High Purity Wa Micro Grits

Get High Purity Wa Micro Grits from China's Leading Supplier

RUISHI is the leading supplier of High high-purity wa Micro Grits in China, offering high-quality micro grits for various industrial needs. With exceptional purity and uniform size distribution, our product is perfect for precision grinding, polishing, and lapping. Trust our state-of-the-art manufacturing facility and strict quality control processes to improve your production efficiency. Contact us today for competitive pricing and place your order with RUISHI’s High Purity Wa Micro Grits.

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    Introducing High Purity Wa Micro Grits from RUISHI

• Chemically stable and insulative, used for consolidation and coated abrasives, wet & dry blasting sand, crystal/electronics precision grinding, and high-level refractory materials
• Suitable for producing higher hardness/tensile strength material (e.g., alloy steel, high-speed steel & high carbon steel)
• Used to make contacting media material, insulator & precise casting sand
• Available in two purity levels: Na2O 0.3% & Low soda Na2O 0.05%
• Packing options include 1000kg/1250kg bulk bags, Bulk bags on pallets, 25 kg woven bags in bulk bags, 25 kg paper bags on pallets

High Purity Wa Micro Grits
High Purity Wa Micro Grits

Specification sheet for the High Purity Wa Micro Grits

ItemAl2O3 %Fe2O3 % maxSiO2 % maxNa2O % max

Fused Alumina Abrasives Micro Grits Size

FEPA SIZEAverage grain size (μm)
ds3 (μm) max            ds50 (μm)      ds94 (μm) min
F 23077                       55.7 ± 3.038
F 24068                       47.5 ± 2.032
F 28060                               39.9 ± 1.525
F 32052                         32.8 ± 1.519
F 36046                         26.7 ± 1.514
F 40039                          21.4 ± 1.010
F 50034                          17.1 ± 1.07
F 60030                           13.7 ± 1.04.6
F 80026                           11.0 ± 1.03.5
F 100023                            9.1 ± 0.82.4
F 120020                            7.6 ± 0.52.4

FEPA abrasives micro size distribution

Settlement pipe particle size analysis

Abrasives micro size distribution Japan standard JIS#240~10000

Settlement pipe particle size analysis method(μm)Electric-resistivity grain counter method(μm)
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    Quality Control

RUISHI ensures high-quality white fused alumina (WFA) through systematic testing procedures like Laser Diffraction Analysis and X-ray Fluorescence (XRF) Analysis. They maintain consistency using Statistical Process Control (SPC) and Total Productive Maintenance (TPM) methods. With digital record-keeping, including test results and deviations, RUISHI prioritizes OSHA safety regulations. Investing in advanced technology and strategic partnerships, they strive to enhance quality.

Certificates Obtained

1SO 9001:2015
1SO 9001:2015
REACH Registration Certificate
REACH Registration Certificate
Management System Certification
Management System Certification
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    Applications for High Purity Wa Micro Grits

Applications of High Purity Wa Micro Grits include:

a) Grinding wheels, cutting wheels, and abrasive discs

b) Fine sandblasting for items like mobile phone covers

c) Polishing and use in abrasive paper and belts

Applications for High Purity Wa Micro Grits
Why Choose Our High Purity Wa Micro Grits
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    Why Choose Our High Purity Wa Micro Grits

• Our WA micro grits are produced to high purity levels, providing consistent particle sizes for predictable results.
• They have a broad range of applications and offer superior performance with excellent cutting abilities.
• Experts in the field recommend WA micro grits for their proven effectiveness and reliability.

Related Product Recommendation

Exploring High Purity WA Micro Grits: The Ultimate Guide

High Purity White Aluminum Oxide (WA) micro grits are inorganic compounds primarily used for precision grinding, lapping, and polishing applications across various industries. With their high hardness and friability, these grits are renowned for their excellent cutting abilities and durability. The versatility of WA micro grits allows them to be employed in a wide range of processes, from surface finishing of delicate electronic components to more rigorous applications such as the cutting and shaping of hard, brittle materials. Understanding the properties and benefits of high-purity WA micro grits is crucial to harnessing their full potential. This guide seeks to delve deep into the world of these micro grits, exploring their production process, classifications, and application areas in detail.

