Drip Proof motor on cutting tools?

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Forum topic by ToddJB posted 11-05-2012 06:53 PM 1195 views 0 times favorited 8 replies Add to Favorites Watch
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7984 posts in 2155 days

11-05-2012 06:53 PM


I have some old delta tools with old under powered delta motors. I have the opportunity to buy a 1HP Dayton motor for $10 that I can put on my Bandsaw (currently 1/3hp) or Lathe (currently 1/2hp). I know the ideal is to put TEFC motor on these type of machines to keep the dust out, but the old motors are both vented and they still run fine. How big of a deal is TEFC? Am I waisting my time wiring it up and mouting the Drip Proof? If it is a big deal has any one made a successful sheild that allows air but keeps out dust?

I know little about this topic so any thoughts are welcome.

-- I came - I sawed - I over-built

8 replies so far

View Swyftfeet's profile


170 posts in 2196 days

#1 posted 11-05-2012 07:06 PM

It’s piece of mind. The price point difference over the MTBF is a no brainer to get TEFC when purchasing new…

That said if you can get a deal $10 for 1 hp that will mount without any issues then your doing well enough to go thru 20 of them before you lose… for get the home made dust barrier, it will make it harder to blow out with your compressor.

Food for thought.

-- Brian

View Fred Hargis's profile

Fred Hargis

4999 posts in 2518 days

#2 posted 11-05-2012 07:11 PM

I think you’ll be fine with OPD . My Delta contractor saw had one, and i used it 6-7 years (even after I boxed in the motor for DC) with no problems. My 5 HOP DC has one, as does my RAS. I think my Delta band saw came with one that I switched to TEFC when I upsized it. I sold that motor, so I’m going from memory. My Delta drum sander also appears to have one on it…no problems with any of them.

-- Our village hasn't lost it's idiot, he was elected to congress.

View knotscott's profile


8056 posts in 3400 days

#3 posted 11-05-2012 07:14 PM

Blow the dust out once in a while, and it should be fine….we survived for decades with them before TEFC became the norm.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View muleskinner's profile


896 posts in 2461 days

#4 posted 11-05-2012 07:20 PM

What Knotscott said. Old motors are pretty damn durable.

-- Visualize whirled peas

View Loren's profile


10476 posts in 3672 days

#5 posted 11-05-2012 07:22 PM

I have had a lot of motors that weren’t TEFC and they hold
up ok. For $10 it is a good deal if it runs.

View ToddJB's profile


7984 posts in 2155 days

#6 posted 11-05-2012 07:26 PM

Yeah, this confirms my assumptions. Both of those delta motors were caked full of saw dust when I got them and were still working fine, but I didn’t know if they made them beefier back in the day to combat the dust, as to where newer ODP’s weren’t created to handle as much since the advent to TEFC.

-- I came - I sawed - I over-built

View runswithscissors's profile


2764 posts in 2049 days

#7 posted 11-18-2012 06:56 AM

Years ago I put a 1.5 hp Craftsman motor (220 v.) on my TS. It was the open/drip proof style. It did have a tendency to occasionally get a crumb of dust in between the contact points in the saw’s starter mechanism. I’d have to partially disassemble it to get that little crumb out before it would start up again. Happened maybe a half dozen times or so over a period of years. Otherwise, I never had any issues with that type of motor.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View dhazelton's profile


2771 posts in 2321 days

#8 posted 11-18-2012 12:53 PM

I don’t know why someone would say ‘skip the dust shield.’ should be pretty easy to take some heavy sheet metal and make up a simple guard to keep the heavier stuff out. Especially if the motor sits on a shelf under the tools themselves. I’ll take a ten dollar 1 hp motor any day of the week.

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