I’m in the process of building a Precious Plastics Shredder in order to regrind plastic molding flash for compression molding.
I came across a 5 HP single phase 220 motor and was curious if anyone had any advice for controlling speed. It seems like I would be better off getting a 5HP three phase motor and a 5HP VFD for more precise control of speed and direction as well as auto shutoff and reverse for safety purposes. It seems as if there are not really VFD’s for single phase motors, but I’m learning most of this as I go so i could easily be confused. Would anyone have any advice or thoughts about this.
Similarly, my thinking is to weld a frame and use an industrial chain and sprocket to transmit power from grinder box to motor. Does that seem reasonable?
I’m also looking at pregeared motors such as these https://www.grainger.com/category/power-transmission/gearmotors/ac-gearmotors
I definitely need more torque than speed and would love the run the unit on 110. Does that seem possible or would going to three phase 220 running through a VFD be my only real choice?
Any advice or thoughts would be greatly appreciated!