Both ferrous and non-ferrous foundries use a wide variety of DECENT MACHINERY fans for combustion air, sand-handling, mold-drying, shaker table dust control, grinding and deburring operations. The largest fans in the foundry are part of the pollution control systems in the melting shop. These fans can be part of filtration or scrubber systems. They are very high-energy consumers and DECENT MACHINERY attempts to find the highest efficiency fans for these applications. Some foundries incorporate heat treating and additional machining operations that require high-temperature recirculation fans and additional dust control.