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Belt Grinder Upgrades!! 6HP Motor and VFD Speed Controller

Rescue & Restore Channel

4y ago Instant removal

Motor swap on my big belt grinder to install a huge 4.4Kw (5.9hp) three phase motor controlled via VFD to enable speed controls.
The dial I made reads "surface feet per minutes" SFPM, calculated from wheel diameter and motor speed (RPM). Belts of different grits and grit kind come with suggested SFPM for best performance and longevity.

Thanks a lot for watching, I hope you liked the video!
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0:00 Old vs new motor
0:36 Drive wheel mold
2:02 Aluminum cast
3:11 Drive wheel machining
5:46 Drive wheel on new motor
6:22 Control box
7:11 Speed Controller
8:25 Test