Belt Grinder

[dallen]

(06-10-2015, 01:07 PM)DaveH Wrote:

(06-06-2015, 10:48 AM)dallen Wrote: Hope 3400 RPM motors are cheaper there then they are here.

Gosh David you're right ........... 3 phase motor do seem much cheaper here, however they are 2840rmp, and are 220v.

DaveH

I have a 1750 rpm motor on my belt grinder it works ok, but could use the extra speed.

But seeing as how its a 3 phase motor I could hook it up to one of the VFDs that I have and run it at 120 hz which would run the RPM up around 3400.

But for what I do with it I can afford to buy a new belt a little quicker then if I had the extra RPM.


I'm going to have to try Vinney's trick on making a soft rubber covered contact wheel, mines just bare aluminum that I cast and machined out it works is all I care about, that and the belt staying on