glentek or chinese AC servos

I am at a impass with my lathe retrofit, either I buy a pair of used glentek brushed DC drives, the only thing out there with the proper current handling for my axis motors, or I yank the motors and go with chinese AC servos. 

how reliable are the glentek drives ? how reliable have chinese ac servos been ? I intend on running this machine hard for 10-12 hrs a day, I am leaning towards the glentek drives. 

What voltage and current handling do your motors require?
AMC has some reasonably large DC drives avalable (up to 250amp peak).
I think the Glenteks are reasonably reliable, but anything real old is going to have a question mark? Glentek still makes new DC brush motor drives.
www.glentek.com/shop/?swoof=1&product_ca...r_tax=21-product_cat

went with the newer used glentek drives, circa 2016, with documentation. 


wish i could find a smb72100, perfect spindle drive

FYI - Copley Xenus series can do brushed servos with or without resolvers up to 20A continuous with single-phase 240VAC input.

Sounds like you got some nice drives though.