My Roto Phase converter gave up after 30 years of faithful service to my 9HP equipment. When it went up in smoke right after finishing a job, I was suddenly down with customers asking when I’d be operational again and I didn’t have an answer.
I researched every phase converter manufacturer, weighing cost against quality while reading countless reviews. Finally, I realized the choice was clear on American Rotary. When you’re down, you can’t worry about money since you’re not making any.
The unit took a week to arrive, which gave me my first unplanned shop vacation in years. As an FAA-certified machine shop machining aircraft propellers across the continental US, Canada, and overseas, the work quickly started backing up – from cargo flights to aeromedical operations. That week felt like slow motion.
When the 10-20HP unit finally arrived, we worked the entire weekend installing it. First impression: this is a quality piece of equipment. We had one wiring issue – terminals 6 and 9 were reversed. My son thought he might have gotten those wrong, so we planned to fix it Monday morning.
Monday came, we reversed the wires, hit the switch, and heard that sweet humming sound. When we fired up the mill, it ran noticeably better than our old converter. This unit is fantastic.
Only time will tell if it outlasts our previous 30-year workhorse, but I’m confident it will. The only minor issue was noise from the cover – we added a rubber strip between the lid and housing, which made it much quieter.
We’ve since caught up on all backed-up work, running three machines with capacity for more. The forced vacation was actually nice – even got the shop cleaned up!
Thank you for building a quality rotary converter that got us back in business.
– FAA Certified Machine Shop Owner
