Views: 222 Author: Wendy Publish Time: 2025-11-17 Origin: Site
Content Menu
● Dragon Abrasives Group Limited
● Manufacturing Process of Aluminum Oxide Grain
>> Raw Material Preparation and Melting
>> Purification and Surface Treatment
● Other Top Aluminum Oxide Grain Manufacturers
>> Xinxiang XYZ Abrasives Co., Ltd.
>> Shandong Haoyuan Abrasives Co., Ltd.
>> Henan Rongguang Abrasives Co., Ltd.
>> Luoyang Dahua Abrasives Group Co., Ltd.
>> Zhejiang Debang Abrasives Technology Co., Ltd.
>> Henan Zhongyuan Abrasives Co., Ltd.
>> Xinxiang City Best Abrasives Co., Ltd.
>> Shanghai Yufa Abrasives Co., Ltd.
>> Shanghai Zhenyuan Abrasives Co., Ltd.
● Applications of Aluminum Oxide Grain
● Selecting the Right Aluminum Oxide Grain Manufacturer
● FAQ
>> 1. What are the main types of aluminum oxide grain?
>> 2. How is aluminum oxide grain manufactured?
>> 3. What industries benefit from aluminum oxide grains?
>> 4. Can aluminum oxide grain sizes and properties be customized?
>> 5. What certifications should an aluminum oxide grain manufacturer have?
China is a major global supplier of aluminum oxide grain, a fundamental abrasive material highly valued in grinding, polishing, cutting, and surface treatment across various industries. Aluminum oxide grain is prized for its hardness, durability, and adaptability in applications such as bonded abrasives, coated abrasives, sandblasting, and refractory products. This article provides an in-depth look at the top 10 aluminum oxide grain manufacturers in China, emphasizing their production capabilities, product quality, and technological innovation. Dragon Abrasives Group Limited ranks first as the leading producer renowned for its extensive expertise and global market reach.
Founded in 2013 and headquartered in Zhengzhou, Dragon Abrasives Group Limited leads the Chinese aluminum oxide grain industry. The company operates multiple specialized factories producing brown fused alumina, white fused alumina, single crystalline alumina, zirconia alumina, and silicon carbide grains. This comprehensive production capability enables them to offer a diverse range of aluminum oxide grains meeting stringent international standards.
Dragon Abrasives' portfolio includes brown, white, pink, and black fused alumina as well as advanced microcrystal and single-crystal fused alumina specifically engineered for superior grinding efficiency and long tool life. They serve over 60 countries, providing raw materials for abrasives like grinding wheels, abrasive papers, cutting wheels, and polishing tools. The company emphasizes stringent ISO 9001 quality certification, advanced automated production lines, and innovative research to improve abrasive performance continuously.
Their aluminum oxide grains are employed in bonded abrasives for metalworking, coated abrasives for surface finishing, and refractory materials used in high-temperature applications. Dragon Abrasives also offers OEM services customized to client specifications, bolstered by strong technical support and stable supply chains that enhance their global competitiveness.
The production of aluminum oxide grain involves several advanced technological steps to ensure particle purity, size uniformity, and shape consistency, crucial to abrasive performance.
High-purity bauxite ore containing aluminum oxide is the raw material. The ore undergoes processing to remove impurities before being melted in electric arc furnaces at temperatures around 2000°C. This fusing process creates fused alumina granules with high hardness and crystallographic stability.
Molten aluminum oxide is then atomized under inert gas conditions such as high-pressure nitrogen to form grains. This process creates particles with uniform grain size typically ranging from submicron to several hundred microns depending on application needs. Controlled cooling ensures the grains have the desired crystalline structure and minimal defects.
After solidification, the abrasive grains are classified by size and shape using advanced centrifugal and cyclone classifiers. This multi-stage grading ensures narrow particle size distributions that are vital for precise abrasive grinding and polishing applications.
Certain grades undergo chemical purification to remove residual impurities and enhance surface properties. Some aluminum oxide grains receive surface treatments such as coating with stearates or resins to improve bond strength when embedded in abrasive tools.
Comprehensive testing ensures that aluminum oxide grains meet standards in hardness, friability, purity, and particle size distribution. Modern production plants utilize automated inspection technologies to maintain consistent high quality.
