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Changsha Deco Equipment Co.,Ltd

Con:Sandy Qiao

Add:Hunan Yueyang City Yueyang Tower No.29 Dongchong Road, Qijialing Street, Xueyuan Road





How to choose the right planetary ball mill and related grinding jars,media balls

1. To choose the right machine volume: 

Alumina bullk density: 1 g/cm3

Volume = Mass / Density = 1 / 1 =1


As the grinding material covers 1/3 of the mill pot volume, mill balls cover 1/3 of the mill pot volume, and the left 1/3 for grinding space.

The mill pot volume : 3 * 1 = 3 L 

We suggest 4L planetary ball mill machine. 

2. To choose suitable grinding jar and media balls:


He will use the machine to grind alumina powder. 

Considering less pollution, we suggest the following mill pots and mill balls:

   1. Alumina pot + alumina balls

   2. Zirconia pot + zirconia balls

   3. Alumina pot + zirconia balls


3. Grinding report:

Material: alumina powder

Alumina pot+zirconia balls

Grinding method: wet grinding: Solvent: alcohol

Feed size: 2-3mm

Feed quantity: 1kg

Rotation speed: 400 rpm

Grinding time: 6 hours

Discharging granularity: 4μm (4 micron)