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Wear Resistant Alumina Ceramic Classifier Wheel for Air Jet Mill

China Wear Resistant Alumina Ceramic Classifier Wheel for Air Jet Mill

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Wear Resistant Alumina Ceramic Classifier Wheel for Air Jet Mill

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Payment Terms	T/T
Supply Ability	100,000 ㎡/ year
Delivery Time	25-45 workdas
Packaging Details	Packed in wooden cases or iron racks
Density	3.65 g/cm3
Corrosion Resistance	High
Material	Alumina
Volume Resistivity	10^14 Ω·cm
Hardness	9 Mohs
Color	White
Rockwell Hardness	85 HRA
Tensile Strength	300 MPa
Thermal Conductivity	25 W/mK
Surface Finish	Polished
Brand Name	Elacera
Model Number	Alumina Ceramics
Certification	ISO9001-2015
Place of Origin	Changsha, Hunan, China

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Product Details
Company Details

Product Specification


Payment Terms	T/T	Supply Ability	100,000 ㎡/ year
Delivery Time	25-45 workdas	Packaging Details	Packed in wooden cases or iron racks
Density	3.65 g/cm3	Corrosion Resistance	High
Material	Alumina	Volume Resistivity	10^14 Ω·cm
Hardness	9 Mohs	Color	White
Rockwell Hardness	85 HRA	Tensile Strength	300 MPa
Thermal Conductivity	25 W/mK	Surface Finish	Polished
Brand Name	Elacera	Model Number	Alumina Ceramics
Certification	ISO9001-2015	Place of Origin	Changsha, Hunan, China

Product description

In the ultrafine powder processing industry, the stability of the classification system directly affects the particle size and purity of the final product. This is especially true in applications such as lithium battery materials and electronic ceramic powders, where control of metal contamination is extremely stringent. Traditional metal classifying wheels are prone to wear after prolonged operation and may introduce metallic impurities. Therefore, an increasing number of airflow milling machines are adopting ceramic classifying wheels as an alternative.

Ceramic classifying wheels are typically manufactured from a single piece of high-purity alumina or zirconium oxide. Ceramic itself has high hardness and good wear resistance, maintaining a low wear rate even under high-speed airflow impact and powder friction. This is particularly important when processing lithium battery cathode materials, as the material itself requires high purity, and any metallic impurities can affect the final performance.

In actual use, the material enters the classification zone with the airflow, and the high-speed rotation of the classifying wheel creates a centrifugal force field. Finer particles pass through the classifying wheel and enter the collection system, while coarser particles return to the grinding zone for further grinding. This process requires the classifying wheel to maintain dimensional stability over a long period; otherwise, the classification accuracy will gradually decrease. Ceramic materials, due to their low wear, more easily maintain stable classification results.

Compared to metal classifiers, ceramic classifiers offer another advantage: a smoother surface. Powder is less likely to adhere to the wheel surface, reducing material blockage and improving equipment efficiency. For powder processing plants requiring continuous production, this significantly reduces downtime for cleaning.

From a maintenance perspective, while ceramic classifiers have a slightly higher initial cost, their longer lifespan results in lower overall operating costs. Many users have found that replacement cycles are significantly extended and equipment operation is more stable after switching to ceramic classifiers.

Currently, these ceramic classifiers are widely used in classification systems for lithium-ion battery cathode materials, lithium iron phosphate, ternary materials, electronic ceramic powders, and fine chemical powders. The size and structure of the classifier can be customized to match various air jet mills, depending on the equipment model.

Product parameters

Parameter	Specification	Unit	Notes
Material	High-purity Alumina Ceramic	–	≥ 99% Al₂O₃
Hardness	≥ 15 Mohs	–	Excellent abrasion resistance
Density	3.8–3.9	g/cm³	–
Fracture Toughness	4–5	MPa·m^0.5	–
Operating Temperature	≤ 1200	°C	Suitable for continuous operation
Maximum Rotational Speed	≤ 3600	RPM	Depends on the air jet mill model
Wheel Diameter	150–400	mm	Customizable
Wheel Thickness	10–30	mm	Customizable
Particle Size Range	1–100	μm	Depends on classifier settings
Service Life	3–5 times metal wheels	–	Under normal operating conditions

Comparison: Alumina Ceramic Classifier Wheel vs Traditional Materials

Feature	Alumina Ceramic Classifier Wheel	Traditional Metal/Other Materials	Advantage
Material Hardness	≥ 15 Mohs	5–8 Mohs	Ceramic is significantly harder, resists wear and abrasion
Wear Resistance	Very high	Moderate	Reduces frequent replacements and downtime
Operating Temperature	≤ 1200°C	≤ 500°C	Ceramic withstands high temperatures, suitable for heat-generating powders
Service Life	3–5 times longer	Standard	An extended lifespan reduces operational costs
Particle Size Accuracy	Stable and precise	May degrade over time	Ensures consistent milling quality
Maintenance Frequency	Low	High	Less downtime and labor cost
Corrosion Resistance	Excellent	Poor	Ceramic is resistant to chemical corrosion
Cost Efficiency	Higher initial, lower long-term cost	Lower initial, higher long-term cost	Ceramic reduces overall maintenance and replacement costs
Contamination Risk	Low	Higher	Ceramic is inert, avoiding material contamination

Key Feature

High Wear Resistance: Alumina ceramic material resists abrasion, ensuring a long service life.

Precision Classification: Optimized design ensures accurate particle separation, improving product quality.
Corrosion & Heat Resistance: Ideal for materials that generate heat or contain reactive compounds.

Low Maintenance: Durable structure reduces replacement frequency and maintenance downtime.

Stable Performance: Maintains efficiency and accuracy even under continuous operation.

Advantages

Extended Lifespan: Compared to metal wheels, alumina ceramic wheels last 3–5 times longer.

Improved Milling Efficiency: Ensures consistent particle size, reduces material contamination, and improves output.
Cost-effective: Fewer replacements and reduced downtime save overall operational costs.

FAQ

Q1:What materials are compatible with this wheel?
A1:Suitable for powders like chemicals, minerals, and food additives. Avoid highly reactive chemicals that may corrode alumina.
Q2:How long is its lifespan?
A2: Typically, 3–5 times longer than traditional metal wheels under normal operating conditions.
Q3:Can it be customized for different air jet mills?
A3:Yes, we provide customized sizes and specifications to fit various air jet mill models.
Q4:Is it suitable for high-speed milling?
A4:Yes, the wheel is designed to handle high rotational speeds without performance loss.
Q5:How should I maintain the wheel?
A5:Minimal maintenance is required. Regular cleaning of powder residues is recommended to maintain accuracy.

Company Details

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Business Type:

Manufacturer 
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Year Established:

2015 
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Total Annual:

400-600
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Employee Number:

120~150 
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Ecer Certification：

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YIbeino New Materials focuses on the research and development of new wear-resistant ceramic materials and is committed to providing material conveying, pneumatic conveying system engineering design and equipment wear problems under various complex working conditions for cement, thermal power, steel,... YIbeino New Materials focuses on the research and development of new wear-resistant ceramic materials and is committed to providing material conveying, pneumatic conveying system engineering design and equipment wear problems under various complex working conditions for cement, thermal power, steel,...

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No. 2, Qingyuan South Road,Langli Industrial Park, Changsha County,Hunan Province
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