Catalytic Muffler for Caterpillar Underground Mining

Caterpillar Underground Mining required a manufacturer to design, develop and supply a catalytic oxidation muffler for first fit installation in their extreme duty mining vehicles.


The catalytic oxidation mufflers were expected to provide a combination of noise reduction, low levels of nitrogen dioxide and high removal efficiencies in carbon monoxide, hydrocarbons and soluble fraction of particulate matter. A durability of 10000 hours was required.


DCL supplied an all-stainless steel packaged catalytic oxidation muffler with brazed metal substrate. Extensive noise engineering and FEA work was conducted to meet design targets for noise, emissions and mechanical durability. No mechanical failures since the year 2000.


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