To deal with dust created during dry machining of cast iron components such as diesel engine cylinder blocks and cylinder heads, the ideal filter is the OptiFlo® RC. The smallest OptiFlo has just 4 cartridges and the largest single module has 20 cartridges. Adding modules allows for units of up to 200 cartridges or more. This makes for very cost effective filtration. The efficiency of filtration is such that the cleaned air can be returned to the working environment in colder months, thus saving on heating costs. For machining turbo-charger components the FabriPulse® L would apply. When machining, using a lubricant or where cooling liquid is present AAF can supply the AAF DynaPure®.