What is High Purity WA Micro Grits?

What is High Purity WA Micro Grits?

Understanding the Composition of WA Micro Grits

High Purity White Aluminum Oxide (WA) micro grits are synthesized through the fusion process of high-quality bauxite, iron-free hard coal, and small amounts of soda in an electric arc furnace at high temperatures. This process results in a transparent, crystalline material with high hardness and sharp edges. The fused mass is then cooled, crushed, and classified into different grit sizes. The pureness of WA micro grits (over 99% Al2O3) contributes to their superior hardness, second only to diamonds, and their high melting point. Their white color is the result of their low iron content, which also makes them suitable for applications that require iron-free, contaminant-free abrasives. These technical properties make WA micro grits an ideal choice for precision grinding, lapping, and polishing applications.

Applications and Uses of High-Purity WA Micro Grits

High Purity WA Micro Grits find their use in a variety of applications, owing to their hardness, purity, and sharp-edge properties. Some of the critical areas of application include:

  1. Precision Grinding: Owing to their high hardness and sharpness, WA micro grits are often used for precision grinding of hard and brittle materials such as glasses and ceramics.
  2. Lapping and Polishing: Their high purity and low iron content make WA micro grits ideal for lapping and polishing applications where iron contamination is not permissible.
  3. Abrasive Blasting: In abrasive blasting operations, WA micro grits are used to clean and prepare surfaces for coating, bonding, or other finishing processes.
  4. Coated and Bonded Abrasives: These micro grits are used in the production of coated and bonded abrasives like grinding wheels and sandpaper.
  5. Microdermabrasion: In cosmetics, due to their gentle abrasive property, WA micro grits can be used in microdermabrasion treatments to exfoliate and remove dead skin cells.
  6. Advanced Ceramics: In the manufacturing of advanced ceramics, WA micro grits are used as a raw material due to their high melting point and purity.

Advantages of Utilizing High Purity WA Micro Grits

Utilizing High Purity WA Micro Grits in various applications brings about several advantages, including:

  1. High Cutting Efficiency: Due to their sharp-edge properties and high hardness, these micro grits provide superior cutting efficiency.
  2. Minimal Contamination: Their high purity and low iron content reduce the risk of contamination during application, ensuring the integrity of the final product.
  3. Versatility: These grits are suitable for a wide range of applications, from precision grinding to cosmetic treatments, reflecting their versatility.
  4. Durability: Due to their high melting point and hardness, WA micro grits exhibit exceptional durability, even under intense use.
  5. Cost-effectiveness: Despite their high performance, WA micro grits are relatively economical, enhancing cost-effectiveness for businesses.
  6. Environmental friendliness: As a natural mineral product, WA micro grits are environmentally friendly, posing less of a threat to our ecosystem compared to synthetic alternatives.

Quality Standards for WA Micro Grits

Quality standards for WA Micro Grits are vital to ensure consistency in their functionality and performance across the varied applications. Some essential measures include:

  1. Particle Size Uniformity: Ensuring a consistent particle size distribution is crucial. It affects the grit’s cutting efficiency and surface finish. Various methods, such as laser diffraction or dynamic light scattering, are used to measure and maintain particle size uniformity.
  2. Purity Levels: High-purity WA Micro Grits must have a minimum purity level of 99%, ensuring minimal contamination. The presence of impurities can reduce the grit’s effectiveness and potentially interfere with its application.
  3. Hardness: The hardness of the micro grits, often measured on the Mohs scale, should be consistent to ensure optimum performance in cutting and abrasive tasks.
  4. Melting Point: Given its use in high-temperature applications, the grit’s melting point is another quality standard to be maintained. This ensures the spirit retains its structure and function even under extreme conditions.
  5. Environmental Impact: The grits should meet environmental regulations, including being free from heavy metals and other hazardous substances. This ensures they remain an environmentally friendly abrasive solution.

By adhering to these standards, manufacturers can ensure that their WA Micro Grits are of high quality, offering reliable performance and value to their users.

Message Detail: How do you inquire about High Purity WA Micro Grits?

