To utilize limited resources effectively, we developed the reclamation of casting sand. For casting sand reclamation systems, our unique　under-bed burners are adopted.　Because sand and fuel are mingled together directly, they achieve uniform combustion, and realize reduction of ignition loss.
In the furnace, fluidizing air is preheated to save fuel consumption. Further, recycling systems are so developed that they can attain both environmental conservation and good productivity such as by preventing the generation of malodorus gases while improving the yield of fine grain sand.