Thread: up rate to 60000 rpm spindle
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26-11-2019 #1
I have a 1.5kw 220v 400hz spindle fitted on my machine.
All the feeds and speeds for the 1mm aluminium carbide bits are coming in at 50000rpm and up.
Would I need a new vfd as the 60000rpm units seem to be 1,5kw
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26-11-2019 #2
Responded here to your other thread. Please dont open multiple threads to ask the same question.
http://www.mycncuk.com/threads/13189...h-sub-4mm-bits
To get 60K RPM you need 2 things.
A spindle that can run at that speed.
A VFD that can run at the frequency needed for 60K.
Both are fairly expensive items.
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26-11-2019 #3
I have a Sunfar VFD that goes to 1000Hz, as my spindle is a 4 pole thing & hence needs 2x the normal frequency. It was a bit more expensive ($140 IIRC), but not outrageous.
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26-11-2019 #4
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27-11-2019 #5
unless i am looking at the wrong thing i can get a vfd and spindle for around £450 which i do not think is out of the park
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27-11-2019 #6
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The Following User Says Thank You to Chaz For This Useful Post:
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27-11-2019 #7
BTW, Jian-Ken who I got my spindle from, make a number of high speed models - and if initial tests with mine are anything to go by they're a notch above a lot of Chinese product. Time will tell of course how deep the quality goes!
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27-11-2019 #8
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27-11-2019 #9
Mine was about £325 landed - but it was a rather different beast to the subject of the thread, a 4 pole constant power 24K thing. Suggest you email them for a price: [email protected], the lass I dealt with was called Wafer (!). For a 1.5KW 60K spindle I think the part number is JGD80/1.5R60.
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