When inquiring about high-purity WA Micro Grits, it is essential to communicate your specific application needs effectively. Begin by outlining your requirements in terms of particle size uniformity, purity levels, hardness, melting point, and environmental compliance. Make sure to request documentation to verify the grit’s compliance with these standards. Ask about the methods and technologies employed to ensure consistency in these parameters. Additionally, it may be helpful to inquire about their quality control measures, including any certifications they may hold. These could include ISO certification or compliance with specific industry standards. Lastly, do not forget to discuss the quantity you require and any particular packaging needs. It will help the supplier provide you with the most accurate quote and lead time.

Characteristics of High Purity WA Micro Grits

Characteristics of High Purity WA Micro Grits

Description of High Purity WA Micro Grits

High Purity WA Micro Grits are fine particles that are predominantly made up of white alumina. Renowned for their durability and hardness, these grits are often used in abrasive blasting, surface preparation, and for manufacturing high-quality refractory products. They possess a high melting point and exceptional thermal properties, making them suitable for use in high-temperature applications. The purity of these grits refers to the absence of any impurities or foreign materials, which can potentially affect their performance. High Purity WA Micro Grits are typically subject to rigorous quality control measures and are compliant with environmental regulations, making them a reliable and eco-friendly abrasive solution.

Chemical Composition of WA Micro Grits

The primary component of WA microgrits is Alumina (Al2O3), which typically constitutes around 99% of their composition, providing the high hardness and thermal resistance these grits are known for. The remaining 1% is usually a mix of trace elements such as Silicon Dioxide (SiO2), Iron Oxide (Fe2O3), and Titanium Dioxide (TiO2). These impurities, while present only in negligible amounts, can still influence specific characteristics, such as the color of the grits. Note that the exact composition may vary slightly depending on the manufacturing process and source of the alumina.

Size and Particle Size Distribution of WA Micro Grits

High Purity WA Micro Grits come in a range of sizes, typically measured in micrometers (µm). The size of the grits can significantly influence their abrasive performance and suitability for different applications. Smaller nerves, with dimensions less than 10 µm, are often used for delicate surface treatment processes where a fine finish is desired. Conversely, larger nerves, with dimensions of 50 µm or more, are ideal for robust surface preparation tasks that require a more aggressive approach.

The particle size distribution (PSD) refers to the proportions of grits of different sizes within a sample. It’s an essential factor as it impacts the grits’ overall performance, efficiency, and the finish of the workpiece. A narrow PSD, where the majority of the spirits are of a similar size, ensures a uniform and consistent surface finish. On the other hand, a broad PSD featuring a wide range of grit sizes can be advantageous in specific applications where a varied finish is required. This diversity allows High Purity WA Micro Grits to cater to a wide array of industrial applications, each with distinct requirements and specifications.

Quality Assurance in WA Micro Grits

Quality assurance is a vital aspect of high-purity WA microgrits manufacturing, ensuring that every batch meets stringent standards of consistency, purity, and performance. Rigorous testing procedures are implemented, starting from the raw material selection to the final product. These tests include spectroscopy for elemental analysis, laser diffraction for particle size determination, and microscopy for studying morphological characteristics. Moreover, international standards like ISO 9001 are adhered to, guaranteeing that the grits are produced under a quality management system. Through such meticulous quality control, users can be confident in their choice of high-purity WA microgrits, knowing that each particle will perform optimally in their specific application.

Supplier Detail: Choosing the Right Source for High-Purity WA Micro Grits

When selecting a supplier for High Purity WA Micro Grits, it is crucial to consider several key factors to ensure the highest quality and performance for your specific needs. Firstly, the supplier should have a proven track record for delivering products consistent in size distribution and purity. Verification of their adherence to international standards, such as ISO 9001, could provide reassurance of their commitment to quality. Secondly, the supplier’s capability to cater to your volume requirements while maintaining consistency is another important consideration. Lastly, it’s critical to examine the supplier’s customer support and technical assistance capabilities. Are they able to provide timely responses and effective solutions when needed? Can they provide technical guidance tailored to your specific application? By considering these factors, you can choose a high-purity WA microgrits supplier that not only meets your quality and performance standards but also contributes to the efficiency and success of your operations.

