grinding ball

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price: Negotiable
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Delivery term: The date of payment from buyers deliver within days
seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-17 02:41
Browse the number: 182
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The alumina grinding ball
The alumina grinding ball has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories, cement factories, enamel factories and glasswork owing to the excellence of high density, high hardness, high wear resistance. During the abrasive/grinding processing, ceramic balls will not break up, it will not pollute the grinded material as well.
Type:According to the content of aluminum:55-65%、65-75%、92%、95%
According to the specification:ф19mm-ф60mm
We may act according to the customer the request manufacture.
Wear-resisting main technical parameter of ball
Al2O3Content proportion don’t hardness compression strength absorbing water rate wearing and tear rate
55-65-95% 2.7-2.7-3.7g/mm3 ≥8.5 ≥1690MPa ≤0.2% 0.05%


Main Technical Parameter
Compression Resistance stress Validweight Intenerate Temperature Fire Resistance Channel Density Refire Shrinkage
≥500kg/CM2 0.1MPa-1450℃ ≥1790℃ ≤21 ≤0.1%

Physical Functions
product Name Proportion g/cm3 Wearing and tear rate g/kg.h Water absorption % Grade Mohs Hardness
high Aluminum ceramic balls 3.2-3.5 ≤0.3 ≤0.05 6
middle Aluminum ceramic balls 2.5-2.7 ≤0.5 ≤0.2 7
corundum nitride ball 2.8-2.9 ≤0.4 ≤0.05 8
Ceramic Balls 2.2-2.4 ≤5.0 ≤0.5 6

Chemistry Functions
product Name Al2O3 (%) SiO2 (%) Fe2O3 (%) other (%)
high Aluminum ceramic balls 75-95 24-4 <0.3 0.7
middle Aluminum ceramic balls 55-65 40-30 <0.5 4.5
corundum nitride ball 60-70 35-25 <0.5 4.5
Ceramic Balls 19-23 76-72 <0.5 4.5
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