Motor Controller, 3501 Spindle CLEARANCE

For a clearance item, I wasn't expecting much, but the KZ500-1/110v label matches the 3501 spindle perfectly and it fired up without a hitch. The connector seated snugly, and I’ve already run a few milling passes with zero hiccups. Honestly, a steal for the price.

Plugged this KZ500-1/110v controller into my 3501 CNC spindle and it fired right up with no fuss. For a clearance item, the fit and function are perfect.

My old spindle driver finally gave out, so I grabbed the KZ500-1 clearance unit as a direct replacement for my 3501—it bolted right up with no wiring guesswork. It runs the spindle smooth and cool during long cuts, which is exactly what I needed for the price.