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Why do planetary ball mills use grinding balls of different sizes?

2023-04-20 5 min read

The grinding ball plays a crucial role in the grinding process of planetary ball mills.

The ball mill operates with animal materials and grinding balls, continuously exerting the energy of the grinding balls on the materials, thereby crushing or mixing them to an ideal state.

Many planetary ball mill users always have various sizes of grinding balls when receiving grinding balls from planetary ball mill manufacturers. Why do planetary ball mills use different sizes of grinding balls?

The experimental results show that the grinding effect and efficiency of balls of different sizes are better than those of single sizes. Using only small balls clearly results in low energy and efficiency. Using only a large ball, although it has high energy, it has fewer interactions with the same mass at the same time. Moreover, according to Davis' grinding ball wear hypothesis, the wear speed of the ball is proportional to its mass.

The planetary ball mill uses grinding balls of different sizes. The high energy of the large balls has a strong effect on the large materials, and the small balls are filled in the gaps between the large balls, which correspond to the different thicknesses of materials and improve the grinding efficiency. The two complement each other in order to improve the efficiency and effectiveness of planetary ball mills.

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Related products information:

laboratory planetary mills: https://www.tencan-mills.com/Planetary-ball-mill

Roll ball mill: https://www.tencan-mills.com/Roll-ball-mill/lab-roll-ball-mill

Stir ball mill: https://www.tencan-mills.com/Stir-ball-mill/lab-stir-ball-mill

Vibration ball mill: https://www.tencan-mills.com/Vibration-ball-mill/lab-vibration-ball-mill934

Please contact us anytime when you need support:
Changsha Tianchuang Powder Technology Company Limited
Web: https://www.tencan-mills.com/
Add: No.804, 2nd Building, No.68 Luositang Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province, P. R. of China 410100
Tel: 0086 73186394561
E-mail: [email protected]
Phone: +86 13548659522


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Changsha Tianchuang Powder Technology Company Limited, which was established in 2006, is located in Changsha City, Capital of Hunan Province, South-Centre part of People’s Republic of China. The Company is one of largest professional manufacturers in China engaging in design, manufacture, and sales of all kinds of lab ball mills. With rich experiences of hard work in the industry, all kinds of lab ball mills we designed and produced have many advantages such as impact machine model, flexible and simple operation, grinding with dry and wet materials, which can meet requirements of dispersed grinding of all laboratories and further greatly benefit enlarging experimental results to production machine.

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