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The KMA 220 from Wirtgen America builds on the success of its predecessor, the KMA 200, by adding a third axle to enhance the roadability of this popular portable cold mix plant. All three air-suspension axles have raising and lowering capability, as well as automatic, load-dependent all-wheel air brakes. The KMA 220 portable cold mixing plant from Wirtgen will mix 220 tph of cold mix asphalt, without visible emissions and without requiring any EPA operating permits. Virgin and/or reclaimed materials can be processed using emulsions, foamed asphalt, lime, cement, polymer additives, fly ash and other materials. Because no heating is required, the mixing plant is virtually emission-free.To make foamed asphalt Green Mix with the KMA 220, milled reclaimed asphalt pavement (RAP), excavated road base, and crushed recycled concrete aggregate (RCA) all can be incorporated up to 100 percent in cold Green Mix from the KMA 220.