RUISHI: A Reliable Supplier of High Purity WA Micro Grits

RUISHI, as an established and reputable supplier of High Purity WA Micro Grits, is the epitome of reliability and professionalism. With a robust quality management system that is ISO 9001 certified, RUISHI ensures the consistent delivery of grits exhibiting uniform size distribution and exceptional purity. Their impressive production capacity allows them to fulfill volume requirements while maintaining product quality and consistency. RUISHI also boasts of superior customer support and technical assistance, offering timely and effective responses to customer inquiries and issues. Their technical team is adept at providing expert guidance specifically tailored to various applications, thereby contributing to the efficiency and success of your operations. By choosing RUISHI, you are opting for a high-purity WA microgrits supplier that not only meets but also exceeds quality and performance expectations.

Benefits and Applications of High-Purity WA Micro Grits

Benefits and Applications of High-Purity WA Micro Grits

Surface Coating Applications of WA Micro Grits

High Purity WA Micro Grits find an array of applications in surface coating due to their exceptional purity and uniform size. Some of these applications are:

  1. Metal Surface Finishing: WA Micro Grits are extensively used in metal surface finishing, contributing to a smoother and cleaner surface, improving aesthetic appeal, and enhancing resistance to corrosion.
  2. Surface Roughening: In preparation for coating applications, WA Micro Grits are ideal for surface roughening, ensuring a stronger bond between the surface and the subsequent coating.
  3. Coating Adhesion: The grits play a crucial role in improving the adhesion of coatings, thus reducing peeling or chipping.
  4. Abrasive Blasting: They are often used in abrasive blasting techniques, providing an efficient method of removing surface contaminants.
  5. Heat Resistance Enhancement: The WA Micro Grits can be integrated into heat-resistant coatings, enhancing the ability of the substrate to withstand high temperatures.

Grinding and Precision Engineering Utilization of WA Micro Grits

High Purity WA Micro Grits also feature prominently in grinding and precision engineering applications. Their hardness and sharpness make them an excellent choice for grinding operations:

  1. Precision Grinding: WA Micro Grits are suitable for precision grinding processes, where they aid in achieving a high degree of surface finish and precision.
  2. Tool Sharpening: They are vital in tool sharpening procedures, ensuring sharp and durable tool edges, leading to improved efficiency and longevity of the devices.
  3. Abrasive Machining: In abrasive machining processes, WA Micro Grits facilitate the removal of material from a workpiece, thus achieving the desired shape or finish.
  4. Ceramic Grinding: Their hardness and fine grit size make them ideal for grinding ceramic materials, achieving a smooth and polished surface.
  5. Lapping Operations: WA Micro Grits are often used in lapping operations to obtain a flat or smooth surface, thereby enhancing the performance of the mechanical parts.

In conclusion, High Purity WA Micro Grits are versatile, serving as a powerful tool in both surface coating and precision engineering applications. Their extensive use testifies to their effectiveness and reliability in different industrial operations.

Abrasive Blasting with High Purity WA Micro Grits

High Purity WA Micro Grits are instrumental in abrasive blasting applications. Abrasive blasting is a robust technique widely used for surface preparation and cleaning, paint and rust removal, and overall surface refining:

  1. Surface Preparation: High Purity WA Micro Grits, with their exceptional hardness and sharpness, are ideal for preparing surfaces for coating or painting, ensuring optimal adhesion of the finishing materials.
  2. Paint and Rust Removal: These micro grits are effective at removing old paint, rust, and other contaminants from surfaces, providing a clean base for further treatment.
  3. Surface Refining: They are used to give a finished look to a surface or to create a specific surface texture. This is often done before applying a coating or paint to enhance the appearance and performance of the final product.

By using high-purity WA microgrits in abrasive blasting, industries can achieve desired surface conditions, thereby improving the overall quality and longevity of their products. However, it’s crucial to choose the right grit size for the task—coarser grits for heavy-duty blasting and finer ones for delicate operations—to ensure optimal performance and prevent unnecessary surface damage.

