Many, many developing countries have exported pipe threading machines that are based upon proven models. Korea, India, and China are three examples.
I will not say these are bad, or ineffective machines. I know of one that was in use for nearly 25 years. The problem has to do with the dies; dies are not interchangeable between brands, so when your 'factory set' wears out, you're out of luck.
I have also encountered a number of used or older machines ... even quality makes such as Ridgid ... that leak an excessive amount of current into the case. In other words, are unsafe shock factories.
I've cautioned folks before as to purchasing unknown materials, of unknown origin, from auction sites ... but this might be a time when paranoia is prudent.
Otherwise ... threading equipment is clearly in the category of "company provided" tooling. Apart from the thread cutter itself, there is usually a substantial investment in vises, etc. (I once saw a very nice arrangement, where the machine was mounted on a pull-out tray on the truck). Yet more reasons not to grab just any 'bargain' that comes your way.
Reno I agree with you 100%, problem is I AM the company.
Sparkyinak I called the owner and asked him if model number was correct, he assured me it was. I saw one for sale on eBay, the seller listed it as able to thread 2 1/2 to 4 inch. Wonder if that is just the way it is set up or is that all it can do.
Life is tough, Life is tougher when you are stupid
For the occasional job, Harbor Freight sells a hand-held 'pony' that does up to 1-1/4", I believe. I do not know if it will accept Ridgid die heads; at any rate, they also sell their own dies. For $140, it's better than nothing.
You still need a pretty good vise to hold the pipe, though. Again, HF does have an affordable yoke vise, that you can mount to some truck bumpers.