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State oscillating spindle sander #1: A new way to run a 3 phase motor

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Blog entry by gpastor posted 10-22-2014 07:12 PM 2723 reads 0 times favorited 7 comments Add to Favorites Watch
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I found this sander on Creaglist a few weeks ago—-
Old state spindle sander, 3 phase, needs repair (bearings?) $300.00

I have been looking for an oscillating spindle sander but I didn’t want one from the big box stores. This one fit the bill but not running and it has a 3 phase motor. Not to good… My thought was to replace the motor, I don’t have 3 phase power in shop anyway. So once I got it all tore down I found that just need cleaned out and new oil added to the gear chamber. That was the good news. The bad news was there was no way to replace the motor. The top of the motor housing was the bottom of the gear chamber, it was one large tube. I have always avoided buying tools with 3 phase power because It was costly to by a phase converter and I. Have very little knowledge about that stuff. After a little head scratching and a little Googling I found a post on vintagemachinery.org That had the same sander but it had an motor mounted on the side of the base. From the picture I could tell this was added to this machine. So I removed the windings from the inside of the motor, that made just enough room to add a 1” pulley inside the motor. Then I cut an opening in the side of the motor to make room for a belt. Next I had to weld up a bracket to hold the new 110 1/2 hp motor. I have to say I had my doubts put it works great.

-- Gray hair is a crown of splendor; it is attained by a righteous life. Proverbs 16:31



7 comments so far

View AnonymousRequest's profile

AnonymousRequest

861 posts in 1011 days


#1 posted 10-22-2014 08:29 PM

I love them State sanders. My Amish friend has one run by a line shaft in his mill. I have an old Boice Crane one, but would trade in a heartbeat for a State. Are you going to paint it or put it to work? It’ll look good either way.

View gpastor's profile

gpastor

176 posts in 2520 days


#2 posted 10-22-2014 09:03 PM

No paint, it took 65 years to get that patina

-- Gray hair is a crown of splendor; it is attained by a righteous life. Proverbs 16:31

View tomd's profile

tomd

2027 posts in 3232 days


#3 posted 10-23-2014 04:05 AM

Very ingenious way of solving the motor problem.

-- Tom D

View RBWoodworker's profile

RBWoodworker

432 posts in 2814 days


#4 posted 10-24-2014 02:40 PM

I have the same Sander but I actually bought a small 3 phase converter that mounts right onto the sander itself that only cost me like $65 new..there’s a company that sells these for small HP motors..and it allows for variable speed too

-- Randall Child http://www.racfurniture.com/

View LJackson's profile

LJackson

295 posts in 1056 days


#5 posted 10-24-2014 02:44 PM

Darn! I was hoping you had a way to modify the 3-phase electrically to run off of 110 or 220 household wiring. I can do electrical modifications, but I have neither the equipement nor the experience to weld, or do any metalwork.

View gpastor's profile

gpastor

176 posts in 2520 days


#6 posted 10-25-2014 06:48 PM

Randall – I have seen that type of converter but I didn’t know if the motor was good. Didn’t want to spend the money on the converter just to find out the motor was bad. It did cost anything to do it this way.

L Jackson look it the converter Randall is talk about is very cool.

-- Gray hair is a crown of splendor; it is attained by a righteous life. Proverbs 16:31

View RBWoodworker's profile

RBWoodworker

432 posts in 2814 days


#7 posted 10-28-2014 04:11 PM

One thing I know for sure is.. don’t mess up those spindles.. there are no more to be had.. I have one that has a little wobble and I wanted to replace it.. nope.. there are none.. if you found anyplace that sells them, let me know

-- Randall Child http://www.racfurniture.com/

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