Heat Exchangers Business History

An overview of Tada Electric Co., Ltd.'s Heat Exchangers Business history spanning more than half a century.

1955	Started production / sales of "NK filter" microfiltration unit.
1958	Started production / sales of Alightron roll-formed fin tube.
1963	Established Tada Electric Co., Ltd.
〃	Started production / sales of radiator for transformers.
1965	Started production / sales of air-cooled and water-cooled oil coolers.
1969	Started production / sales of welded fins (welded fin tubes).

1970	Started production/sales of plate heat exchanger for food applications.
1971	Completed cooler performance testing device.
〃	Started production / sales of water-cooled air cooler for rotating machines.
1973	Completed Okayama Works; Started production/sales of water-cooled air cooler with double tube type structure.
1974	Started production / sales of pure-water cooling unit for rectifiers.
1975	Developed plate, hot-dip galvanizing air-cooled oil cooler for transformers.
1977	Jointly developed ultra-large air-cooled oil cooler for transformers with leading transformer manufacturers.
1978	Used welded fin dissimilar material combined product in practical application.
1979	Began delivery of the first closed-circuit cooling tower.

1982	Began delivery of the first water-cooled hydrogen gas cooler for generators.
〃	Developed slit-fin water-cooled air cooler.
〃	Started production of ozonizer.
1983	Started production of pure water cooling unit.
1985	Developed ultra-low-noise air-cooled oil cooler (32dB(A)) for transformers.
1986	Completed optimization of underground substation cooling system.

1994	Started production/sales of pure-water plate cooling unit.
〃	Completed Okayama Area No.2 factory.
〃	Began delivery of air-cooled oil coolers for 1,000kV transformers.
1998	Began delivery of the world's largest capacity closed-circuit cooling tower (3,140kW) for underground substations.
1999	Developed plate-fin water-cooled hydrogen gas cooler for generators.

2000	Delivered a pure-water cooling unit (3,000kW) for Japan's largest capacity DC power transmission plant.
2001	Developed tube-expansion air-cooled oil cooler for transformers.
2002	Developed compact slit-fin cooler.
2004	Developed oval-pipe air-cooled oil cooler for transformers.
2005	Developed high-efficiency fin tubes (AS20xx, AS23xx).
2008	Started production of oil cooler for railcars.
2009	Renamed Okayama Works as Heat Exchanger Works.
〃	Started production in Funabashi Area.

2011	Started export of hydrogen gas cooler for turbine generators.
2014	Completed Okayama Area Factory No. 3. Consolidated heat exchanger production by moving manufacturing from Funabashi to Okayama.
2016	Delivery of our largest pre heating heat exchanger for chemical plants.