A Philippine customer purchased one rectifier TDFB-1000A/40V each in 2022 and 2023 for anodizing.

40V 1000A IGBT type air cooled anodizing rectifer

Customer Reviews: Overall, the feedback on this unit has been very good.

For common anodizing rectifer, output voltage is generally in the range of 18V~24V, output current is 4000A, 6000A.
12KA and so on. Hard anodizing the oxide flm is thicker, the regular voltage also higher, such as 80V, 100V.