Drive recommendations for rigid tapping 24000rpm pmsm spindle.

So, Jianken has a permanent magnet spindle with an encoder, and I am trying to figure out what drive I can try with it so I can rigid tap with linuxcnc.

Specs:

4 poles
800hz / 24000rpm base speed
384 pulse ABZ quadrature encoder.
3.7kw S1

Ideally id like an ethercat drive, and tap at up to 2000-6000rpm for tiny threads. Basically this is an AC servo drive as opposed to a VFD needed although there some hybrid ish drives I've seen that might work.

Note most drives in north america will be 599hz restricted, so that's not going to be too helpful.

budget is in the $500 or less range ideally.

Anyone got an idea for what to look at?
 

Jianken has a servo driver they recommend (pre-program) for this type of spindle. Just ask them for it and if they can offer it with an EtherCAT interface.

I think you can use any spindle with an encoder. The spindle doesn't have to be exact.
The axis follows the spindle (from encoder readings) so a good/normal Z axis is what you need.

"Jianken has a servo driver they recommend (pre-program) for this type of spindle"

Jianken does not offer a drive for this spindle that can accommodate tapping (encoder interface). The drive they offer is just an open loop vector drive. The company they use (farwide) does offer a servo drive, but I cant get one.

Additionally, that drive can no longer be exported because its over 599hz.

"I think you can use any spindle with an encoder. The spindle doesn't have to be exact."

On the linuxcnc side yes, technically you can spin the spindle by hand and it would work. But to have high dynamics I need a closed loop drive as well because if you use a generic VFD the spindle will have minimal torque at 0 rpm and will take a relatively long time to accelerate. With open loop generally this spindle isn't supposed to run below about 1000rpm.

Basically, I want closer to speedio level tapping than 1986 haas level

thanks