Polishing and Finishing Applications of WA Micro Grits

High Purity WA Micro Grits are also vitally utilized in polishing and finishing applications, contributing to the smoothness and luster of a broad array of products. These applications include:

  1. Metal Polishing: Micro grits are utilized in the polishing of various metals, including steel, aluminum, copper, and more. Their high hardness and sharpness allow them to effectively smooth and refine the metal surface, resulting in a high-gloss finish.
  2. Glass Polishing: The fine size of these micro grits makes them an excellent choice for polishing glass surfaces, from optical lenses to household glassware. They offer a high degree of control, mitigating the risk of damaging these delicate materials.
  3. Ceramic Finishing: High Purity WA Micro Grits are used in the finishing of ceramics, enhancing the surface quality and aesthetic appeal of ceramic products.
  4. Semiconductor Polishing: In the semiconductor industry, micro grits are employed to polish silicon wafers, which are essential for the production of integrated circuits. The precision offered by these grits ensures a flawless surface necessary for optimal semiconductor performance.

Using the right WA microgrit size in each application is crucial to achieving the desired finishing results without damaging the material’s surface. It’s always recommended to start with a larger grit size and progressively move to smaller ones for a finer finish. By methodically employing these micro grits, industries can effectively enhance the aesthetic and functional quality of their products.

Relevance of WA Micro Grits in Various Industries

WA Micro Grits hold a pivotal role across a multitude of industries, owing to their high precision and versatility in refining product surfaces.

  • Aerospace Industry: The stringent quality standards in the aerospace sector necessitate the use of WA Micro Grits for polishing critical components. Their application ensures the durability and longevity of pieces, which is vital in this industry. 
  • Automotive Industry: In automotive production, these grits are used to polish and finish a variety of parts, from engine components to the vehicle’s exterior. This results in enhanced aesthetics and performance, helping to meet the high consumer expectations in this sector.
  • Electronics Industry: The electronics industry, particularly manufacturers of intricate devices like smartphones, benefit from the precision of micro grits. They help achieve a high-quality finish critical to the functionality and design of the devices.
  • Jewelry Industry: In the jewelry industry, WA Micro Grits provides an effective means of polishing precious metals and gemstones to achieve a brilliant finish, which is a crucial selling point.

Choosing the appropriate WA Micro Grit size is instrumental in achieving the desired finish without causing damage to the material. Starting with a larger grit size and gradually moving to smaller ones ensures a smooth and polished surface. These industries benefit significantly from the application of WA Micro Grits, enhancing both the aesthetic and functional quality of their products.

Manufacturing and Production of High Purity WA Micro Grits

Manufacturing and Production of High Purity WA Micro Grits

Raw Material and Production Process of WA Micro Grits

White Aluminum Oxide (WA), a high-purity synthetic mineral, serves as the primary raw material in the production of WA Micro Grits. The production process begins with the fusion of high-quality bauxite, iron fillings, and charcoal in an electric arc furnace at temperatures exceeding 2000°C. This results in a block of crystallized white alumina, which is then cooled and crushed into varying grit sizes. Further processing, including shaping and grading, is conducted to produce micro grits with precise profiles to suit specific applications. Quality control measures such as particle size analysis and hardness testing are integral to ensure the consistency and purity of the final product. The resulting WA Micro Grits exhibit exceptional hardness and toughness, making them ideal for a wide range of industrial applications.

Quality Control Measures in Manufacturing WA Micro Grits

Quality control in the manufacturing of WA Micro Grits is a stringent process that involves several steps to ensure product consistency and reliability. These measures start from the very beginning with the careful selection of raw materials, providing their high purity and quality characteristics. Once the initial fusion and crystallization processes are complete, each batch undergoes meticulous particle size analysis. This step verifies that the grits fall within the specified size ranges and are uniform in distribution.

Hardness testing is another critical component of quality control, ensuring the grits exhibit the required toughness for their intended industrial applications. This test is conducted using industry-standard methods, such as the Mohs hardness scale, which measures the resistance of a material to being scratched.

