Engineering & Mining Journal

MAY 2018

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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MAY 2018 • E&MJ; 59 www.e-mj.com PROCESSING SOLUTIONS Weir Says New Rubber Mill Lining Lasts 20% Longer Weir Minerals announced that fi eld results show that its new Vulco R67 mill lining rubber compound delivers an increase in wear life of 20%. With a liner that can run signifi cantly longer, operators will ex- perience a measurable reduction in mill downtime, installation and maintenance costs, according to the company. "This is a breakthrough in the indus- try; a rubber mill liner that in extensive global trials delivered on average 20% longer life than comparable composite lifter bars. This means less shut-down time for maintenance, which in this highly competitive environment rep- resents a measurable outcome to our customers' productivity and bottom line," said Mathias Kuhrke, global pro- duct manager for Mill Lining Systems at Weir Minerals. After extensive fi eld research on the current rubber compounds available to the market, Weir Minerals expert engi- neers and material scientists develop- ed the unique patented material that forms the R67 compound. The com- pany noted that this premium rubber compound is the most wear-resistant it has ever formulated. Customers will not only benefi t from the increase in wear life, but will notice a measurable re- duction in installation and maintenance costs as a result of a longer run sched- ule, according to Weir. "Using our extensive in-house know- ledge, experience and expertise, we were able to develop a new Weir propri- etary elastomer that is able to withstand the severe abrasion typical in mill sys- tems applications. Our Vulco R67 com- pound utilizes new technology and chem- istry in elastomer formulary which over- comes the limitations of more traditional elastomer compounds used in the market today," said Dr. Michael Lum, materials and elastomer development manager for Weir Minerals. The company cited Simplot Phos- phates, which operates a phosphate mine north of Vernal, Utah, USA, as a long- time customer who agreed to test the lin- er with R67 rubber. After a nine-month trial, the liner achieved a 29% improve- ment in wear life and had 20% service life remaining when it was removed. The trial also achieved an estimated 25% re- duction in maintenance and reline costs. The Vulco R67 rubber compound also is visually different from others in the market place, with green capped ends on the lifter bars. Weir Minerals' new Vulco R67 mill lifters use a newly developed elastomer formula that provides superior wear resistance, according to the company.

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