3-phase to 240v

[daryl@kit-chens]

G’day Folks
Im seriously looking at purchasing a Mini Max combo machine that’s in pretty good nick. However it’s on 3-phase and I’ve only got 240 volts in my home workshop. Does anyone have any idea how much and how successful changing it to a single phase 240v would be?

Any input will be welcomed. Thank you.

[jms_8087]

Depends what type of motor is on it but you may be able to use a VFD.

Have a look at this thread there is an abundance of info.


http://www.woodworkforums.com/f271/vfd-install-summaries-213878?highlight=clearvue

[BobL]

I don't now about the MMC but the combination machines I've looked at have all used a 415V delta wired motor which cannot be converted to run-on 240V 3P.

[ian]

two potential issues
how many motors does the machine have? -- depending on their size and the way they are mounted, you might be able to swap them out for 240V single phase motors -- the cost would likely be significant

will the 240V supply to your garage support the current draw of either a VFD or a 5 or 6 kW single phase motor? plus lights and a dust collector?


If the mini-max is at an attractive price, wiring the workshop for 3 phase might be a good option.

[hurcorh]

Phase converter another option.

[daryl@kit-chens]

Thanks Hurcorh.
I was thinking of one of these but I’m not sure of how successful they are. Do you know what they’re like?

[Chris Parks]

Phase converters are widely used in the US as three phase is not very common, people commonly build their own out of used motors for very cheap costs.