thank you all for responding to my search for information and sharing
your suggestions and experiences with the Chinese ebay spindles. I
bought one of the liquid cooled, 2.2kw models with Huan Yang vfd, with
integral ER20 spindle. We were able to bench test it yesterday and I am
pleased to report that it looks like it will meet our needs to turn a
diamond dressing roller.
These spindles all look the same on ebay but this one had listed
specification of 0-24,000 RPM and 0-400Hz where others were advertising
8,000 or more -24,000 RPM. We were looking for a lower range. The
spindle does seem to work well at all speeds. I am sure that torque and
horsepower are lower at reduced rpm but seems like they will be more
than adequate for our needs. The only reason we chose the 2.2kw model
is that it was the smallest that had an ER20 spindle, in which we will
mount a 1/2" collet to grip the shank of a precision slitting saw holder.
How soon we put it to use now depends on the sourcing and delivery of
our diamond dressing roll and a good opportunity to make the mount and
install, but at this point it looks like we do indeed have a capable and
readily replaceable solution at a low cost. We could replace this motor
yearly for a long time, for the cost of the other solution.
Thanks again - Andy Evans (Oregon, USA)
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users
