cryogenic planetary ball mill. planetary ball mills are much smaller in comparison to common ball mills and are largely used in laboratories to grind sample materials to very small sizes. for this purpose, there are specific types of equipment as can be seen on our website. they are used across several industry fields, including chemicals,china planetary mill planetary mill manufacturers,sqm-2l china factory grinding planetary ball mill with stainless steel jars and balls, zirconia jars, agate jars for laboratory test and ball mill for ceramic. fob price us $ 1200-1800 / piece. min. order 1 piece. type planetary type.