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Can I use a woodworkers belt/disc sander for metal?

Discussion in 'The Hokey Ass Message Board' started by Nick32vic, Jan 28, 2009.

  1. Nick32vic
    Joined: Jul 17, 2003
    Posts: 3,027

    Nick32vic
    Member

    I found this Reliant DD79 belt/disc sander on craigslist. Apparently Reliant was a brand that some out of business woodworking store sold. I dont do much wood working but Ive been wanting a belt/disc sander for a while. Do you think I could use it to clean up my cuts and stuff when fabricating metal stuff or will it not handle it since its intended for wood?

    Heres some specs.

    Reliant
    Model DD79
    3/4 Horse
    1 Phase
    60 Cycles
    110/220 volt
     

    Attached Files:

  2. Nick32vic
    Joined: Jul 17, 2003
    Posts: 3,027

    Nick32vic
    Member

  3. Tman
    Joined: Mar 2, 2001
    Posts: 33,838

    Tman
    ALLIANCE MEMBER

    Yes, just buy the right shit........Klingspor.com is one. Not to be confused with the kilingons you have
     
  4. hotrod40coupe
    Joined: Apr 8, 2007
    Posts: 2,562

    hotrod40coupe
    Member

    I use belt & disc sanders designed for woodworking all the time. The sandpaper doesn't know the difference and the tool doesn't care.
     

  5. Nick32vic
    Joined: Jul 17, 2003
    Posts: 3,027

    Nick32vic
    Member

    awesome. Thanks guys.
     
  6. I have one,and use it exclusively for metal. It works great.
     
  7. SlowandLow63
    Joined: Sep 18, 2004
    Posts: 5,953

    SlowandLow63
    Member
    from Central NJ

    Ha! :D
     
  8. Here's the deal... try to buy one with the fewest plastic parts. The sparks tend to "reshape" them
     
  9. spooler41
    Joined: Feb 25, 2007
    Posts: 1,099

    spooler41
    Member

    Just thought I'd mention ,you will need to get abrasives designed for metal. D.I.Y stores do not stock much more than wood working belts and discs.

    Good luck ........Jack
     
  10. 60srailjob
    Joined: Nov 14, 2008
    Posts: 1,219

    60srailjob
    Member
    from nowhere

    yes get the right sanding pads and belts...........
     
  11. J&JHotrods
    Joined: Oct 22, 2008
    Posts: 549

    J&JHotrods
    Member

    Norton seems to make the longest lasting belts for metal sanding out there. But if your thin in the wallet, harbor freight sells 'em cheap. I'm waiting for my HF belt to wear out to put the Norton one on, but it's still going strong.


    My .02
    Jay
     
  12. Randy in Oklahoma
    Joined: Sep 18, 2008
    Posts: 301

    Randy in Oklahoma
    Member
    from Oklahoma

    My belt sander gets used about as much as anything on my rod project....
     
  13. Buy a industrial one and then the question will be ""Can I use my industrial sander for wood too ??? >>>>.
     
    Last edited: Jan 28, 2009
  14. I use a small Craftsman (Delta) 4" x 36" with a 9"disc.

    The disc doesn't get used since I have a 12" disc sander.

    What can happen with the woodworking sanders used on metal is the metal 'sawdust' will eventually short the motor out.
    Even so, my first one lasted over ten years and now I'm on the second one.

    The advice to buy metal oriented sanding belts is probably a good one, but the medium grit wood belts last a long time with aluminum and do ok with metal.
    Next time I'm at the Las Vegas HF store, I'll grab some sanding belts for metal.

    Dunno if this will help the LV guys, but the HF store down Sunset from the airport discounts stuff pretty good since they have a competitor not too far away.

    Got some killer prices on some of their special sale stuff when it was discounted even more....
     
  15. Moonglow2
    Joined: Feb 4, 2007
    Posts: 658

    Moonglow2
    Member

    I have often asked myself the same question. I'm glad you posted this and appreciate the answers given. How does the disc mount to the motor on a disc sander? Arbor hole or countersunk screw?
     
  16. hotrod-Linkin
    Joined: Feb 7, 2007
    Posts: 3,382

    hotrod-Linkin
    Member

    that thing would be hard to hold on a quarter panel,,,,,,your arms would give out!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     

  17. The aluminum disc slides onto the motor shaft that has a flat ground - sorta like DD on a steering shaft, but only one side - onto the shaft and is then retained by a headless cup point allen bolt.

    Sometimes the allen bolt comes loose due to vibration.
    An old trick is to add a 2nd allen bolt right on top of the properly torqued one.
    Works well and no hassle during removal.

    The sanding disc proper uses contact cement or nowadays modern replacement sanding discs just stick on kinda like a post-it note.

    Remove protective paper and press in place.

    Check before use each time.
    If part of the disc pulls up it may come off during the initial spin-up to full rpm.

    Nothing quite like getting your arm 'sanded' by a runaway disc....:eek:
     
  18. Nick32vic
    Joined: Jul 17, 2003
    Posts: 3,027

    Nick32vic
    Member

    I was thinking that. The units that my local sears carries look like ALOT of plastic and kind of cheesy for my needs.

    This is the 2nd one I found on craigslist and the 2nd one that sold before I could get it. I guess I have to jump on these deals faster.

    Thanks for the help guys!
     
  19. BISHOP
    Joined: Jul 16, 2006
    Posts: 2,571

    BISHOP
    Member

    me too.
     
  20. speedtool
    Joined: Oct 15, 2005
    Posts: 2,541

    speedtool
    BANNED

    I always did. I figured the sandpaper didn't know the diff.
     
  21. spooler41
    Joined: Feb 25, 2007
    Posts: 1,099

    spooler41
    Member

    Speedtool,sandpaper doesn't know the diff.,it just wears out about 5 times as fast as discs or belts designed for metal.


    ......Jack
     
  22. Tman
    Joined: Mar 2, 2001
    Posts: 33,838

    Tman
    ALLIANCE MEMBER

    I posted this in another thread which I can not find. Fine Homebuilding magazine had a warning article a while back about using the same sander for different materials. Sure you can sand metal or wood with most sanders but when you combine aluminum oxides, aluminum, dirty steel and iron oxide you can in effect create THERMITE on the belt. That is an incendiary component used in bombs. I think back to how many times I have done just this and glad something did not ignite! So, yes you can but use different abrasives dedicated to ONE material only.
     
  23. Nick32vic
    Joined: Jul 17, 2003
    Posts: 3,027

    Nick32vic
    Member

    I know if you use a grinding stone for alluminum it can combust. I wasnt sure about sanding discs and belts. I guess if you get it goin fast enough it can. I could be wrong but I thought that I read somewhere that the reason is because the alluminum melts into the grooves or valleys in your abrasive and just creates friction, if it gets hot enough from the friction it will combust. 53dodgekustom told me about this and I looked into it some more. Scary stuff.
     
  24. Tman
    Joined: Mar 2, 2001
    Posts: 33,838

    Tman
    ALLIANCE MEMBER

    No, it is the compounds together that create Thermite. It is the aluminum powder and Iron oxide powder that combine to create the accelerant Thermite! Now if you also add some wood sawdust it gets even worse, along the lines of a grain elevator explosion!
     

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