A wheel sharpener grinding wheel is often applied to people's lives, Grinding wheel shape can be divided into level grinding wheels, bevel grinding wheel, cylindrical grinding wheel, cup wheel, disc wheel; Grinder grinding wheel usually work at high speed, thus turning test should be carried out before using (to ensure that the wheel at the highest speed, not break) and static balance test can be divided into ceramic grinding wheel, resin grinding wheel, rubber wheel, metal grinding wheel binder. The characteristic parameter of the cutting wheel main abrasive, viscosity, hardness, binding agent, shape, size and so on. Grinder wheel is the main raw material for manufacturing wheel, it is responsible for cutting work. Therefore, the abrasive must be sharp, and have a high hardness, good heat resistance and a certain toughness.