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Vintage Walker Turner 4" bench jointer --bench grinder

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Forum topic by bons posted 11-23-2013 06:03 PM 1778 views 0 times favorited 10 replies Add to Favorites Watch
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bons

34 posts in 1406 days


11-23-2013 06:03 PM

I am setting up a woodworking shop. These were my father’s “back in the day”. I have them set up as a remembrance and not really for practicle use. However, the motors I am using seem inadequate for proper operation. What motor size and what RPM would you all recommend for proper operation. I have an old Westinghouse 1/4 HP/1725 RPM small motor on the jointer and the results are not very good. Any thoughts?


10 replies so far

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JustJoe

1554 posts in 1506 days


#1 posted 11-23-2013 07:43 PM

There are other Walker Turner jointers on OWWM, but no manuals. One of the pics describes their 4” as having a 1/6hp motor, so a 1/4 should be powerful enough. 1725 by itself isn’t fast enough though. What size pulley do you have on the motor and on the jointer? And is it a 2 or 3 blade cutterhead? I ask that because the best speed for jointing is measured in cuts per minute and if you can get all the specs then there are people here who can easily tell you what pulley to make bigger, or if it would be easier to just slap a 3450 motor on instead.

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bons

34 posts in 1406 days


#2 posted 11-23-2013 10:33 PM

I think you are right on the RPM-HAS 2 Blades that I had sharpened so it’s not the blades. What RPM would you recommend for the vintage bench grinder?

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Don W

17971 posts in 2035 days


#3 posted 11-23-2013 10:47 PM

The bench grinder speed can vary. I just did a quick search and a craftsman variable speed grinder came up at 2000 to 3450 RPM. Slower speed is better for sharpening, faster speeds are better for general grinding and shaping.

-- Master hand plane hoarder. - http://timetestedtools.net

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bons

34 posts in 1406 days


#4 posted 11-23-2013 10:48 PM

Thanks!

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JustJoe

1554 posts in 1506 days


#5 posted 11-23-2013 11:14 PM

newer, bigger models say they get a much as 18K cuts per minute. With a 2-blade cutterhead that would be 9,000 rpm. That’s probably a big fast for a vintage machine, especially not knowing the condition of the original bearings and what they were rated for. It’s just a guess, but I think you need to get up around 10-12K minimum cpm, and that would be 5-6000 rpm. That means something like a 3450 rpm motor with a pulley on the motor that is twice as big as the one on the jointer which would get you 6900 rpm.

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bons

34 posts in 1406 days


#6 posted 11-23-2013 11:26 PM

I am not sure the bearing would hold up but I think you are spot on increasing the RPM. I am going yo look for a motor on EBAY. Thanks again.

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JustJoe

1554 posts in 1506 days


#7 posted 11-23-2013 11:29 PM

surpluscenter.com is another good source for motors, and they’re all new.

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Adam

46 posts in 2621 days


#8 posted 11-23-2013 11:38 PM

Are the blades sharp? Also check the depth of cut, should be taking a very light cut

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bons

34 posts in 1406 days


#9 posted 11-23-2013 11:41 PM

Yes—had blades sharpened. I agree on very small cut.

View Rick M's profile

Rick M

7935 posts in 1848 days


#10 posted 11-24-2013 04:14 AM

I like that old bench grinder. Looks like it will handle some good size wheels.

-- http://thewoodknack.blogspot.com/

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