Related process
SAG milling
Core content on SAG process, charge, media, liners, wear, capacity, and optimization.
Review the processAuxiliary media for SAG milling
FORGIUM-S — Forged grinding ball for SAG mills
Designed as auxiliary media in primary semi-autogenous grinding and severe-impact conditions.
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Where can FORGIUM-S be evaluated?
Designed as auxiliary media in primary semi-autogenous grinding and severe-impact conditions.
- SAG mill
- Primary grinding
- Low-to-medium abrasion
- Documented references: Ag-Pb-Zn, copper, gold, and low-to-moderate silica
Optimized for SAG mills
Forged ball for SAG mills
Designed as an auxiliary charge in semi-autogenous grinding. Its high toughness withstands severe impacts and helps stabilize the mill charge, reduce scrap and sustain SAG circuit capacity.
Key benefits
- Less scrapReduces losses from fracture and deformation.
- Mill capacitySupports SAG charge stability.
- High toughnessWithstands severe impact conditions.
- SAG operationComplements the semi-autogenous process.
Chemical composition (%)
| C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| 0.58 - 0.70 | 1.50 - 1.90 | 0.70 - 0.90 | 0.70 - 1.0 | < 0.002 | ≤ 0.035 | ≤ 0.035 |
Mechanical properties
- Hardness59 ± 3 HRC
- Impact toughnessHigh
- Wear lossMedium
- Service lifeMedium
Available size distribution
101.6 mm to 127 mm
Availability subject to operating specification
Recommended applications
| Mill type | SAG |
|---|---|
| Process stage | Primary grinding |
| Ore type | Low to medium abrasiveness |
| Application/Use | SAG grinding auxiliary |
Reference minerals and ores
| Polymetallic ores | Ag - Pb - Zn |
|---|---|
| Sulphide ores | Copper and gold |
| 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
- Forged steel for SAG service
- 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
SAG mill performance variables
Map of ore, charge, media, liner, and operating variables that should be analyzed together when evaluating a SAG mill.
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