Abrasive Grains

Your Professional Abrasive Grains Supplier

Master Abrasive is a leading Chinese manufacturer specializing in the production of high-quality abrasive materials and related tools. We are committed to delivering superior and consistently reliable products at competitive prices.

Rich Experience

Established in 2000, our factory, Jin Jing Chuan Abrasive, has accumulated over two decades of experience in manufacturing abrasive materials.

Free Samples

We offer complimentary samples to new customers for product evaluation.

Competitive Price

We provide high-quality and stable abrasive materials and related tools at highly competitive prices.

Sales Market

Our products are distributed globally, with a presence in key markets including the United States, Japan, Europe, South America, and various regions across Asia.

Black Silicon Carbide
Name: Black Silicon Carbide (Emery Grain)
Main Composition: SiC: 99%
Grains and Micro Powder: F12-F1200 for bonded
P12-P2500 for coated
More than 25...
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Green Silicon Carbide
Green Silicon Carbide (GC)
Main Composition: SiC: 99%
Grain and Powder: F12-F1200 on FEPA standard
JIS12-JIS6000 on JIS standard
Standard: FEPA, JIS, ANSI,...
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Brown Fused Alumina
Brown Fused Alumina, Brown Aluminium Oxide (A)
Main Composition: AL2O3: 95%min
Grain and Powder: F12-F1200 for bonded
P12-P2500 for coated
Standard: FEPA, JIS,...
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White Fused Alumina
White Fused Alumina, White Aluminium Oxide (WA)
Main Composition: AL2O3: 99%
Grain and Powder: F12-F1200 for bonded
P12-P2500 for coated
Standard: FEPA, JIS,...
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Black Silicon Carbide for Coated
Black Silicon Carbide for coated application
Main Composition: SiC: 99%
Grain and Powder: P12-P2500 for coated
Standard: FEPA, ANSI, DIN
Reliable supplier, good...
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Pink Fused Alumina
Pink Fused Alumina, Pink Aluminium Oxide, (PA)
Main composition: AL2O3, Cr2O3
Grain and Powder: F12-F1200 for bonded
P12-P2500 for coated
Standard: FEPA, JIS,...
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Calcined White Fused Alumina
Calcined White Fused Alumina, Calcined White Aluminium Oxide (CWFA)
Main Composition: AL2O3: 99%
Grain and Powder: F24-F120 for bonded
P24-P120 for coated...
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Coated WFA
Products: Calcined White Fused Alumina, Calcined White Aluminium Oxide (CWFA)
Main Composition: AL2O3: 99%
Grain and Powder: F12-F220 for bonded
P12-P220 for coated...
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Zirconia Fused Alumina
Product: Zirconia Fused Alumina, (ZA)
Main composition: Zirconia, Alumina
Grain: F12-F220 for bonded
P12-P240 for coated
Customer requested sizes are...
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Blue Ceramic Abrasive Grains
Blue Ceramic Abrasive (BCA) is produced by Sol-gel method.
Specific Gravity (g/cm3): ＞3.91.
Crystal Size (μm): ＜2.
Hardness (Hv): 2000-2200.
Main composition:...
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Tabular Alumina
Product: Tabular Alumina, Tabular Corundum
Main composition: Alumina (Al2O3), Aluminum oxide.
Size: All customers’ requested sizes are available.
Packing: woven bags,...
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Parameter

Grit Size	Chemical Composition % (by weight)
Grit Size	SIC	F.C	Fe₂O₃
12#-90#	≥98.50	≤0.15	≤0.15
100#-220#	≥98.50	≤0.15	≤0.15
240#-600#	≥98.00	≤0.15	≤0.15
800#-1000#	≥98.00	≤0.20	≤0.20
1200#--1500#	≥97.50	≤0.20	≤0.20

Types of Abrasive Grains

The abrasive grains produced by our company mainly include the following types:

Black Silicon Carbide

Black Silicon Carbide (SiC), also known as Carborundum, emery grain, is mainly made from petroleum coke and quartz sand, to high temperatures in a large open Acheson furnace.

Green Silicon Carbide

Green Silicon Carbide (GC), is mainly made from petroleum coke, quartz sand, wood chips and salt to high temperatures in a big open Acheson furnace.

Brown Fused Alumina

Brown Fused Alumina (BFA), also known as Brown Aluminium Oxide, is produced by the smelting of Calcined Bauxite in an electric arc furnace at temperatures more than 2000°C.

White Fused Alumina

The abrasive tools made of it are suitable for the grinding of carbon steel, high speed steel and chilled steel. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.

Applications of Abrasive Grains

Woodworking

Abrasive grainswork to smooth wooden surfaces, as well as give the wooden surfaces a more appropriate look to receive colors that one desires to apply on the wood.

Metalworking

In the manufacturing of grinding wheels and sanding beltsthe abrasive grains eliminate the formation of rust, rough edges, and burrs in the formation of smoother metal surfaces.

Other Applications

Abrasive grains are also used in such areas as automotive repair, construction, and jewelry, for use such as polishing, sharpening, and shaping.

Mechanical Properties of Abrasive Grains

Hardness

It is measured as the ability of a mineral to scratch or be scratched (scratch resistance). The Mohs hardness scale determines a hardness range from 1 = Talc to 10 = Diamond. On this scale, the position indicates that this mineral is capable of scratching at its immediate inferior, but cannot scratch at its immediate superior.

