Weir on slurry pumping: rubber liners and automation – key notes for mine engineers
Reviewed by Tom Sullivan
First reported on International Mining – News
30 Second Briefing
Weir Global Product Manager – Pumps Asad Mohammed reports that rubber-lined centrifugal slurry pumps are increasingly outperforming metal-lined units, especially in duties with fine-particle slurries where elastomer liners show lower wear and longer service life. He notes that modern rubber compounds now tolerate higher operating pressures and more aggressive chemistries than earlier generations, expanding their use beyond traditional light-duty applications. Mohammed also points to growing demand for automation-ready pumps with integrated condition monitoring, enabling remote performance tracking and predictive maintenance in large mill circuits.
Technical Brief
- Mohammed notes slurry rheology and particle size distribution as primary determinants for pump material selection.
- He emphasises matching impeller and liner materials to both abrasion and corrosion mechanisms, not just one.
- For coarser, high-impact duties, he still specifies metal-lined pumps to resist particle impact damage.
- Pump sizing is discussed in terms of operating close to best efficiency point to limit recirculation wear.
- He points to incorrect pump speed selection as a common cause of accelerated liner and impeller erosion.
- Mohammed stresses that duty-point changes over mine life require re-evaluation of pump hydraulics, not just motor upsizing.
- Integration with plant control systems is framed around stable flow and pressure to protect downstream equipment.
- He links improved pump material choices directly to reduced unplanned mill downtime and lower total ownership cost.
Our Take
Recent pieces in our database on Weir’s GEHO pumps for Lloyds Metals’ iron ore slurry pipeline in India show the company already deploying advanced control systems (like GLORES), so any move toward greater automation in slurry pumping is likely to build on field-proven load-management technology rather than starting from scratch.
The back-to-back orders for Weir crushing circuits at Brightstar Resources’ Laverton gold project in Western Australia suggest that Weir is increasingly bundling comminution and slurry handling solutions, which can give operators a single optimisation envelope for wear, energy use and uptime across the whole wet plant.
Across the 1,273 mining stories in our coverage, Weir appears frequently in both ‘Projects’ and ‘Product’ tags, signalling that its slurry pumping developments are being adopted in live project scopes rather than remaining at the prototype or trial stage.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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