What I'm wondering about it the torque. If say I slow down our bandsaw by 25% would the torque decrease or stay the same. I'm using a bandsaw to cut brass and have slowed it down with an idler pulley and its just fine but occasionlly I need to cut material a bit harder and its wearing the blades. I'm using 1/16 blades and they don't take running hot too well. I want to be able to switch to my SCR circuit and dial the speed I want when I have to cut this other material. Ken
Slowing down an AC motor with an SCR
Nov 09, 2005
3 Replies
Burning out the windings of an AC motor with an scr is a more apt title.
Many bandsaws use what are called squirrel cage AC motors. These are not amenable to speed control, whether by SCR or any other method. If you have a small bandsaw whose motor has brushes on it like a drill motor, then you may be able to speed control it, because it actually isn't an AC motor at all, it's a DC motor which is universally wound.
I take it you want to slow down the bandsaw's cutting speed to cut steel?
GWE
snipped-for-privacy@yahoo.com wrote:
i take it you want to slow down the bandsaw's cutting speed to cut steel? No German Silver which needs to be 25% slower on our machine. Maybe I need to find another motor thats laying around here
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