Related process
Ball mill grinding
Technical page explaining operation, charge, ball size, consumption, liners, and efficiency.
Review the processWear and impact balance
CROMMORE — Medium-chromium cast grinding ball
Designed for primary and secondary grinding under medium-to-high abrasion.
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Where can CROMMORE be evaluated?
Designed for primary and secondary grinding under medium-to-high abrasion.
- Ball mill
- Primary and secondary grinding
- Medium to medium-high abrasion
- Documented references: Ag-Pb-Zn, copper, gold, and moderate quartz
Optimal balance and performance
Medium-chromium cast grinding ball
Designed for primary and secondary grinding circuits with medium-high abrasiveness. Its composition offers a reliable balance of wear resistance, impact stability and low operating cost. Ideal for moving from forged to cast balls.
Key benefits
- Wear resistanceControls mass loss under medium-high abrasion.
- Cost-benefitBalances service life, consumption and operating cost.
- Impact stabilityKeeps reliable performance in operation.
- Technology transitionEases the change to high-chromium balls.
Chemical composition (%)
| C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| 2 - 3.3 | ≤ 1.5 | ≤ 2.0 | 14 - 17 | ≤ 1.5 | ≤ 0.1 | ≤ 0.1 |
Mechanical properties
- Hardness61 ± 2 HRC
- Impact toughnessMedium
- Wear lossLow - Medium
- Service lifeMedium - High
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 | Medium - high abrasiveness |
| Application/Use | Standard process |
Reference minerals and ores
| Polymetallic ores | Ag - Pb - Zn |
|---|---|
| Sulphide ores | Copper and gold |
| Gangue/Matrix | Moderate quartz content |
| Abrasiveness | Medium to medium - high |
Indicative reference. Final selection must be validated against mineralogy and circuit conditions.
Standards and presentation
- Process-controlled medium-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.
Related process
Grinding media
Selection, application, and performance guidance connecting the circuit with the appropriate media family.
Review the processTechnical knowledge
Forged vs. cast grinding media
Practical comparison of manufacturing routes and selection criteria, subject to actual circuit conditions and engineering validation.
Read the decision guide