EtherCAT System Implementation of JMC Ethercat Servos

180w servos will be plenty powerful for that machine

What you quoted is a bad investment in my opinion. 36v looks like a stepper motor parameter
The other option is a dc motor . For ethercat devices, the budget option is CTB or Adtech . It is better to buy for a little more money AC servo motor with standard step/direction control. - I think the headaches will be less.

Ethercat has a long learning curve and you are working with 2 different environments EtherCAT and Linuxcnc so it's not always easy.
There is a rash of cheap EtherCAT drive appearing and most of them are undocumented. There is no guarantee you will get them going.
I would not buy any drive unless it was CIA402 compliant because at least there is a standard to follow. As stated 36 volts sounds odd for servos.

Personally, for a first project on a budget, I would look at the Rteligent ECT60 Ethercat Steppers  or their 220 V AC Ethercat servos because they are well documented.

Also be sure you can control your spindle. I think using RS485 modbus spindle control solves some issues. A 0-10 volt interface for spindle control could be expensive (Beckhoff again). You may be able to use PWM with a Rtellgent IO module. Spindle encoders are also a bit of an issue. you really have no choice but to use Beckhof  encoder modules although there are a couple of options but none of them are cheap.

Thank you all for that vivid discussion!I already thought about doing it with Steppers, my problem with that is that I want to implement servos, because of its high speed torque and that if i got it to work the price range of these Servos would give a great price-performance ratio.And again I sound like a salesperson image missing /media/kunena/emoticons/laughing.png

Also i got from JMC the Manuel and their product portolio for the Ethercat moduls, I would attach them here, but the problem is the files are too big.

if the nema 23 worked before then the 180w servo should work too. personally find servos better too. They are more dynamic and easier to tune if you have good manuals. but tuning these jmc servos is not easy. rod is right it's going to be a long road with ethercat. I also only started with a laptop, one servo and the Mesa 7i76e on the table. and when that worked i bought more. a servo with a brake is recommended for the z-axis.

if you want to try ethercat then try one and see what works. but there are not many ethercat users here who can help. otherwise a Mesa 7i96s and step/dir servos would be good choices for this machine