Straight:This kind of wheels have a simple, flat disc shape without any recesses, flaring or cups.

Cylinder:This kind of wheels refer to the long wheels with a simple, can shape without any recesses or cups. The length of the wheel is equal or greater than the thickness of the wheel.

Tapered:This kind of wheels have a thicker cross section at the bore, which becomes thinner or tapers toward the outer diameter.

Recessed:This kind of wheels have a sunken area on one side or both sides.

Straight cup:This kind of wheels have a cup, bowl or double cup shape.

Flaring cup:This kind of wheels have a cup or bowl shape.

Dish:Refers to wheels with a dish or saucer shape.

Relieved:This kind of wheels have a recessed area on one side or both sides.

Disc / Ring:Ring wheels have a donut or toroid shape. Ring or disc grinding wheels are mounted (bolted or cemented) to a backing plate, which drives the wheel.

Others:other specialty, proprietary or patented abrasive or abrasive product.

Cylindrical /Centerless:Used for grinding between centers of shafts, threaded shafts, large rolls, cams or similar components.

Internal /Bores:Generally, smaller diameter wheels or abrasive products are used for grinding or finishing the surface on the inner diameter of a part.

Surface/Creep-feed:It refers to abrasive products which are designed or suitable for the grindings of surface or creep-feed.

Toolroom/Sharpening:It refers to abrasive products which are designed or suitable for toolroom or precision grinding applications.

Cutting-off:It refers to abrasive products which are used for cutting.

Snagging:It refers to a form of rough grinding used to remove excess material without regard to surface finish.

Polishing:A wheel consisting of layers of fabric impregnated with abrasive and adhesive for polishing

Specialty:It refers to abrasive products designed or suitable for other specialty, proprietary or patented applications.

Aluminum Oxide:It is the most common industrial mineral in use today. Fused aluminum oxide is produced synthetically by melting bauxite and additive in an arc furnace to form a fused aluminum oxide ingots, which are later crushed and sized. The various types of fused aluminum oxides are distinguished by the levels of chemical impurities remained in the fused mineral. Fused aluminum oxide is available in several variations depending on composition and processing.

White Aluminum Oxide:White fused alumina is a kind of synthetic mineral with a high purity. It is the most friable grain in the fused alumina family.

Silicon Carbide:Silicon carbide (SiC) is a synthetic abrasive that was first developed in the late 1800s. It is harder than aluminum oxide, but more friable than grains of fused aluminum oxide. Typically, silicon carbide is used with nonferrous materials such as brass, aluminum, or titanium. The high solubility of carbon and silicon in iron would cause silicon carbide to react with an iron base alloy and result in poor grinding performance. Levels and types of impurities distinguish the green and black forms of silicon carbide. SiC's sharp and easily fractured abrasive grains are used for abrading other non-metals such as the stone, glass, wood, and leather. Like diamond, silicon carbide is susceptible to oxidation at higher temperatures.

Zirconia Alumina:It is a high performance abrasive which possesses the unique attribute of great toughness and the highest durability. The material is also able to withstand very high temperatures without the loss of utility. It possesses a good resistance to corrosion.

Ceramic Aluminum Oxide:Ceramic Aluminum Oxide is a self-sharpening grit that outperforms aluminum oxide in terms of hardness, toughness and life when used under identical conditions. It’s a new type of abrasive that was first invented and applied in 1983 by US company 3M, since then a variety of ceramic aluminum oxides have been developed.

Grinding Wheels:Grinding Wheels (B4C) is a grey-black colored super hard abrasive with metallic luster. It is one of the hardest man-made materials available in commercial quantities and has a finite melting point which is low enough to make it easier for fabrication into shapes.

Natural Abrasives:Ceramic aluminum oxide is a long-lasting, tough, dense abrasive due to its micro structure. The extremely small micron size particles break off during grinding, producing multiple new cutting edges. As it stays sharp, especially when used in medium and high pressure operations; it cuts at a higher rate than other abrasives. Recommended for use on difficult operating materials, such as aeronautic alloy, carbon steels high nickel steel, etc.

Combination:It refers to mix several kinds of abrasive grains together.

Specialty:Other specialty, proprietary or patented abrasive grain, grit or abrasive material.

Vitrified:Bonded abrasive product with a vitrified or glass bond system between the abrasive grains.

Resin:Bonded abrasive product with a resin, resinoid bond system between the abrasive grains.

Resin Reinforced:Bonded abrasive product with a reinforced resin bond system between the abrasive grains.

Rubber:Bonded abrasive product with a rubber or elastomer bond system between the abrasive grains.

Rubber Reinforced:Bonded abrasive product with a reinforced rubber or elastomer bond system between the abrasive grains.

Magnesite:Bonded abrasive product with magnesite bond system between the abrasive grains.

Shellac:Bonded abrasive product with a shellac bond system between the abrasive grains.

Plastic:Bonded abrasive product with a plastic bond system between the abrasive grains.

PVA:Bonded abrasive product with a PVA system between the abrasive grains.

Specialty:Other specialty, proprietary or patented bond type.

Soft:A-K

Medium:L-N

Hard:P-Y

Dense:It means the structure of abrasives is of high concentration.

Open:It means the structure of abrasives is of low concentration.

Dry:Abrasive products designed or suitable for dry grinding applications.

Wet:Waterproof abrasive products designed or suitable for grinding using a water or water-oil coolant mixture.

Dry/Wet:Abrasive products designed or suitable for both dry and wet grinding applications.