choose large granularity. Such as 16#, 20# or 30/40# for grinding, choosing such a suitable grinding wheel can improve work efficiency; fine grinding, we can also call it polishing, we can choose a grinding wheel with hard carcass and fine particles, the particle size is 80#-120#, other finer particle sizes can also be selected according to grinding requirements.