Grinding Balls

Grinding Balls SPECIFICATION Nominal diameter Diameter Tolerance Weight of single ball in average Surface hardness Impact toughness (mm) (mm) (g) (HRC) (J/cm2) Φ60 +3 -2 888 60-64 8-10 (ball mill) ≥14 (semi-autogenous mill) Φ70 1410 Φ80 2104 Φ90 2996 Φ100 4110 Φ110 +4 -2 5457 60-64 Φ120 7102 Φ130 9030 Φ140 +4 -3 11278 Chengde Rongmao Cast Steel Co.,Ltd. founded in 1980s, and located in historic and cultural city - Chengde China, is a large-scale casting & forging enterprise.