Grinders and Grinder Mods

[Mark Reich]

Here are some pics of my first grinder, a Coote 2x72 with a 3ph 3hp 220v Marathon type-TS motor running through an Allen-Bradley VFD. It is a high speed motor, but as you can see, the pullys are stepped down for optimal SFPM. It's been running perfectly for about 7 years with just a dust shield over the motor. 

It's very stable and well balanced on the simple stand alone base. It pivots fore and aft, which makes it easy to work on the 10" contact/drive wheel or small wheel attachment. The adjustable work rest and large platen are very sturdy.