Tenacity

It is measured as the ability to absorb energy, that is, to resist impacts under the action of shock efforts without losing the cutting power. The toughness of the mineral allows it to break the cohesion forces between the fibers of the support material. The toughness of the support material is understood as the breaking strength.

Friability

It is measured as the capacity that the grain of ore has to fracture during the operation when it loses the cutting power, thus creating new cutting edges (self-sharpening).

Abrasive Grain Manufacturing Process

● Prepare abrasive grains: Crush lumps of abrasive material into smaller chunks

● Sort abrasive grains by size: Use screens with decreasing mesh sizes to separate the grains

● Mix abrasive grains with bond material: Use feldspar and clays as bond materials

● Add porosity media: Use filler materials like walnut shells or moth ball crystals to create voids in the finished wheels

● Moisten the mixture: Use water or another temporary binder to help the wheel stick together

● Press the mixture: Use a mold built into a press

● Dry and fire the mixture: Bake at a high temperature

● Finish the mixture: Perform quality control

Ways to Use Abrasive Grains Effectively

Even Pressure:

Pressure should be smooth so as not to cause the gouging or sanding uneven. Excessive pressure tends to cause early fatigue of the grains and may result in perpendicular unilateral damage on the workpiece.

Right Grit Size:

First, use a course variety in the greater degree of abrasion and progressively lower ranges in the subsequent steps. Choosing the right gritfor the given job guarantees that the material is cut away effectively and in the right manner.

Consistent Speed:

One should not apply excessive pressure on the material during sanding or grinding and should not sand or grind at high speed. If the speed is too high, it leads to the formation of heat and grain wear and if the speed is low, the rate of cutting is also slow.

Storage Considerations for Abrasive Grains

Temperature

Exposure to extreme temperatures can cause the bond between the abrasive grains and backing material to weaken. As such, it is crucial to store coated abrasives in a temperature-regulated environment. You can use temperature-resistant containers to store the abrasives and prevent atmospheric temperature increases from affecting them. You can also place the tools in a cool place or install air conditioners in the storage area.

Humidity

High humidity can cause the abrasives to absorb moisture, which can weaken the bond between the abrasive grains and backing material. As such, it is essential to store coated abrasives in an area with low humidity. Ensure you invest in storage containers that are humidity resistant. You can also use dehumidifiers to keep the storage conditions dry.

Light

Not all types of light can damage coated abrasives, but it is important to keep them away from direct sunlight. The ultraviolet rays in the sun's rays can cause the grains to break down and reduce the performance of the tools. To navigate this, you can store your tools in a dark place or use light-resistant containers. You can also install light filters in the storage area to reduce the amount of UV rays reaching your tools.

Dust and Grit

Dust and grit can cause the abrasives to clog, reducing the performance of the tools. To avoid this, you can use containers with tight lids or install filter systems in the storage area. You can also clean the tools thoroughly before and after use with an air gun or a sanding belt and disc-cleaning stick.

Packaging and Shipping

Packaging	25kgs or 20kgs kraft paper bag, barrel on pallet, or according to customers' request
Shipping	We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

Our Factory

Master Abrasive is a professional manufacturer of the abrasive materials in China. We focus on providing the good stable quality abrasive materials and related abrasive tools with competitive price. More than 23 years experience in the abrasive industry, we will be your reliable and trustable partner.

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FAQ

Q: What do abrasive grains do?

A: The abrasive grain is a mineral particle, previously ground, sieved, heat treated and subsequently anchored and fixed to a support. The abrasive grain performs the function of starting, cutting or scratching the surface by mechanical or manual action.

Q: What are the shapes and forms of abrasive grains?

A: Abrasive grains come in a variety of shapes and forms, including blocks, needles, flakes, etc. These shapes and forms affect their grinding performance.

Q: How does the brittleness of abrasive grains affect the use effect?

A: The brittleness of abrasive grains determines the way they break during the grinding process and the grinding efficiency. abrasive grains with greater brittleness are easier to break, forming finer grinding edges, thereby improving grinding efficiency.

Q: How to choose the right abrasive grains?

A: Choosing the right abrasive grains requires considering factors such as the hardness, toughness, and grinding requirements of the workpiece material. For example, for workpiece materials with higher hardness, abrasive grains with higher hardness should be selected.

Q: How does the particle size of abrasive grains affect the grinding effect?

A: The particle size of abrasive grains directly affects the roughness of the grinding surface and the grinding efficiency. abrasive grains with finer particle sizes can obtain smoother grinding surfaces, but the grinding efficiency is lower; abrasive grains with coarser particle sizes have higher grinding efficiency, but the grinding surface is rougher.

Q: What are the main components of abrasive grains?

A: The main components of abrasive grains include conventional abrasives such as aluminum oxide (Al₂O₃), siliconized carbon (SiC), boron carbide, and super-hard abrasives such as artificial diamond and cubic boron nitride.

We're well-known as one of the leading abrasive grains manufacturers and suppliers in China. Please feel free to buy high quality abrasive grains made in China here from our factory. For price consultation, contact us.

polishing machining, abrasive shapes, grinding items