Grinding Media Manufacture: Some Problems Can Be Quite Visible

By Ed D’Errico Sigma Equipment Corp. Poor performance from steel grinding media has been troublesome for many, but the reasons can be diagnosed and sometimes the answer may be literally right before your eyes.   When bead mills started appearing in the U.S. and elsewhere back in the 1970s, most ink manufacturers used steel media. Chosen for its high density and wear resistance, it became the media of choice.   There were no companies making steel media per se, so mill manufacturers...