2.2kw 220v ER20 80mm 2-pole 400Hz Water-Cooled Power requirements

Spindles and ATCs
1

We (Chatfield Robotics) will be purchasing the Spindle in the title as part of a whole system purchase.

The questions I have are:

1)How many amps should the 220v circuit for the spindle be able to carry? 20A, 30A 40A 50A?

  1. Can a single 220v circuit be used for a complete Dominator system. We will likely be outfitting it with the 3Nm steppers.
2

The plug that comes with is for 20a, but the draw is 10a. What you'll need to power your 2.2kw 220v Spindle System - PwnCNC

You don’t want to do that for several reasons, most predominately signal interference. Optimally you want a circuit for the spindle, a circuit for the machine, and a circuit for any dust collector you may have. Smaller items like the pump could be on a shared circuit.

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2 Likes
3

Well, while not ideal for our situation, at least I now know what “optimal” is.

OK, while on this subject, would 220v 20A be sufficient for 3Nm steppers?

The reason I am asking these questions is that we will be installing this system in a High School. The only real place we “might” be given room to install it is in at Auto Shop. There is 220v in there, but I don’t know the specifics about it yet. More research and begging to come.

4

yes. it’ll be sufficient.

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With a new breaker, a 220v line can be made to a dedicated 110v also… but im sure being an educational institution, theres a lot of red tape to cut to make that happen.