Just curious why Dual Cycle...

Whats b/c? All the juicers are AC anyway...if you need DC your models won't work, and you need to talk to me anyway ;)

Do you mean this as you will be running off a generator/off-grid?
Or do you really mean that your power can be 110V or 220V?

Also, the benefits of a masticator (like the Champion) far outweigh any centrifugal.
You can make purees(like baby food), nut/seed milks, sorbets...
Although the Le'Equip does look cute.

Most smaller motors (like the home centrifugal models you named) are not wound to give good field strength for various cycle loads. The Champion has a 'real' tool-quality motor in it...The 'Champion Commercial' can also be wired (by the owner) for 110V & 220V. Very simple ;)

There are power conditioners that will allow you to be independent of Duty Cycle also. Once again though, in my experience, the masticators are tolerant of this affect moreso than centrifugals.

One day I'll have 'live juice' in Jamaica (dream, dreamm).