Welcome to our Hitachi AC Drive website, owned and operated by AutomatedPT, LLC. Here you will find Hitachi AC Drives or Variable Frequency Drives to meet all low voltage variable frequency drive (VFD) applications. Our AC Drives / VFD Drives are used in various manufacturing plants located across the U.S., Canada and South America. We provide variable speed drives for processing machines used in oil and gas operations, the food industry, chemical, mining, bottling and filling plants, as well as textile plants, printing, HVACR, and water treatment plants, just to name just a few industries.