1. Confirm the diameter

The most common sizes most of the customers use is 4″, 5″, 7″, but you may also can see a few people use 4.5″, 9″, 10″ etc unnormal sizes. It base on your individual demand and the angle grinders you use.

2. Confirm the bonds

Generally diamond cup wheels have different bonds, such as soft bond, medium bond, hard bond according to the hardness of the concrete floor. To put it simply, soft bond diamond cup grinding wheel  for concrete is sharp and suitable for floor with high hardness, but it is short life. Hard bond concrete grinding cup wheel for concrete has good wear resistance and low sharpness, which is suitable for grinding the floor with low hardness. Medium bond diamond cup wheel is suitable for concrete floor with medium hardness. Sharpness and wear resistance are always contradictory, and the best way is to maximize their advantages. Therefore, you need to confirm what kind of floor do you grind before choosing diamond cup grinding wheels.

3. Confirm the shapes of diamond segments.

Single row, double row, arrow, rhombus, hexagon, curved etc. The grinding efficiency of the arrow-shaped is higher than that of other shapes. It is especially suitable for grinding in the initial process, also can be used for removing some thin epoxy, coatings, paint etc. Single row, double row and turbo diamond grinding wheel for concrete are the most commonly used.

4. Confirm the number of diamond segments

diamond grinding cup wheels of different sizes have different number of diamond segments. The less segments number, more aggressive it will be, the more segments number, the longer lifespan it will be.

5. Confirm the connector types

5/8”-7/8”, 22.23mm, thread M14 and thread 5/8”-11

6. Confirm the grits

Generally we make grits from 6#~300#, the common grits such as 6#, 16#, 20#, 30#, 60#, 80#, 120#, 150# etc.

If you would like to know more about diamond cup wheels, welcome to our website www.bontai-diamond.com.