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De-Airing Pugmill


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If it isn't an integral mount motor it's no problem at all.  Unfortunatelly most small pugmills use integral motors and may not be standard NEMA frames.  Check the motor nameplate for the frame no and start there.  Good Luck.

 

Almost all vacuum pumps now appear to be non-NEMA propietary designs.  Can't imagine why they used 3 phase on that small of a motor. 

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A phase converter converts your 220 to three phase -Its just a device for one machine and lives next to that machine . I have a friend with a 3 phase large bandsaw (he does not have 3 phase in his neighborhood) he starts the phase converter at same time as band saw. Its a spend solution but it may be your only option. Check them out-the pug mill motor plate will help as well as calling the manufacture  for details on solutions.

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  • 2 weeks later...

I have a de-airing pugmill that requires 3-phase power. Does anyone know if it is possible to convert it to something more common like 220? :wacko:

 

220 has nothing to do with the phase. 220 is the voltage, not the phase. And if this is in a home, then you most likely have 240 volt service, not 220. 220 is a generic term, and doesn't exist in many places anymore. Common voltages in the US are 240 and 208. 208 is common in commercial properties, 240 is used in homes and some commercial spaces. 240 and 208 volts can be single or 3 phase, so you've got 4 possible combinations of voltage and phase. Your home has single phase, and your electric company may or may not be willing to give you 3 phase. It would probably be super expensive if they did. A phase converter would probably be the best solution. HERE is an article which explains the difference between types of converters. Talk to an electrician.

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Good article Neal.

 

Don't use a static converter, too many down sides.

 

An inverter, also called a Variable Frequency Drive could work and be much lower in cost than a Rotary.  I found the folks at Factorymation.com to be helpful when I modified some of my woodworking equipment to use VFD's.  What you need would require a 220/240 V single phase input which would give you 220/240 3 phase output (cost $150-$200 for the VFD).  VFD's work by varying the frequency to deliver more or less averaged power and work best with motors as motors don't so much care.  If your pug mill is newer it might have electronics; in which case a VFD might cause you serious issues.  So ask them about your specifics before buying.

 

Rotary converters can also cause issues with electronics as the wild leg voltage can vary a lot from the other two legs; unless you get a unit rated for Computer Numeric Control (CNC) in which case this is tighter.

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