Furthermore, regular checks are carried out during the shaping and grading processes to ensure the micro grits maintain their precise profiles. As the final step, samples from each batch are taken and subjected to rigorous inspection to confirm the overall quality and performance standards. Any deviation from the predefined standards triggers an immediate investigation for corrective action. This robust quality control protocol enables the production of reliable, premium quality WA Micro Grits that satisfy the exacting demands of various industries.

Advancements in WA Micro Grits Production Technology

In recent years, significant advancements have been made in WA Micro Grits production technology. Central to these advancements are developments in automated manufacturing systems, which enhance precision, increase production rate, and reduce human error. Laser diffraction technology, for instance, has revolutionized particle size analysis, offering real-time, accurate measurements that significantly improve quality control. Similarly, the introduction of high-performance separation technologies, such as centrifugal air classifiers, has enabled finer grading of micro grits, ensuring a more uniform product. Sophisticated hardness testing machines have also been introduced, offering a more accurate and reliable method for determining grit toughness compared to the traditional Mohs scale. These advancements underscore a commitment to continuous improvement and innovation in the production of WA Micro Grits, ensuring they remain at the forefront of industrial abrasive technology.


SHANDONG RUISHI ABRASIVE CO., LTD is a renowned manufacturer and supplier of high-quality WA Micro Grits based in Shandong, China. With several decades of industry experience, the company has honed its production techniques and quality control measures, resulting in a well-deserved reputation for reliability and excellence. The company operates a state-of-the-art production facility equipped with cutting-edge technology, including automated manufacturing systems, laser diffraction technology, and sophisticated hardness testing machines. This enables them to achieve exceptional precision and quality in their products. The company prides itself on its commitment to continuous improvement and innovation, regularly investing in research and development to stay at the forefront of the abrasive industry. Their WA Micro Grits are highly sought after in various industries, including automotive, aerospace, and electronics, due to their consistent performance and durability.

Chemical Stability and Resistance in WA Micro Grits

WA Micro Grits exhibit superior chemical stability and resistance, which largely contributes to their high performance in rigorous industrial applications. Being composed predominantly of alumina (Al2O3), these abrasives are inherently resistant to most chemical reactions. Their stability remains consistent at varying temperature conditions, enhancing their ability to maintain structural integrity under stress. Moreover, they resist interaction with acids and alkalis, which makes them suitable for applications in chemically demanding environments. It’s crucial to highlight that the chemical robustness of WA Micro Grits extends their lifespan, reduces wear and tear, and ultimately results in cost-effective operations for industries using these abrasives. Further research is being conducted to improve these properties and expand the potential applications of WA Micro Grits.

Comparative Analysis: High Purity WA Micro Grits vs. Other Abrasives

Comparative Analysis: High Purity WA Micro Grits vs. Other Abrasives

Comparing WA Micro Grits with Silicon Carbide

When compared to Silicon Carbide (SiC), a commonly used abrasive, WA Micro Grits display distinguishable characteristics in terms of hardness, durability, and chemical stability:

  • Hardness: WA Micro Grits, composed primarily of alumina (Al2O3), exhibit higher hardness than Silicon Carbide abrasives. This difference in hardness contributes significantly to the superior cutting, grinding, and polishing efficiency of WA Micro Grits.
  • Durability: WA Micro Grits are more durable and, therefore, less prone to breakage and fragmentation during usage. This extends their lifespan and reduces the frequency of abrasive replacement, leading to cost savings in the long run.
  • Chemical Stability: As discussed earlier, WA Micro Grits resist interaction with most chemicals, including acids and alkalis, making them ideal for use in chemically demanding environments. Silicon Carbide, on the other hand, is less chemically stable and might not perform as effectively in such conditions.

This comparative analysis of WA Micro Grits and Silicon Carbide highlights the key areas where WA Micro Grits exhibit superior performance, affirming their applicability and efficiency in various industrial applications.

