Plant Equipment and Hire November 2017 | Page 8

AFRICA news Weir Minerals’ flexibility in its range of maintenance solutions allows each mining customer to choose the most effective maintenance strategy for its particular conditions. The company’s maintenance solutions include a cost-per-tonne model, which allows mines to budget a set premium for a predetermined production rate; and a repair-and-exchange model, where the OEM keeps key stock related to the specific customer’s requirements, enabling it to supply long lead time items in just a few hours. According to Weir Minerals regional services manager, Kobus Fourie, OEM involvement in ongoing plant maintenance can help to increase reliability, which reduces maintenance costs in the long term. “Through our service capacity, OEMs are playing an increasingly important role in mining,” he says. “We can do this because our knowledge base — earned through extensive and ongoing investment in research and development — is well established. The benefits of having an OEM maintain their own equipment far outweighs the costs, especially if you take into account the indirect cost of downtime due to the more frequent breakdowns often resulting from the use of a non-OEM part, for example.” Fourie also emphasises the safety aspect of good maintenance strategies, although he acknowledges that applying a long-term approach to maintenance is not always easy in the mining sector, as volatility in commodity prices creates uncertainty around the life-of-mine expectations at many operations. “A more stable outlook allows mines to make better decisions about investing in the longevity of their critical-path plant and equipment,” he says. “Nonetheless, the key differentiator among mining competitors is a systematic approach to maintenance that can be applied irrespective of the prevailing economic climate.” Weir Minerals has joined forces with Dell and Microsoft to develop condition monitoring for preventive maintenance, eventually allowing the OEM to predict equipment failure intervention before such failure occurs, avoiding downtime and minimising costs. Weir offers flexible maintenance solutions Kobus Fourie, regional service manager at Weir Minerals Africa.