colloid mill can grinding peanut, almond, green bean, soybean, sesame, chilli, etc. so also called peanut butter making machine, almond grinding machaine, green bean milling machine, soybean paste making machine, chilly sauce making machine, etc. 

The colloid mill machine use Germany advanced heat treatment process, hardness reach 70HRC, more wear resistance, corrosion resistance, and not rust. 

The grinding mesh number according to your machine, usually bigger model grinding peanut butter or sesame paste will be more fine.