I recently bought a 10 hp cnc lathe, Fanuc o-t control. I’m trying to decide on a converter and maybe an isolation transformer. I’m thinking a 20hp adx from American Rotary. I want to put voltage around 208. My line voltage is 240. Is a drive isolation transformer worth the extra money? Thanks
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Cnc lathe, rotary converter isolation transformer?
- Thread starter Dukerc51
- Start date
- Replies 5
- Views 741
Lathes suck the pixies pretty good. If this is all new to you look real hard at your transformer size, service wire size and any other restriction you might have. Plan for 100 amps steady for a few minutes and peak loads much higher. That lathe can probably trip a 100 amp single phase breaker.
I would look at a 30HP RPC, Whatever brand, doesn't matter it's just a motor spinning. A Delta-WYE 240-208 transformer will be great.
I would look at a 30HP RPC, Whatever brand, doesn't matter it's just a motor spinning. A Delta-WYE 240-208 transformer will be great.
I’ve run mills off phase converter but no lathes yet. I’m looking at American rotary stuff but don’t know if the ad or adx really amount to anything. I was looking at drive isolation transformers but one vendor told me a drive isolation transformer is simply an oversized transformer? As of now I’m looking at a 30kva transformer where my lathe needs 18kva. The previous owner was running two of these lathes off a 25 hp plane Jane America rotary.
BT Fabrication
Titanium
- Joined
- Nov 3, 2019
- Location
- Ontario Canada
you will be fine with 30 kva, mine is that to step up to 600V and I have a 20 hp rotary on a 100A breaker. 10Hp ran off a 50A breaker single phase no problems.
Ox
Diamond
- Joined
- Aug 27, 2002
- Location
- Northwest Ohio
That Fanuc won't care about 240V.
Everything in my shop is 240 and (big) RPC.
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Think Snow Eh!
Ox
Everything in my shop is 240 and (big) RPC.
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Think Snow Eh!
Ox