Key facts
Size range20 to 125 mm
Typical hardness55 to 65 HRC
Production capacity8 100 tons per month
Typical dispatch24 to 48 hours
Grinding Media • Cast and Forged
Grinding Balls for stable mills and predictable cost per tonne
Songatech supplies cast and forged grinding balls that resist wear and breakage in high-impact milling. Each batch is heat treated for through-hardness, checked for roundness, and supplied with traceability so your mill runs stable and your cost per tonne stays predictable.
Overview
Grinding media performance depends on hardness profile, impact toughness, size control, and clean steel. Songatech focuses on these areas so you get steady grind, controlled make-up rates, and reliable power draw.
Clean steel
Through-hardness
Power stability
Benefits
- Consistent core hardness for impact resistance
- Uniform surface hardness for longer wear life
- Tight size tolerances for stable mill power and throughput
- Lot traceability with QA reports on request
Forged Steel Balls
Recommended for primary and SAG milling where impact toughness is critical. Produced from clean steel, forged and heat treated to reach target hardness across the cross-section.
- Typical hardness: 55 to 63 HRC by size
- Common sizes: 60, 80, 90, 100, 105, 125 mm
- Very good roundness and low spalling in high-impact duty
Primary / SAG
Impact toughness
Cast Steel Balls (High Chrome and Low Chrome)
Best for secondary and regrind circuits, as well as cement. High Chrome options give strong abrasion resistance in corrosive or very hard ores.
- Typical hardness: 58 to 65 HRC by grade
- Common sizes: 20 to 90 mm
- High Chrome grades available for acidic or corrosive pulps
Regrind / Cement
Abrasion control
Quality assurance
Heat treatment
Heat treatment curves recorded per batch
Hardness testing
Rockwell C from surface to core
Impact checks
Drop test and toughness by size
Dimensional control
Roundness and size checks
Plant support
Mill trial support and monthly wear tracking
Packing and delivery
- Packed in 1 t bulk bags or steel drums
- Stock items usually dispatch within 24 to 48 hours
- Custom sizes and grades made to order
- Regional supply across South Africa and SADC
Frequently asked questions
SizingHow do I pick the correct size mix for my mill
Start from your current power draw and target grind. Choose the largest ball that breaks the coarsest fraction, then set a top-up blend that keeps power stable. Adjust monthly using liner wear, cyclone cut, and grind targets.
MatchCan Songatech match an existing specification
Yes. Provide size distribution, target hardness, and duty. The team will match or improve the grade and confirm with a short plant trial if needed.
CertificatesDo you provide test certificates
Yes. Batch certificates include size, hardness readings, and heat treatment records. Chemistry certificates are available for cast grades.
Note. Hardness ranges are typical targets. Final grade and hardness are set to site conditions and the size mix.
Selection guide
Primary / SAG
High impact
Coarse feed with high impact energy. Focus on toughness and stable power.
Recommended: Forged Steel 100 to 125 mm
Blend by power draw
Track top-up rate
Secondary
Mixed impact and abrasion
Transitional duty where both impact and wear matter. Match hardness to liner profile and grind target.
Recommended: Forged 80 to 100 mm
Alternative: Cast 60 to 90 mm
Set hardness to mill conditions
Regrind / Fine
High abrasion
Fine grind with dominant abrasion. Higher surface hardness helps with wear control.
Recommended: Cast High Chrome 20 to 60 mm
Aim for high surface hardness
Cement
Dry grinding
Dry clinker grinding. Pick grade based on clinker hardness and mill layout.
Recommended: Cast Low or High Chrome 20 to 90 mm
Select grade for abrasion and dryness
Ready to size and supply
Send your mill duty, size mix, and target hardness. Receive a clear quote and lead time.
sales@songatech.co.zaSongatech (Pty) Ltd
Headquartered in Alrode, Alberton South, and active across all major mining provinces — including the Northern Cape, Limpopo, North West, Mpumalanga, and Gauteng — Songatech has also extended its support into Botswana, Zambia, Lesotho, and the DRC, building a regional footprint that reflects both scalability and reliability.
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