Related process
Grinding media
Selection, application, and performance guidance connecting the circuit with the appropriate media family.
Review the processFor low-to-medium abrasion conditions
CROMMIUM — High-performance cast grinding ball
Designed for primary and secondary grinding with low-to-medium abrasion and as an initial transition from forged media.
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Where can CROMMIUM be evaluated?
Designed for primary and secondary grinding with low-to-medium abrasion and as an initial transition from forged media.
- Ball mill
- Primary and secondary grinding
- Low-to-medium abrasion
- Documented references: Pb-Zn-Ag, base metals, and low-to-moderate silica
Maximum performance
High-performance cast grinding ball
Designed for primary and secondary grinding with low to medium abrasiveness. Its composition offers high sphericity, stable impact response and a competitive cost-to-life ratio. Suitable for starting the transition from forged balls.
Key benefits
- High sphericityPromotes regular, predictable wear.
- Cost-to-lifeBalances performance, consumption and cost.
- Impact stabilityKeeps integrity in standard operations.
- Initial transitionEases the change to cast balls.
Chemical composition (%)
| C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| 2 - 3.3 | ≤ 1.5 | ≤ 1.5 | 2 - 3 | ≤ 1.0 | ≤ 0.1 | ≤ 0.1 |
Mechanical properties
- Hardness46 ± 2 HRC
- Impact toughnessHigh
- Wear lossMedium
- Service lifeMedium
Available size distribution
12.7 mm to 125 mm
Availability subject to operating specification
Recommended applications
| Mill type | Ball mill |
|---|---|
| Process stage | Primary and secondary grinding |
| Ore type | Low to medium abrasiveness |
| Application/Use | Standard process |
Reference minerals and ores
| Polymetallic ores | Pb - Zn - Ag |
|---|---|
| Sulphide ores | Base metals |
| Gangue/Matrix | Low to moderate silica |
| Abrasiveness | Low to medium |
Indicative reference. Final selection must be validated against mineralogy and circuit conditions.
Standards and presentation
- Process-controlled high-chromium casting
- Full lot traceability
- Bulk bag or barrel packaging
- Labelling
Selection criteria
Validate before specifying
Process and equipment
Identify stage, mill, operating window, and objective.
Ore and wear mechanism
Review hardness, abrasiveness, impact, and relevant variability.
Controlled technical trial
Agree on baseline, dosage, duration, and success criteria.
Operational follow-up
Measure consumption, performance, stability, and total cost.
Related evaluation path
Connect the product record with process context
Use the related process, knowledge, or PIC route before defining application fit.
Technical knowledge
How to select grinding media
Decision framework connecting ore, process stage, mill conditions, and performance evidence before selecting grinding media.
Read the decision guidePIC
Bring the operating challenge to PIC
Share the process, symptom, period, and available baseline so the challenge can be routed without presuming a product fit.
Bring a challenge