Environmental equipments business

Supporting environmental conservation in the steel industry with proprietary technology

RASA SYSTEM, developed in 1967, is an original technology owned by Rasa Corporation. If molten slag, a byproduct produced when steel is manufactured in a blast furnace, is rapidly cooled with jet water, granulated slag is produced. What continuously collects this slag and turn it into products is a slag granulation plant (RASA SYSTEM). Granulated slag is recycled as raw materials for cement and concrete, soil improvement additives, and paving material, for example. There are few companies in the world that possess such blast furnace slag recycling technology. Rasa Corporation has supplied RASA SYSTEM products not only in Japan, but also to China, South Korea, Taiwan, Brazil, the United Kingdom, Germany, Belgium, and Italy. Recently, the demand for RASA SYSTEM has been increasing in response to the increased new constructions and re-constructions of steelworks around the world, and the demand has also been expanding to such new industrial fields as electric power companies.
Furthermore, when selling RASA SYSTEM, we provide integrated services ranging from the preparation of basic plans, the design of plants to the supports in construction works to the transfer of operating technologies. Rasa Corporation's engineering technologies play an active role in the high acclaim of RASA SYSTEM.