The machine has leadshine easy servos, which are essentially stepper motors with encoders to close the loop. Not sure why these should pose a problem for engraving. I have found they perform well.
Thanks for clarifying. The other option was Shenhui as low cost option and Argus/Senfeng as kind of middle price range. HSG it is our a kind of "premium" option. All the servo drive, laser pointer RECI 100W or similar laser tubs, Ruida controllers, HIWIN guide rails so quite similar parts by their specifications. Now the difference would be the price of-course and the after sale support, the level of English or "chinglish". This is my research now to find out how after sale support. This was my important criteria when I purchased my UV's and I got it right in that respect. Thanks again for your thoughts, as I've mention I'm a newbie in this field and any good advice from engineers like yourself if more than welcomed. If any other advice in terms of what should I check with the manufacturer before purchasing please let me know. Thank You