Craftex is just one of many badges applied to the exact same (Korean?) machines. They are also sold as Grizzly, Emvio, Precision Matthews, Sumore and many others. So if you can find a power feeder for any of those it will most likely fit your machine just fine.

Precision Matthews has a number of power feeders on their website.

https://www.precisionmatthews.com/pr...c/power-feeds/