Ball mill clean out TreasureNet 🧭 The Original Treasure Hunting Website
Apr 15 2021if you use cast iron ball you are going to have problems. ball mill balls are made from abrasion resistant steel high carbon and high manganese alloy steel. and hardened. soft cast iron balls would pickup gold on the surface of the balls and cause the gold to be ground so fine it would need to chemicaly processed to recover.