High Alumina Ball
Description
Technical Parameters

Products Description
High alumina balls are divided into two main types:
High alumina inert filler ball
This type focuses on inertness and structural stability. It has ultra-low water absorption and high compressive strength, and can be used as a supporting bed in chemical reactors, tower packing, and catalyst beds. It can prevent catalyst loss, optimize gas-liquid distribution, and resist corrosion from acids, bases, and organic solvents. The size ranges from 3mm to 50mm, maintaining structural integrity under long-term static loads and temperature fluctuations.
High alumina grinding ball
This type is designed specifically for efficient grinding, emphasizing wear resistance and impact toughness. It has a smooth, dense surface and uniform particle size, making it very suitable for fine grinding in ball mills, vibration mills, and tank mills. It is superior to traditional steel balls and ordinary ceramic balls in terms of grinding efficiency and service life. The size range is 10mm to 90mm, and wet and dry grinding process specifications can be customized for the ceramic, mining, and building materials industries.
Advantages
1. Excellent wear resistance and long service life
High alumina balls have a dense corundum crystal structure and a Mohs hardness of 9, far exceeding steel balls (Mohs 6.8) and ordinary ceramic balls. Its ultra-low wear loss (≤ 0.015 g/kg · h) reduces the frequency of replacement. In grinding applications, its service life is 2-3 times that of steel balls, greatly reducing long-term operating costs.
2. Energy saving and efficient
As a grinding medium, high alumina balls can reduce the load of the mill by 20% compared to steel balls. It has increased grinding efficiency by 15% -20%, shortened grinding time, and saved more than 15% of power per ton of processed material. In chemical reactors, its uniform spherical shape optimizes fluid flow, reduces energy consumption in material circulation, and improves reaction efficiency.
3. Excellent chemical and thermal stability
Alumina has high purity and low impurity content, and can resist corrosion from most acids, alkalis, organic solvents, and high-temperature gases. It maintains stable performance at temperatures up to 1200 ° C and does not deform or crack under rapid temperature changes. Its inertness avoids chemical reactions with materials, prevents product contamination, and ensures the purity of the final product.
4. Accurate size and uniform quality
Strict production and screening processes ensure precise dimensional tolerances and uniform density for each ball. There are no irregular shapes or internal defects to avoid medium breakage or uneven wear during use. Batch consistency ensures stable performance in continuous industrial production and reduces unexpected downtime.
Application
High alumina balls are a multifunctional medium widely used in multiple heavy industries, solving the core pain points of wear, corrosion, and low efficiency.
1. Petrochemical industry
As an inert packing ball, it fills fixed bed reactors, absorption towers, and distillation towers. It supports catalysts, optimizes gas-liquid contact, and resists corrosion from petroleum based chemicals and high-temperature gases. It can also serve as a heat storage medium in high-temperature furnaces, improving energy utilization efficiency.
2. Ceramic building materials industry
As a grinding ball, it is used for grinding ceramic raw materials, glazes, and cement clinker in ball mills. Its high hardness ensures fine grinding, improving the fineness and quality of the product. It reduces grinding time and energy consumption, lowering production costs for ceramic and cement manufacturers.
3. Metallurgy and mining industry
In mineral processing, it grinds ore into fine powder for subsequent separation. Its wear resistance can reduce medium loss and ore pollution. In metallurgical furnaces, as a refractory support medium, it can withstand high temperatures and slag erosion, extending the service life of the furnace.
4. Environmental Protection and New Materials Industry
In exhaust gas treatment, it serves as a carrier for denitrification and desulfurization catalysts, capable of withstanding corrosive flue gas. In the production of new materials, it grinds high-purity powders of electronic ceramics and lithium battery materials to ensure the purity and fineness of the powders.
Technical Data
|
Materials |
Density (g/cm³) |
Bulk weight (kg/cm³) |
Moh's hardeness |
Crushing rate(%) |
Abrasion loss(g/kg.h) |
|
Alumina grinding media |
3.6-3.8 |
2200-2300 |
9 |
<1-3 |
0.09 |
|
High chromium steel ball |
7.6-7.8 |
4500 |
6.8 |
<1-3 |
0.18 |
Basic Information
|
Brand |
HA-92 |
HA-95 |
|
AL2O3(%) |
≥92 |
≥95 |
|
Bulk density(g/cm³) |
≥3.60 |
≥3.65 |
|
Hardness(Mohs) |
9 |
9 |
|
Wear Loss(%) |
≤0.015 |
≤0.012 |
|
Water Absorption(%) |
≤0.01 |
≤0.01 |
|
Color |
White |
White |
|
Size |
13-90mm |
|
|
Size can be customized according to customer's requirement |
||
FAQ
Q1: What is the difference between high alumina balls and ordinary ceramic balls?
A1: High alumina balls have an alumina content of 92% -99%, high density, excellent wear resistance and corrosion resistance. Ordinary ceramic balls use ordinary clay with low alumina content, poor wear resistance, and easy corrosion. High alumina balls are suitable for industrial scenarios with high temperature and high wear, while ordinary ceramic balls are only suitable for low demand applications.
Q2: Can I customize the size?
A2: Yes. We offer standard sizes and fully customized special requirements, including ultra small (1-3mm) and ultra large (100-150mm) sizes. Contact our team to understand your specific parameters and obtain a tailored solution.
Q3: What is the minimum order quantity (MOQ)?
A3: The minimum order quantity for bulk orders is 1 ton. We also accept small trial orders (100kg-1 ton) for performance validation to help you test quality before bulk purchasing.
Q4: How to package the product to avoid damage?
A4: For small orders, use 25kg moisture-proof woven bags lined with plastic. Batch orders are packaged in 1MT bags with reinforced straps and pallets. All packaging is labeled with product specifications and batch numbers for easy traceability.

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