Please be more specific, if you expect a meaningful reply.

Reinhard H. Wöhlbier ■

Ball Mills refer to wide range of products. Since you have asked about how to design your own ball mill, I am assuming that you are talking about a laboratory, small scale jar rolling mill. My company manufactures these small units with 24" length rollers, adustable spacing between the rollers, variable speed and a built in digital readout of the roller speed. However, you may be looking for a little help in making your own. You might try this link for a free set of instructions for making a very simple jar rolling mill - www.digitalfire.com/gerstleyborate/ballmill/

Note that this unit does not meet OSHA standards and you should build a box around this unit to keep fingers out of the pinch points - especially the belt and sheaves!

If you are looking for a larger unit, please feel free to contact me for additional information.

Barry Fuller

Paul O. Abbe ■