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Thread: Almost Finished with 2" x 72" Belt Grinder Build

  1. #11
    Supporting Member bobs409's Avatar
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    Nice! I did one myself but made all the pieces myself including the wheels! It added to the time line but was a lot of fun. My 2 x 72 can be seen here:
    2 x 72 inch Revolution Belt Grinder (aka The Metal Muncher!)

    If your like me, next you will be building all kinds of accessories to go with it. I did everything but a buffing wheel and surface grinding attachment. I too did the 7 inch wheel and it's CRAZY fast! Too fast I think, I usually run only about 1/2 way.

    I see your trying to control the dust. That's a big issue with these! I take mine outside every time I want to use it which is a pain. I was thinking of building a tent over mine but I like your idea of a box. Rig in a shop vac and you might just have something there!

    Well, don't let me keep you, get back to work. lol

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    Supporting Member tmate3's Avatar
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    Bobs409:

    Am I correct in assuming that you have or had a 409 Chevy?

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    bobs409 (Feb 20, 2021)

  4. #13
    Supporting Member bobs409's Avatar
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    Quote Originally Posted by tmate3 View Post
    Bobs409:

    Am I correct in assuming that you have or had a 409 Chevy?
    Have. I have a 63 400hp 409 engine that I put in my 66 Chevelle SS. I'm also the owner of the 348-409.com website. We have a great forum for these old Chevy's.

  5. #14
    Supporting Member tmate3's Avatar
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    Quote Originally Posted by bobs409 View Post
    Have. I have a 63 400hp 409 engine that I put in my 66 Chevelle SS. I'm also the owner of the 348-409.com website. We have a great forum for these old Chevy's.
    Back in the sixties I had a '62 Impala that came with a 327/300. I swapped a guy whose wife was complaining for his '63 409/425 engine. Miss it every day.

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    bobs409 (Feb 20, 2021)

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    Supporting Member Saltfever's Avatar
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    Quote Originally Posted by tmate3 View Post
    (edit . . . ) With a 7" drive wheel top speed is just over 6,500 sfpm (surface feet per minute). I haven't tried grinding anything yet above maybe 3,000 sfpm, but with a 36 grit belt even that was scary fast at removing steel.
    I have always used the yardstick of 4,000-4500 max FPM and 1HP per inch of belt width. It is a beautiful and versatile grinder design, but as you indicate, 74 MPH seems a bit much.



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