Pang Weicai expert team who will recommend the best configuration to help you grinding the powder of the highest purity and quality at the lowest cost The volume of ball mill jars are:0.1L,0.25L,0.5L,1L,1.5L,2L,2.5L,3L,4L,5L,10L,15L,20L,25L,30L and so on.