Weir Minerals rubber technology has long been a hallmark of its offering to the mining and minerals processing industry. The company said it continues to push the boundaries of what rubber is capable of in mill circuit applications with the Warman MCR slurry pump.

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The pump utilises a unique rubber compound known as R55 rubber; its physical properties give it a high resistance to tearing and cuts, which means it’s capable of performing well in applications where competitors generally use metal liners. Weir said R55 is the standard rubber utilised to line Warman MCR slurry pumps. 

“The key to formulating a rubber with high tear and cut resistance lies, in part, in the reinforcement particles that are added,” explained Weir Minerals. 


“These filler particles have varying properties, but, generally speaking, there’s a correlation between how well the particles are dispersed and the relative wear resistance of the final product.”


Weir Minerals said it is also increasing the utilization of Armachrome ­– a highly wear-resistant overlay material – in mill circuit applications. It’s one of the most wear-resistant materials commercially available and can be added to pump throatbushes, volute liners and, most recently, impellers.


Armachrome wear parts provide enhanced, extended wear life and localised wear performance. The parts are a bespoke Weir Minerals solution and extensive field results in Warman MC pumps have been extremely positive. 


Weir Minerals said the Warman MCR slurry pump is underpinned by years of R&D, conducted by dedicated teams of engineers, scientists and product experts. Investing in R&D is central to the company’s strategy and at the heart of its commitment to innovative engineering.


Source: Weir Minerals