Known for producing high-purity fused alumina with customizable grain sizes and enhanced bonding properties, Xinxiang XYZ serves specialized abrasive markets with tailor-made solutions.
Focuses on bonded abrasive grains targeted at grinding wheels, cut-off wheels, and blasting abrasives with an emphasis on product stability and performance consistency.
Offers a diversified suite of aluminum oxide grains, including brown, white, and pink alumina grades optimized for various grinding and polishing functions.
A veteran supplier of fused alumina products widely used in coated abrasives and refractory sectors, providing steady quality and international distribution.
Specializes in precision aluminum oxide grains for surface finishing applications, with advanced fractioning technology for uniform particle size.
Recognized for its thorough control over grain morphology and size uniformity, supporting high-performance abrasive manufacturing.
Produces microcrystalline aluminum oxide grains favored in high-speed grinding and polishing scenarios requiring sharp abrasion and low wear.
Supplier of white and brown fused alumina with a variety of grain sizes used in cutting, grinding, and sandblasting manufacturing processes.
Offers multiple grades of aluminum oxide grain designed for bonded and coated abrasive product development with reliable performance metrics.
Aluminum oxide grain is widely employed across multiple industries due to its excellent abrasive properties. Key applications include:
- Metalworking: Grinding and polishing steel, stainless steel, and non-ferrous metals.
- Automotive: Brake pads, grinding discs, and surface finishing components.
- Aerospace: Precision grinding for turbine blades and structural parts.
- Electronics: Polishing wafers and electronic components.
- Glass and Ceramics: Sandblasting and surface finishing applications.
- Refractories: High-temperature resistant linings and insulation materials.
When choosing a supplier, consider quality certifications like ISO 9001, product consistency, ability to customize grain size and shape, availability of technical support, and track record in meeting delivery requirements. Leading companies like Dragon Abrasives excel in providing tailored solutions while ensuring supply chain reliability.
China's aluminum oxide grain manufacturers have attained global prominence through technological innovation, strict quality control, and comprehensive product ranges. Dragon Abrasives Group Limited leads this sector with a broad spectrum of aluminum oxide grains and an established international footprint. Other notable companies also contribute substantially to the global abrasive industry, offering diverse products crafted for specific industrial applications. Together, these manufacturers uphold China's reputation as a reliable and advanced supplier of high-quality aluminum oxide grain.
The primary types are brown fused alumina, white fused alumina, pink fused alumina, and specialized microcrystalline and single-crystal alumina grains. Each possesses unique hardness and thermal stability tailored for different abrasive purposes.
It is produced by melting high-purity bauxite in electric arc furnaces, atomizing the molten material with inert gases, followed by particle size grading, purification, and quality testing to ensure ideal abrasive properties.
These grains serve metal fabrication, automotive, aerospace, electronics, glass finishing, and refractory industries due to their exceptional toughness and durability.
Yes, most manufacturers offer extensive customization options concerning grain size distribution, shape, purity, and surface treatment to optimize abrasive tool performance.
Manufacturers should have ISO 9001 quality management certification and industry-specific approvals to demonstrate adherence to quality and environmental standards.
[1](https://patents.google.com/patent/CN103464772A/en)
[2](https://patents.google.com/patent/CN1040634A/en)
[3](https://whitecorundum.com/about-us/)
[4](https://www.usitc.gov/sites/default/files/publications/701_731/pub5581.pdf)
[5](https://www.domill.com/The-Complete-Overview-to-Brown-Fused-Alumina-and-Its-Role-in-the-Abrasives-Industry.html)
[6](https://www.usitc.gov/publications/701_731/pub3643.pdf)
[7](https://www.abrasivematerials.saint-gobain.com/products/macro-aluminum-oxide-materials/ma88-monocrystalline-alumina-grains)
[8](https://becens.en.made-in-china.com/product/OdEGaCAZbKtQ/China-Self-Sharpening-Single-Crystal-Aluminum-Oxide-SA-Abrasive-Grain-for-Resin-Bonded-Grinding-Wheels.html)
[9](https://www.alibaba.com/price-comparison/china-aluminium-oxide-grains-factory)
[10](https://www.accio.com/supplier/custom-aluminium-oxide-grinding-manufacturer)
