In the grinding process of the planetary ball mill, the grinding balls play a very important role. The operation of the equipment drives the ball mill tank and gives energy to the grinding balls in the tank. The grinding balls impact, squeeze and rub the sample to complete the crushing and grinding of the sample.

In fact, the nano planetary ball mills are usually equipped with grinding balls of different sizes to grind samples. Why is this? According to experimental studies, the grinding effect and efficiency will be greatly improved by rationally configuring grinding balls of different sizes. This is mainly because the functions of large balls and small balls are different.

Grinding balls with large diameters have greater mass and produce greater grinding energy, making it easier to crush samples. Grinding balls with small diameters, although their energy is relatively smaller, are smaller in size. It generates more collisions in the same grinding space and increases the contact area with the sample. The grinding effect is more significant, which can help to achieve fine grinding of sample materials. The two complement each other, making the effect and efficiency of the planetary grinding ball mill even better.