White Aluminum Oxide (WA) vs. Brown Fused Aluminum Oxide (BFA)

When evaluating White Aluminum Oxide (WA) and Brown Fused Aluminum Oxide (BFA), it’s essential to note their distinct properties and applications:

  • Purity: WA is considered to be purer than BFA, with a higher alumina content. This results in the white color of WA, compared to the brown hue of BFA, which is caused by the presence of small amounts of iron, titanium, and silicon.
  • Hardness and toughness: While both WA and BFA show excellent hardness ratings, BFA tends to be more challenging, making it more suitable for tasks that require a balance of high resistance and durability, such as heavy-duty grinding.
  • Heat resistance: WA has better heat resistance than BFA. This makes it a preferable abrasive for applications that generate high thermal stress, like precision grinding.
  • Applications: Due to its characteristics, WA is commonly used in applications that require high purity and sharp cutting features, such as in the aerospace industry or for medical and dental systems. BFA, due to its toughness and lower cost, is often used in more general applications, including metal fabrication and welding.

By understanding the fundamental differences between WA and BFA, users can better select the abrasive that best suits their specific needs and applications.

Advantages of WA Micro Grits over Conventional Abrasives

White Aluminum Oxide (WA) Micro Grits offer several advantages over conventional abrasives, including:

  • Superior Cutting Efficiency: WA micro grits have a higher cutting efficiency. Their sharp, angular shape provides a more aggressive cut and allows for precise, clean cuts, especially in precision grinding applications.
  • High Purity: WA micro grits are made of high-purity alumina, which not only reduces contamination but also improves the quality of the finished product.
  • Outstanding Heat Resistance: Their exceptional heat resistance makes them an ideal choice for applications involving high temperatures.
  • Long-Lasting: WA micro grits exhibit excellent durability, providing stable performance even under demanding usage conditions.
  • Versatility: Due to their unique properties, WA micro grits can be used in a wide range of applications, from aerospace and automotive to medical and dental systems.

By leveraging these advantages, industries can enhance their operations, improve product quality, and achieve better overall performance.

Suitability of WA Micro Grits for Specific Manufacturing Processes

White Aluminum Oxide (WA) Micro Grits demonstrate remarkable suitability for several specific manufacturing processes:

  • Precision Grinding: Thanks to their superior cutting efficiency and precision, WA micro grits are ideal for high-precision grinding operations, such as those needed in the aerospace and automotive industries.
  • High-Temperature Processes: Their outstanding heat resistance makes WA micro grits ideally suited for manufacturing processes that involve high temperatures, such as specific metallurgical procedures.
  • Abrasive Blasting: The durability and sharpness of WA micro grits make them a top choice for abrasive blasting operations, which require abrasives that can withstand intense pressure and use.
  • Polishing and Finishing: The high purity of WA micro grits results in less contamination, making them a popular choice for polishing and finishing operations, particularly in industries such as medical and dental, where purity is paramount.

By choosing WA micro grits for these specific manufacturing processes, industries can optimize their operations, ensuring high-quality output and efficient performance.

Impact of WA Micro Grits on Surface Roughness and Precision

The impact of White Aluminum Oxide (WA) Micro Grits on surface roughness and precision is substantial and transformative. Firstly, the inherent toughness and friability of WA micro grits contribute to lower surface roughness. This means that treated surfaces have fewer irregularities, providing a smoother finish that is highly desirable in precision-intensive industries. Secondly, WA micro grits’ uniform size distribution ensures greater precision in abrasive operations. The consistency of the grit size minimizes fluctuations in the abrasion process, providing a more predictable and controlled material removal. This ultimately leads to a higher degree of accuracy in the final product dimensions, a critical factor in industries such as aerospace, automotive, and medical, where even the slightest deviation can have significant implications. Therefore, the use of WA micro grits can dramatically enhance both the surface quality and precision in various manufacturing processes.


