Elephant Rubber mill liners protect grinding mill shells from wear by ore and grinding media. Natural rubber compound liners are the preferred choice for mills grinding soft to medium hardness ores (Bond Work Index below 15 kWh/t), providing longer service life than steel, dramatic noise reduction, and 75% lower weight for safer and faster installation.
| Parameter | Specification |
|---|---|
| Primary compound | Natural rubber (NR), high-purity grade |
| Hardness range | 40—?5 Shore A (application specific) |
| Tensile strength | —?8 MPa |
| Elongation at break | —?00% |
| Abrasion resistance | Excellent for impact mechanism |
| Maximum ore hardness | BWI —?5 kWh/t (contact us for harder ores) |
| Maximum ball size | SAG: —?25mm; Ball mill: —?0mm |
| Weight vs steel equivalent | ~25% of steel weight |
| Noise reduction vs steel | 10—?5 dB(A) |
| Fastening | Through-bolt with rubber backing nut |
| Backing plate | Steel backing plate bonded to rubber (standard) |
| Manufacturing | Custom moulded to drawing or reverse-engineered from worn liner |
| Mill Type | Ore Hardness | Liner Recommendation |
|---|---|---|
| SAG mill, soft ore (BWI <10) | Soft | NR rubber, 40—?0 Shore A |
| SAG mill, medium ore (BWI 10—?5) | Medium | NR rubber or composite |
| SAG mill, hard ore (BWI >15) | Hard | Composite or steel —?contact us |
| Ball mill, soft-medium ore | Soft-Medium | NR rubber, 55—?5 Shore A |
| Rod mill | Various | NR rubber for soft ores |
Don't have original drawings? Send us a worn liner or clear photos with dimensions. We can reverse-engineer the profile and manufacture exact replacement liners. This service has helped over 50 mines replace OEM liners at 30—?0% lower cost. Typical turnaround from sample receipt to first production set: 25—?5 days.
Send us your application details. We respond within 24 hours with specification and price.
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