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From small shops to large industrial operations, we help businesses run three-phase equipment with confidence — delivering balanced, reliable power where and when it’s needed.
Built in Wisconsin and backed by in-house engineering, R&D, and technical support, American Rotary combines design excellence with premium components to produce converters that outperform and outlast. When uptime matters, we deliver.
Problems
Wisconsin Made
In-House Engineering & R&D
Premium Components
Industry-Leading Warranty
Technical Support
American Rotary has supplied tens of thousands of rotary phase converters to customers in manufacturing, agriculture, fabrication, machining, woodworking, and industrial operations worldwide.
We maintain high ethical and privacy standards. More importantly, we stand behind every unit we build. We encourage customers to compare our warranty, support, and performance to any other manufacturer in the industry.
Because when your equipment powers on, everything else depends on it.
Learn more about what sets American Rotary apart — from our engineering standards and manufacturing roots to the customers and industries we proudly serve.
My old rotary phase converter gave 30 years of faithful service before it went up in smoke. With customers asking when I’d be operational, I researched every manufacturer and the choice was clear on American Rotary. First impression when it ... READ MORE
FAA Certified Machine Shop Owner
Very good company to do business with. The salesman Lenny treated me like I was a big company. I was shopping for a roto phase for my home machine shop. He had all the time in the world for me. ... READ MORE
Rodney Mears
A quick google search pointed me toward American Rotary. It wasn’t their website or their pricing but the number of videos and testimonials about the quality of their product and the great service. I wasn’t disappointed. I called on a ... READ MORE
Carl DiPaolo
I purchased this unit for a tenant in a commercial property that needed 3 phase power and the cost for the utility company to bring it in was significantly higher with much longer times to complete the project. The phase ... READ MORE
Matt Peace
I tried an inexpensive digital converter that made my machine motors very hot due to unbalanced power. A person I bought a milling machine from said he had an American Rotary and was very happy with the quality, so I ... READ MORE
Brad Everett
When I started, the garage had a single 120 V receptacle behind a shelf. Now, there (4) duplex 120A receptacles, (1) NEMA 16,20 A 240/120V with a DPDT switch to select voltages. 30A 50A 1 phase receptacles. Two 20A, one ... READ MORE
Raymond Jensen
I called in a talked to a representative told them I have a refrigeration unit I was looking to run 3 phase to, gave them the specs and was recommended the ADX 10. I ordered it super fast shipping got ... READ MORE
Jonathan Arrington
I had to move my workshop due to rent increases. The one I found didn’t have 3 phase. I found some cheap crappy digital shifter…didn’t work. Then I found American Rotary, they are the real deal! I am able to ... READ MORE
Mike Chinn
para todos los hispanohablantes America Rotary 100% recomendado fácil de instalar fácil de manejar fácil de cablear todo perfectamente gracias por su ayuda para poner en funcionamiento mi máquina edgebanding 3 Phase For all Spanish speakers, American Rotary 100% recommended. ... READ MORE
Neftaly Bustos Custom
Just got my ADX 5 up and running couldn’t be happier with my decision to purchase this excellent customer service and tech support. A++++++
... READ MOREMark Anderson
Absolutely love what american rotary does. Had a wonderful experience with their support team the phase converter we purchased and the transformer were supper easy to install definitely recommend buying from them. Customer service is 10/10
... READ MORECustom Machined Concepts | Andrey Girenko
American Rotary is an awesome company to work with, Mike was/is very helpful in answering my questions and getting me what I needed to get my shop ready for a new machine, giving me an option to either piggy back ... READ MORE
Charles Nelson
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