  1. High-purity WA micro grits – TOPWAY INDUSTRIES MATERIAL: This source provides a detailed explanation of high-purity WA micro grits and their applications. It focuses on their chemical stability and insulativity.
  2. SiC Industries – Washington Mills: This website is the home of a major North American producer of silicon carbide macro grits, microgrits, powders, and sub-micron powders, offering an in-depth look at their production process.
  3. White and Brown Aluminium Oxide Sandblasting Media – Richard Ren on LinkedIn: This LinkedIn article discusses the use of brown fused aluminum oxide powder or grits as sandblasting media, providing an overview of the applications of abrasive materials.
  4. Friction and wear characteristics of agglomerated diamond – ScienceDirect: An academic paper that explores the attributes of agglomerated diamond (AD) grits, a new type of friable abrasive.
  5. Tammy Duquette’s Post on LinkedIn: A LinkedIn post from an industry professional discussing the production of high-quality macro and micro grit material.
  6. Quantitative investigation of abrasive grit size dependency – ResearchGate: A research paper that presents a quantitative evaluation of abrasive grit size dependency of subsurface damages on Zerodur glass-ceramic substrates.
  7. Pacific Northwest National Laboratory – ARPA-E: This source provides information about the methods to extract rare earth elements and platinum group metals efficiently, offering a different perspective on the use of abrasives in the extraction process.
  8. Automated Mineralogy Laboratory – Colorado School of Mines: This laboratory website gives an insight into the preparation stages involving cutting, mounting, polishing, and coating, which is relevant to the use of high-purity WA micro grits.
  9. Kraft pulp mill dregs and grits as permeable reactive barrier – PubMed: An academic paper discussing the use of kraft pulp mill alkaline residues as material for PRB, providing context on the recycling and repurposing of abrasive materials.
  10. Microgrit – Washington Mills: This source offers detailed information about the types of micro grits produced by Washington Mills, one of the world’s largest silicon carbide manufacturers.

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Frequently Asked Questions

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Q: What is white fused alumina (WFA)?

A: White fused alumina (WFA) is a high-quality, synthetic mineral that is produced by fusing industrial alumina in an electric arc furnace at high temperatures. It is renowned for its purity and controlled crystal structure, making it suitable for a wide range of applications in various industries.

Q: Can you provide a brief description of white fused alumina?

A: White fused alumina is a dense, white crystalline product derived from and industrial alumina calcined in arc furnace under carefully controlled conditions. It possesses high purity, excellent chemical stability, and precise particle size distribution, making it an ideal choice for abrasive and refractory applications.

Q: What is the particle size range of white fused alumina?

A: White fused alumina is available in a wide range of particle sizes, typically from fine powders to large grits. Common particle size ranges include 240 mesh to 2 mm, catering to diverse industrial requirements.

Q: How does the chemical composition of white fused alumina impact its applications?

A: The chemical composition of white fused alumina, predominantly consisting of aluminum oxide (Al2O3), plays a crucial role in determining its physical and chemical properties. This composition ensures high strength, excellent resistance to corrosion, and suitability for various abrasive, refractory, and industrial applications.

Q: What are the key details to consider when choosing a supplier for white fused alumina?

A: When selecting a supplier for white fused alumina, it is important to assess factors such as product quality, adherence to ISO standards, production capabilities, reliability, and customer support. Zhengzhou Haixu Abrasives Co., Ltd. stands out as a reputable supplier, offering high-quality white fused alumina backed by extensive industry expertise.

Q: How does the quality of white fused alumina relate to its intended applications?

A: The quality of white fused alumina directly impacts its performance in applications such as abrasives, refractories, and surface preparation. High-purity, well-graded white fused alumina enhances work efficiency, provides precise surface finishes, and ensures optimal results across a wide range of uses.

Q: Can white fused alumina be used as a blasting media?

A: Yes, white fused alumina is widely utilized as a blasting media due to its exceptional hardness, durability, and precise particle size distribution. It is a preferred choice for sandblasting applications, effectively removing surface impurities, rust, and corrosion while providing a consistent and high-quality finish.

Q: How does the strength of white fused alumina make it a suitable abrasive for various applications?

A: The inherent strength and hardness of white fused alumina make it an ideal abrasive for applications such as grinding, cutting, polishing, and surface preparation. Its superior abrasion resistance, combined with a consistent crystal structure, ensures reliable performance across different materials and substrates.

Q: Can white fused alumina be used in coated abrasives and resin-bonded grinding wheels?

A: Yes, white fused alumina is commonly integrated into coated abrasives such as abrasive paper, sanding discs, and grinding belts, as well as resin-bonded grinding wheels. Its exceptional toughness and uniform particle size distribution make it a preferred choice for achieving precise and efficient material removal in various surface finishing and shaping applications.

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