This is a high-pressure duct that forms ribs between the flanges, significantly improving strength. It is used in cylindrical formwork for civil engineering and construction.
It has a high resistance to external pressure. The spiral hub and ribs serve as reinforcement. We also manufacture specified dimensions according to conditions such as on-site and transportation.
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basic information
This is a wind duct made of steel plates spirally wound by a spiral machine. * It can be manufactured with a nominal diameter pitch of 25mm from φ200 to φ600. * It can be manufactured with a nominal diameter pitch of 50mm from φ600 to φ1600.
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Delivery Time
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Applications/Examples of results
● For general civil engineering foundations ● For road sign foundations ● For utility pole foundations ● For elevated bridge reinforcement
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Company information
Since its establishment, the company has sold product materials including duct manufacturing machines, spiral ducts, and insulated flexible ducts. It has the largest service network in the industry with 41 locations domestically and internationally. Since 2000, it has proposed improvements in on-site work with new materials such as "FEF," an insulation material, and new methods like "Patchin Lock." In 2020, it developed the industry's first fiber laser cutting machine. To realize CAD/CAM, collaboration with BIM is also in progress. In 2022, it sold "air curtains" (manufactured by FRICO in Sweden), capturing 60% of the global market.