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In the world of mineral processing where every minute of operation counts, Strudex SAG mill liners stand as the gold standard for reliability and efficiency. Our liners are not just wear parts - they're performance multipliers engineered to keep your mills running longer, safer, and more profitably.
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In mineral processing, the SAG mill is the beating heart of any concentrator. Its performance dictates throughput, energy consumption, and overall profitability. At the core of that performance lies one critical component: the mill liner. For mines processing copper, gold, iron ore, or polymetallic ores, the choice of liner material directly impacts grinding efficiency, downtime, and operating costs.
Strudex introduces its next-generation SAG mill rubber liners – a precision-engineered alternative to traditional alloy steel liners. Designed to excel in high-impact, abrasive, and corrosive environments, Strudex rubber liners deliver longer service life, lighter weight, safer maintenance, and measurable sustainability gains. Trusted by top mining operations with over 10,000 installations globally, our rubber liner solutions are redefining what’s possible in semi-autogenous grinding.
While metal liners have been the industry standard for decades, modern rubber composite technology has evolved dramatically. Strudex SAG mill rubber liners leverage proprietary elastomer compounds, multi-layer reinforcement, and computer-optimized profiles to outperform conventional liners in key areas:
- Weight reduction – Up to 50% lighter than steel liners, reducing mill load and energy draw.
- Impact absorption – Rubber’s natural elasticity cushions grinding media impacts, lowering noise and protecting the mill shell.
- Wear uniformity – Advanced rubber compounds wear more evenly, maintaining lifter profiles longer.
- Corrosion resistance – Rubber is inert to most chemical attack from slurry and process water.
For mines seeking to lower cost-per-ton and improve safety, Strudex rubber liners are a proven solution.
Strudex has developed a family of proprietary rubber compounds tailored to specific ore characteristics:
- High-impact grades for coarse feed, large grinding media, and hard rock (e.g., gold, copper porphyry).
- High-abrasion grades for sharp, siliceous ores like iron ore and quartzite.
- Corrosion-resistant grades for acidic or saline process conditions.
Each liner features a multi-layer composite structure: a tough wear-resistant rubber face, a resilient energy-absorbing middle layer, and a rigid metal or fabric-reinforced backing for secure attachment. For the most demanding applications, rubber-metal composite options combine the impact absorption of rubber with the cut resistance of steel lifters.
Strudex is not a generic wear parts supplier. We are a global leader in mill lining technology with:
- 10+ years of dedicated rubber liner R&D and over 10,000 successful installations.
- Digital twin engineering for every liner set before manufacturing.
- ISO 9001:2024 certified manufacturing facilities with in-house rubber compounding.
- Global logistics network – Warehouses in North America, South America, Africa, Australia, and Asia ensure fast delivery.
- 24/7 technical support – Including on-site mill audits, liner performance reviews, and training.
Every Strudex SAG mill rubber liner is backed by a performance guarantee – if our liner doesn’t meet agreed life or efficiency targets, we work with you to correct it at no cost.
Downtime is the enemy of profitability. Strudex rubber liners integrate smart fastener systems that enable:
- Tool-less or reduced-tool installation on compatible mills.
- Captive fasteners that prevent loss inside the mill.
- Visual wear indicators embedded in the rubber for quick inspection.
These features translate to up to 30% faster reline times compared to conventional rubber or steel liners – getting your SAG mill back online hours or even days sooner.
Strudex is committed to responsible mining. Our SAG mill rubber liners deliver measurable environmental benefits:
- 30% longer average service life than industry benchmarks, reducing liner consumption and waste.
- Energy-efficient operation – Lower mill weight and optimized lifter profiles reduce power draw per tonne.
- 100% recyclable rubber at end-of-life, with Strudex offering a take-back recycling program.
- Reduced reline frequency lowers carbon footprint from maintenance logistics and transport.
For eco-conscious operations, choosing Strudex rubber liners is a direct contribution to lower Scope 2 and Scope 3 emissions.
- Copper ore processing (primary SAG grinding)
- Gold and silver ore milling
- Iron ore (hematite, magnetite) concentration
- Polymetallic (Zn-Pb-Cu-Ag) operations
- High-tonnage open-pit mines with long liner life requirements
- Primary SAG mill grinding – High impact, large feed (150–400 mm)
- High-waste rock content – Abrasive gangue minerals like quartz
- Mines with frequent reline constraints – Remote locations, limited maintenance windows
- Noise-sensitive sites – Rubber liners significantly reduce mill noise levels
- Sustainability-focused operations – Lower energy and material footprint
This is the Strudex difference – engineered rubber liners that improve your bottom line.
Ready to experience longer liner life, faster relines, and lower grinding costs?
Contact the Strudex technical team today for:
- A free mill performance evaluation
- A custom rubber liner proposal for your SAG mill
- Sample testing of our rubber compounds on your ore
- On-site consultation and liner design walkthrough
