Alumina Grinding Media
Description
Technical Parameters
Products Description
The alumina grinding medium is made from high-purity calcined alumina powder through precision molding and high-temperature sintering. Due to its extremely high chemical stability, alumina ceramics can minimize pollution during the grinding process in different industrial processing environments, maintain dimensional stability, and reduce the frequency of downtime and maintenance.
Our HUAO products cover four standard alumina purity grades, ranging from 92% to 99.5%, using two forming processes: isostatic pressing and rolling forming, which can adapt to different working conditions such as coarse crushing, fine grinding, and equipment wear-resistant lining. Unlike ordinary low purity alumina media on the market, our product strictly controls the content of impurities such as iron oxide, optimizes the grain structure through precise sintering processes, and achieves the best balance between surface hardness and internal toughness.
Advantage
1. Meet the wear resistance requirements of the entire production line
Our product line can meet the wear resistance requirements of the entire production line from raw material crushing, fine grinding to pneumatic conveying. Customers can complete the procurement of all wear-resistant consumables through us, reducing the communication cost of multi supplier docking, ensuring the matching performance between the medium and lining, and avoiding abnormal wear caused by mismatched material properties.
2. Extend the lifecycle cost of equipment
The alumina grinding medium is made of high-purity alumina through controlled molding and high-temperature sintering, forming a dense microstructure that can withstand continuous impact and friction. Even over longer production cycles, material loss remains extremely low, helping to maintain stable grinding efficiency while reducing the frequency of media replacement.
3. Low pollution, high product purity
Alumina ceramics have stable chemical properties and do not react with most processing materials. Wear debris is also composed of alumina, which does not introduce heterogeneous impurities, ensuring the color and performance stability of the final product. It is particularly suitable for production scenarios that require high material whiteness and purity.
4. Stable consistency between batches
We have established a complete production quality control system. From raw material inspection to finished product delivery, each link has strict testing standards to ensure that the performance deviation between different batches of products is controlled within 2%. A stable wear rate and grinding performance can keep the production process in a stable state for a long time, reduce the frequency of process parameter adjustments, and lower the difficulty of production management.
Application
In the cement industry, our Huaao products are applied in multiple stages of cement production: in the grinding system, alumina grinding balls are used as grinding media to reduce wear loss per ton of cement and improve the stability of cement particle size distribution; During the transportation of materials, the use of alumina wear-resistant ceramic lining can extend the service life of equipment from a few months to over 3 years.
In the coal mining industry, our alumina ceramic balls are widely used in coal mill inlet and outlet, primary air duct elbow, powder separator and other components. Compared with the original ordinary steel pipe, the service life has been increased by 5-7 times, reducing the frequency of pipeline replacement and shutdown maintenance. Meanwhile, alumina grinding medium can also be used for grinding desulfurization limestone powder in power plants, with low wear and no impurity pollution, ensuring the activity of the desulfurizer.
In the metal mining industry, using alumina grinding media instead of traditional steel balls can reduce iron pollution in concentrates, which is particularly important for non-metallic minerals such as kaolin, calcium carbonate, and quartz sand. Meanwhile, the low wear rate reduces the medium consumption cost per ton of ore.
In the ceramic and refractory materials industry, alumina grinding medium is the standard grinding medium for ceramic raw materials and glazes. Its low wear rate ensures the whiteness and purity of ceramic products, avoids black spots and color differences caused by iron impurities, and improves the product's qualification rate.
Technical Specifications
| Brand | HA-92 | HA-95 | HA-99 | HA-99.5 |
| AL2O3(%) | ≥92 | ≥95 | ≥99 | ≥99.5 |
| Fe2O3(%) | ≤0.2 | ≤0.15 | ≤0.1 | ≤0.05 |
| Bulk density(g/cm³) | ≥3.20 | ≥3.40 | ≥3.50 | ≥3.60 |
| Packing density(g/cm³) | 1.8 | 1.85 | 2 | 2.1 |
| Unit compressive Strength(13mm/N) | ≥5000 | ≥5500 | ≥6000 | ≥7000 |
| Water Absorption(%) | ≤5 | ≤5 | ≤5 | ≤5 |
| Color | White | White | White | White |
| Noted:
Customized specifications such as water absorption rate, special particle size, and content formula can be developed according to the working conditions of customers. All customized products will be validated through batch testing before mass production. |
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Production and Quality Control System
HUAO has established a comprehensive quality control system that covers raw material inspection, production process control, and finished product delivery testing to ensure that each batch of products meets standard requirements.
Each batch of our raw materials must undergo component testing and particle size analysis before entering the factory. During the production process, we implemented digital management of key parameters. We will control the ingredient accuracy within 0.1%, monitor the sintering temperature curve in real-time, and control the temperature deviation within ± 5 ℃. Every production process is inspected by technical personnel, and semi-finished products that do not meet the requirements will be promptly screened out.
Each batch of finished products undergoes strict performance testing before leaving the factory. The testing items include core indicators such as appearance size, bulk density, water absorption rate, compressive strength, and wear rate. Only products that meet all standards can be packaged and stored.
Also, we reserve samples for each batch of products, which can be traced back to the production raw materials, process parameters, and testing data of that batch of products.
Why choose us?
As a professional manufacturer of industrial alumina ceramic products for many years, we are committed to providing customers with systematic wear-resistant solutions, rather than just a single product supply.
We have an independent R&D and technical service team that can provide targeted solution designs based on the actual work situation of our clients. Unlike most suppliers who only sell standard products, we can recommend the most suitable product grade and installation plan based on the on-site wear and tear provided by customers to achieve the best cost-effectiveness. For customers who are using alumina grinding media for the first time, we can provide video guidance and debugging services to help them quickly get started and achieve the expected results.
We have a large-scale production base and stable production capacity to meet the supply needs of customers with high annual consumption. Long term cooperative customers can enjoy preferential long-term supply prices and priority delivery rights, so there is no need to worry about production delays caused by shortages of goods.
At the same time, we have a comprehensive after-sales service system. If any quality or technical issues arise during use, we will respond within 24 working hours and provide timely solutions.
fAQ
Q1: How to choose the correct ball size?
A1: The appropriate diameter depends on the type of mill, feed particle size, grinding target, and operating conditions. Different ball sizes can also be combined to improve grinding efficiency.
Q2: Is alumina grinding media suitable for wet and dry grinding?
A2: Yes. It performs well in both wet and dry milling systems and maintains stable mechanical performance in different operating environments.
Q3: Will ceramic grinding media contaminate my products?
A3: Compared with traditional steel media, alumina ceramics introduce much fewer impurities, making them suitable for applications where product purity is important.
Q4: Can we provide customized specifications?
A4: Yes. The diameter, packaging method, and order quantity can be customized according to project requirements and transportation preferences.
Q5: How should grinding media be stored?
A5: Keep the product in a clean and dry environment to avoid severe impact during transportation, and inspect the packaging before installation to ensure optimal performance after delivery.
Welcome customized sizes and bulk orders!
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