Products
JOC Machinery supply SAG mill and ball mill grinding media for site-specific grinding conditions.
Forged Steel Balls
| Ball Mill Grinding Media |
| Grade |
Size Range |
Chemical Composition |
Average Volumetric Hardness (HRC) |
| C |
Mn |
Si |
Cr |
| Ultra Hard |
20-80mm |
0.75-1.02 |
0.73-0.95 |
0.15-0.35 |
0.25-0.55 |
59-63 |
| Ultra Hard-2 |
20-80mm |
0.86-1.00 |
0.80-1.00 |
0.40-0.75 |
0.35-0.80 |
61-63 |
| Ultra Hard-3 |
20-80mm |
0.90-1.10 |
0.80-1.00 |
0.40-0.95 |
0.35-0.80 |
59-63 |
| Through Hard |
90-125mm |
0.75-0.90 |
0.60-1.40 |
0.30-1.85 |
0.20-0.80 |
59-61 |
| Through Hard-2 |
90-115mm |
0.85-1.00 |
0.80-1.00 |
0.40-1.75 |
0.40-0.85 |
61-63 |
| SAG Mill Balls |
| Grade |
Size Range |
Chemical Composition |
Average Volumetric Hardness (HRC) |
| C |
Mn |
Si |
Cr |
| 1 |
125-133mm |
0.70-0.90 |
0.30-1.00 |
0.50-1.85 |
0.30-1.00 |
60-62 |
| 2 |
133-150mm |
0.70-0.90 |
0.60-1.00 |
0.15-0.35 |
0.70-1.00 |
60-63 |
| 3 |
90-115mm |
0.70-0.90 |
0.30-1.40 |
0.30-1.40 |
0.50-1.00 |
60-63 |
| 4 |
125-160mm |
If interested, please contact us for inquiry. |
57-60 |
| 5 |
90-115mm |
59-60 |
| 6 |
140-160mm |
60-63 |
| 7 |
125mm |
58-60 |
We deliver the size, grade and chemical composition in our grinding media according to the ore characteristics, milling methords and other requests of our customers.
High Chrome cast media is also available.
Annual Production Capacity
120,000 metric tonnes of roll-forged balls
80,000 metric tonnes of hammer-forged ball
Should you would like to know how we can help with your next project, please contact us today!
Audited Supplier 
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