Hardinge Lathe CNC Retrofit/Conversion

[Hood]

Would you get a single phase drive for a motor that size?
For servo drives 3Kw seems to be about the max for single phase and I would have thought spindle drives would be the same.

[Chaz]

Would you get a single phase drive for a motor that size?
For servo drives 3Kw seems to be about the max for single phase and I would have thought spindle drives would be the same.

Good question. I hope so, otherwise Ill need to make a plan here.

I run my 6.8 KW 24K HSD spindle on single phase with an inverter. Its a 380V version but I know you can specify 220V at that power.

[JAZZCNC]

Would you get a single phase drive for a motor that size?
For servo drives 3Kw seems to be about the max for single phase and I would have thought spindle drives would be the same.

When I asked SZGH Mike told me the drive I have could be run on a single-phase supply but at a de-rated motor output.(approx 20%) Not that it matters because I will be running it on 3 phase anyway.

[Chaz]

When I asked SZGH Mike told me the drive I have could be run on a single-phase supply but at a de-rated motor output.(approx 20%) Not that it matters because I will be running it on 3 phase anyway.

And that was my understanding too. What I did not pick up was that the version I ordered is 380V only. Ive had words with them, I intend to order more stuff - then they quoted on Friday for 220V 3 Phase despite me reminding them I only have single phase.

They suggested they could supply one of the items at cost as a 'sorry' for the issue but then tell me how much more complicated / expensive the 220V version is, so perhaps no discount after all. Lets see, Ill probably hear from Susie in the morning.

[Colin Barron]

And that was my understanding too. What I did not pick up was that the version I ordered is 380V only. Ive had words with them, I intend to order more stuff - then they quoted on Friday for 220V 3 Phase despite me reminding them I only have single phase.

They suggested they could supply one of the items at cost as a 'sorry' for the issue but then tell me how much more complicated / expensive the 220V version is, so perhaps no discount after all. Lets see, Ill probably hear from Susie in the morning.

You may be lucky, i sent an email to Mike and received this reply:
Sorry for late replay because we are on Holiday this term as Chinese New Year(6th,February,2021-18th,February,2021).Happy Chinese New Year to you and your family!!! We will feedback to you soon after holiday! Thank you very much for your understand!

Then later he replied, work that one out.

[Chaz]

You may be lucky, i sent an email to Mike and received this reply:
Sorry for late replay because we are on Holiday this term as Chinese New Year(6th,February,2021-18th,February,2021).Happy Chinese New Year to you and your family!!! We will feedback to you soon after holiday! Thank you very much for your understand!

Then later he replied, work that one out.

Ah yes, in which case nothing will be happening. Forgot about that.

[JAZZCNC]

Ah yes, in which case nothing will be happening. Forgot about that.

You'd probably want to wait anyway because shipping is through the roof at the minute.

[Chaz]

You'd probably want to wait anyway because shipping is through the roof at the minute.

Thanks. Is that due to people trying to get stuff before the holidays?