krooser
Well-known member
I bought this old bench grinder several years ago at a local industrial auction for $35.00. I was hoping it was a 220V 1-ph but it turned out to be 220/440 3-ph. So I parked it under my bench and kinda forgot about it.
A month or so back I decided to start using the 3-ph machines I have in my shop... I used my drill press for a while with a 1-ph motor but I really wanted to re-use the original with the hi/lo 4 speed gear box (20 speeds total)... and I also have a vertical mill, 8X48" belt sander and a few other 3-ph tools that I can use with the proper power.
My plan is to use either VFD's or , maybe, a rotary phase converter to run the tools.
So when I spotted this old grinder I thought I'd get it checked out at my friendly, local electric motor shop just to be sure it worked. I took that motor and the one off my milling machine to the motor shop. he checked both units, changed the wiring to work on 220V 3-ph and called me to have me pick them up... cost $18.50 for his work...pretty cheap. he dated it as being built somewhere between the late 1930's and mid-1940's... this thing may have helped win WWII!
I got home from the motor shop and decided to give the old grinder a freshening... I pulled it apart, put everything in my blast cab for a good cleaning and shot it with some Valspar hammer tone enamel. I used some new fasteners since the old ones were pretty rough... this old girl has seen a lot of abuse over the years. Both end frames have been broken and welded and brazed as have both wheel side shields... but the welding repairs were pretty dog gone good...
Now I have to refinish both of the 110V lighted safety shields and it will await it's new stand that I will build for it. I'll also have to fab a couple tool rests since I never got any. I also need one on my biggest belt sander so I can get some practice in on my mill.
I really like buying and using these great old machines... way better than whipping out the plastic to buy an inferior import wannabe.
A month or so back I decided to start using the 3-ph machines I have in my shop... I used my drill press for a while with a 1-ph motor but I really wanted to re-use the original with the hi/lo 4 speed gear box (20 speeds total)... and I also have a vertical mill, 8X48" belt sander and a few other 3-ph tools that I can use with the proper power.
My plan is to use either VFD's or , maybe, a rotary phase converter to run the tools.
So when I spotted this old grinder I thought I'd get it checked out at my friendly, local electric motor shop just to be sure it worked. I took that motor and the one off my milling machine to the motor shop. he checked both units, changed the wiring to work on 220V 3-ph and called me to have me pick them up... cost $18.50 for his work...pretty cheap. he dated it as being built somewhere between the late 1930's and mid-1940's... this thing may have helped win WWII!
I got home from the motor shop and decided to give the old grinder a freshening... I pulled it apart, put everything in my blast cab for a good cleaning and shot it with some Valspar hammer tone enamel. I used some new fasteners since the old ones were pretty rough... this old girl has seen a lot of abuse over the years. Both end frames have been broken and welded and brazed as have both wheel side shields... but the welding repairs were pretty dog gone good...
Now I have to refinish both of the 110V lighted safety shields and it will await it's new stand that I will build for it. I'll also have to fab a couple tool rests since I never got any. I also need one on my biggest belt sander so I can get some practice in on my mill.
I really like buying and using these great old machines... way better than whipping out the plastic to buy an inferior import wannabe.
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