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Fast Delivery, Custom Orders
Dongan manufactures a broad range of standard, specialty and custom transformers for OEMs and end users. Contact us today to have our in-house engineering team rapidly turn your custom transformer requirements into products at your door, often within two weeks or less. We also offer a quick-ship expediting process that can deliver as fast as one week.


We are a manufacturer of high quality Transformers, Reactors, Magnetics and other Power Quality Equipment. We have been in business since 1909 and are headquartered Metropolitan Detroit.

Transformer