Envelope Feeders for 524

Looking to add an envelope feeders to our 524. Having issues finding a machine that is compatible with Ryobi. Anyone use a good envelope feeder for Ryobi offset?

 

Hi, I am looking to purchase a 2010 Ryobi 524 Press. Do you know if I can print #10 4 color envelopes on it?

 

You can, but it is very tricky using the standard feeder board and slowing the press down. To run true production you will need an envelope feeder to run at true operating speeds. Only option I could find was a product called Super Feeder, but that is 40k for an envelope feeder. I am looking at inkjet options to add to my plant now.