The 3 phase makes no difference
It's still a "hobby" size shaper, I have a 1 HP Craftsman with a 1/2" spindle and it's pretty much useless. I could recommend A Grizzly 3 HP for more of a commercial shaper, but it's at the very low end for those. When I was setting up a milling room in my shop I had 2 of the 3 Hp Grizzlys but that idea never did come to fruition. They seem very well made and for the price, I was impressed.... under $1000.00.
Used Rockwells or Deltas or Bridgewood, or SCMI would be a better industrial shaper.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
Last edited by woodnthings; 06-26-2017 at 08:44 PM.