Steve
has rocks in the head
Member since June 2005
Posts: 506
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Post by Steve on Jul 12, 2013 18:24:15 GMT -5
Are the motors in cheap drill presses generally rated for continuous duty? Thinking about use as a tumbler motor.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Jul 12, 2013 22:55:46 GMT -5
Motors rated for continuous duty will say cont. on the I.D. tag. Mine does not, and it isn't a "cheap" one. Given the inherent intermittent use of drill presses, I have my doubts that many,if any, are rated for cont. use.
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Post by Rockoonz on Jul 13, 2013 9:40:16 GMT -5
I would not. You definitely want a thermally protected motor for a tumbler, I'd rather have it shut off than set my shop on fire. Shops and houses can be replaced, but it's hard to get all that soot off the rocks Lee
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Steve
has rocks in the head
Member since June 2005
Posts: 506
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Post by Steve on Jul 13, 2013 12:40:46 GMT -5
Thanks for the info. Yes, it seems that many of the motors on cheap equipment are unlabeled. I'm going with a 1/4 hp Dayton rated for continuous duty with auto thermal protection - same motor I used on my last tumbler rebuild.
I connect all my equipment through GFCI. I know that this is not thermal protection, but I've noticed that when my saw binds up that the GFCI usually kicks in before the red button pops on the motor. Thankfully this is a very rare event.
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Jul 13, 2013 23:24:13 GMT -5
Good choice Steve, the few extra bucks is well worth it for safety and durability.
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