JSW Steel’s advanced Grinding Media is engineered directly at our premier 1.15 MTPA Salem Works integrated plant. Supported by a specialized 100,000-ton capacity mill, we deliver highly durable, skew-rolled grinding balls designed for exceptional wear resistance and structural integrity.
With advanced skew-rolling and integrated manufacturing technologies, we control the entire quality lifecycle from raw steel to the finished ball, delivering high-performance consumables tailored for the mining and mineral processing industries.
The Grinding Media Mill (GMM)
PRODUCT - MIX
Grinding Media Rolled / Forged Carbon and Carbon - Chromium Steel - Specification.
Specification for Steel Grinding Balls for Ball Mills.
Steel Milling Balls for Ball Mills.
Customer Specific Requirement.
Varies with chemical composition as per customer requirement.
Cr: 3.00% Max and overall alloy content up to 5.00% Max, adjustable as per customer specific requirement.
Heat treated for Maximum Hardness & High Abrasive Resistance
| Image | Ball Size (mm) | Equivalent Size (inch) | Size Tolerance | Surface Hardness (HRc) | Volumetric Hardness (HRc) | Ball Weight (kg) | C% | Si% | Mn% | P% | S% | Cr% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
25 | 1" | ± 2.5% | 60 - 65 | 60 - 65 | 0.06 | 0.62 - 0.67 | 0.15 - 0.30 | 0.70 - 0.85 | 0.025 max | 0.010 max | 0.30 - 0.40 |
|
40 | 1.5" | ± 2.5% | 60 - 65 | 60 - 65 | 0.26 | 0.62 - 0.67 | 0.15 - 0.30 | 0.70 - 0.85 | 0.025 max | 0.010 max | 0.30 - 0.40 |
|
50 | 2" | ± 2.5% | 60 - 65 | 60 - 65 | 0.51 | 0.62 - 0.67 | 0.15 - 0.30 | 0.70 - 0.85 | 0.025 max | 0.010 max | 0.30 - 0.40 |
|
60 | 2.3" | ± 2.5% | 60 - 65 | 60 - 65 | 0.89 | 0.62 - 0.68 | 0.20 - 0.40 | 0.85 - 1.00 | 0.025 max | 0.010 max | 0.60 - 0.70 |
|
70 | 2.8" | ± 2.5% | 60 - 65 | 60 - 65 | 1.41 | 0.62 - 0.68 | 0.20 - 0.40 | 0.85 - 1.00 | 0.025 max | 0.010 max | 0.60 - 0.70 |
|
80 | 3" | ± 4% | 60 - 65 | 60 - 65 | 2.1 | 0.62 - 0.68 | 0.20 - 0.40 | 0.85 - 1.00 | 0.025 max | 0.010 max | 0.60 - 0.70 |
|
90 | 3.5" | ± 3% | 60 - 65 | 60 - 65 | 3 | 0.62 - 0.68 | 0.20 - 0.40 | 0.85 - 1.00 | 0.025 max | 0.010 max | 0.60 - 0.70 |
Heat treated to achieve Optimised Hardness & High Impact Resistance
| Image | Ball Size (mm) | Equivalent Size (inch) | Size Tolerance | Surface Hardness (HRc) | Volumetric Hardness (HRc) | Ball Weight (kg) | C% | Si% | Mn% | P% | S% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
100 | 4" | ± 3% | 55 - 60 | 55 - 60 | 4.11 | 0.57 - 0.62 | 0.35 - 0.45 | 0.95 - 1.12 | 0.025 max | 0.010 max | 0.75 - 0.80 | 0.055 - 0.065 |
|
115 | 4.5" | ± 3% | 48 - 55 | 48 - 55 | 6.26 | 0.57 - 0.62 | 0.35 - 0.45 | 0.95 - 1.12 | 0.025 max | 0.010 max | 0.75 - 0.80 | 0.055 - 0.065 |
|
125 | 5" | ± 2.5% | 48 - 55 | 48 - 55 | 8.03 | 0.57 - 0.62 | 0.35 - 0.45 | 0.95 - 1.12 | 0.025 max | 0.010 max | 0.75 - 0.80 | 0.055 - 0.065 |
|
140 | 5.5" | ± 2.5% | 48 - 55 | 48 - 55 | 11.3 | 0.57 - 0.62 | 0.35 - 0.45 | 0.95 - 1.12 | 0.025 max | 0.010 max | 0.75 - 0.80 | 0.055 - 0.065 |
|
150 | 6" | ± 2% | 48 - 55 | 48 - 55 | 13.87 | 0.57 - 0.62 | 0.35 - 0.45 | 0.95 - 1.12 | 0.025 max | 0.010 max | 0.75 - 0.80 | 0.055 - 0.065 |
| Feature | Conventional Balls | JSW Grinding Media |
|---|---|---|
| Wear Rate | Higher | Lower |
| Hardness Consistency | Moderate | High |
| Breakage Resistance | Moderate | High |
| Mill Efficiency | Standard | Improved |
JSW Grinding Medias are available in 1 or 2-ton High-Density Polyethylene bags with secure lifting straps and wooden pallets.
Loose ball supply is available in half-height containers, standard 20ft containers, or through open-top trucks.
Grinding Medias are packed in 200 litre metal drums on pallets, each containing approximately 1 ton gross weight balls.
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