There are several types of ball mills used in nanotechnology:
Planetary Ball Mills: These mills consist of multiple grinding jars arranged on a rotating sun wheel. The jars rotate around their own axis, producing a high-energy impact. Vibratory Ball Mills: These mills use vibration to achieve the grinding motion, which is suitable for small-scale applications. Attritor Ball Mills: These mills use a stirred media to achieve fine particle size reduction, suitable for high-energy milling.