Modern Quarrying Q2 2025

The GT205S is designed to process large volumes of abrasive, hard rock and sand efficiently.

CRUSHING AND SCREENING

Marnus Koorts, General Manager Original Equipment at Weir.

As part of Weir’s mission to support its customers’ sustainability efforts, Wear Reduction Technology (WRT®) upgrades have made both WARMAN® and ENVIROTECH® pumps more energy efficient and longer lasting. WEIR’S WEAR REDUCTION TECHNOLOGY CUTS ENERGY COSTS IN PUMPING

W ith Weir’s large installed base of WARMAN® and ENVIROTECH® pumps around the world, the most impactful sustainability strategy was to improve the efficiency of equipment already in the field, according to Marnus Koorts, General Manager Original Equipment at Weir. The best place to start was with its renowned WARMAN® AH® pumps which are used by almost every mine on the planet. “Our aim was to enhance our current models to deliver

component breakthrough is improved hydraulic efficiency, achieved through advances such as the optimised design of the impeller and throatbush. For instance, the WRT® impeller features specially developed vanes that guide fluid more efficiently, reducing turbulence and minimising energy loss. “The design of the WRT impeller improves flow characteristics, compared to older designs with steeper vane angles,” he explains. In another innovation, the new design of the impeller guides fluid more efficiently to mitigate against the creation of eddies. These eddies are swirling circular

superior wear life and energy efficiency,” he says. “The WRT component combination does this by allowing upgrades that integrate seamlessly into existing infrastructure without extra capital investment.” Introduced to the African market in 2010, WRT® components deliver an energy saving of 3 to 5% to WARMAN® AH® pump owners and have extended the lifespan of these pumps by from 30% to 50%. This has meant direct on-site cost savings and significantly reduced energy consumption from the large number of these pumps in operation worldwide. At the heart of the WRT®

MODERN QUARRYING QUARTER 2 | 2025 26