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Projects Anybody plagued with cutting wheel explosions !!!

Discussion in 'The Hokey Ass Message Board' started by 6sally6, Oct 12, 2023.

  1. HOTRODNORSKIE
    Joined: Nov 29, 2011
    Posts: 451

    HOTRODNORSKIE
    ALLIANCE MEMBER

    When the purple curators first came out 3M sent over a box to try nobody in the shop liked them they smoked and wire down fast we kept the green corp. A few months later the 3M rep was in asked me how a liked them told him the green was still better he said it was how you use the and if you guys would leave the guards on we wouldn't have to worry anyway I the told him I sill had my guard on the idiot then bet me a box of green I opened my box and showed him he said in his 3 states nobody ever had a guard on sent me a box of green Corp that I took home.
     
    alanp561 likes this.
  2. HOTRODNORSKIE
    Joined: Nov 29, 2011
    Posts: 451

    HOTRODNORSKIE
    ALLIANCE MEMBER

    I ment cubatron dam spell check
     
    leon bee and alanp561 like this.
  3. I’d bet 99% of issues are user error
     
  4. saltflats
    Joined: Aug 14, 2007
    Posts: 12,659

    saltflats
    Member
    from Missouri

    Thinking back, I can say that I have never had one explode on me. I have had some cheap one wear down so quick they may as well just exploded.
     
  5. 1971BB427
    Joined: Mar 6, 2010
    Posts: 8,892

    1971BB427
    Member
    from Oregon

    No problem sharing them.
    They are Metabo .040" x 7/8" centers, 4.5" diameter. Not sure everywhere sells them at the price my welding supplier does? Most places online sell them for $1.50-$2.00 each.
     
  6. 49ratfink
    Joined: Feb 8, 2004
    Posts: 19,017

    49ratfink
    Member
    from California

    I used up a truckload of 4" cut off wheels when I was doing rust repairs for several years... should have bought a Beverly shear but that's another story. I used nothing but Harbor Freight wheels. made so many sparks the drain on my washing machine got clogged with a bunch of shavings rusted together like a metal turd and flooded my shop.

    never had one explode completely. a chunk would come off every now and then, but I just kept using them.

    1. if all you can see of the wheel is the thin edge you are in the wrong spot. this is true for any spinning tool.
    2. they only cut straight.
    3. the tool and the wheel determine the speed of the cut, not you.

    that's how I got it figured anyways.
     
  7. WhitewallWill
    Joined: Mar 5, 2014
    Posts: 651

    WhitewallWill
    Member
    from N. Van, BC

    I buy Walter or Jet disks only and I've bought a lot. I've gone through 50-100 in the past 9 months. I always take the disk off the grinder to store as it is the bumps and drops that crack them. I always make sure to install label facing down while installing the nut that way it always cuts in the same direction. Lesson for me was I went to our supplier to buy a tin of 10 disks and they were out of the brand I normally buy so I bought 3 thin kerf Diablos to cut the casing for diwedages which is about a 5" dia 1/4" wall pipe. I installed the first disk turned it on and in the process of flipping the grinder around to cut upside down (sometimes ya gotta do it) I barely touched the pipe while it was running and the damn thing blew - I had a guard on one of the grinders. The other fellow beside me 10' away did not have a guard because he couldn't fit it into the form we had built and the same thing happened to him an hour later. I walked over, grabbed the 3rd one and flipped it into the hole the pile driver was working in.
     
  8. patterg2003
    Joined: Sep 21, 2014
    Posts: 871

    patterg2003

    My work places used Walter zip cuts with no issues so I use them at home. They cost more but are efficient and last longer. My workplaces had a mandatory face shield with safety glasses policy when using a side grinder or grinder. A wire brush in a side grinder has its hazards. My brother in law said his partner wasn't wearing his face shield had a wire wheel come apart and the side of his face was like a porcupine. The papermill had a Safe Start program that everyone who uses tools should take especially the line of fire. Before starting look around, check your surroundings, and where others are for line of fire. Make sure that sparks are not going at people or any possibility of sending something flying at yourself or anyone else. The position of the body in relation to the tool for kick backs. One boiler maker had his side grinder kick back to cut his face shield. I won't have any part in line with chainsaw because of kickbacks.
     
  9. I buy all my grinding/ cutting wheels at a welders supply . Don't remember the brand name but they are either made in USA or Italy and I ALWAYS wear a face shield and gloves when using a grinder.
     
  10. noboD
    Joined: Jan 29, 2004
    Posts: 8,530

    noboD
    Member

    Walter or Metabo 6 inch wheels for me. Has anyone light a flannel shirt on fire from sparks? It doesn't burn the whole shirt just glides along the fuzzies REAL fast.
     
  11. spanners
    Joined: Feb 24, 2009
    Posts: 2,177

    spanners
    Member

    Been there, done that. Impressive but scary.
     
  12. alanp561
    Joined: Oct 1, 2017
    Posts: 4,811

    alanp561
    ALLIANCE MEMBER

    Try catching a cup brush on a side grinder on the edge of a piece of steel and having it come back and rip the front out of your Levis and tear your skivvies off at the same
    time :eek::eek:. What @Bandit Billy said about not wanting to look to see if his guts were hanging out applies to one's family jewels :eek::eek:.
     
  13. banditomerc
    Joined: Dec 18, 2005
    Posts: 2,511

    banditomerc
    Member

    I use HF all 90% of the time. The only time a cut off wheel blew up was when i twisted or contorted the wheel or pushed on it..lesson is dont bind wheel and let the wheel cut at its pace...not yours..
     
    clem, alanp561, Bandit Billy and 3 others like this.
  14. 49ratfink
    Joined: Feb 8, 2004
    Posts: 19,017

    49ratfink
    Member
    from California

    ...yeah, what he said.
     
    anthony myrick and alanp561 like this.
  15. alanp561
    Joined: Oct 1, 2017
    Posts: 4,811

    alanp561
    ALLIANCE MEMBER

    "One Tit Willy", now there's a name for you ;).
     
    ekimneirbo likes this.
  16. I had our safety person who was fresh out of school google mini grinder accidents and do a talk with the guys in the shop about ‘line of fire’ when using power tools. Use guards, safety glasses and a shield and stay out of the ‘line of fire’. One thing to get a scar on your check. Imagine if it hit your jugular. Game over.
    Buy quality discs. Probably should protect your your lungs as well.
     
  17. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 4,480

    ekimneirbo

    Which brings to mind ..........wire brush wheels. I have an old Milwaukee large electric angle grinder that I keep a 6" wire brush on for cleaning rust off steel. That thing will bite and jump and catch your clothes. Since the normal mode of operation ends up being about crotch high, I always turn sideways when using it. Definitely don't want it grabbing anything about crotch high.............:rolleyes:
     
    alanp561 likes this.
  18. Never had an issue so far, even with discs of unknown origin.

    I suspect tool usage technique - excessive pressure, binding, etc. - plays a big roll in disc destruction.
     
    clem, 49ratfink and Clydesdale like this.
  19. topher5150
    Joined: Feb 10, 2017
    Posts: 3,407

    topher5150
    Member

    I've only used cheaper cut off wheels and had them break apart on me but never explode.
     
  20. edcodesign
    Joined: Mar 30, 2007
    Posts: 4,758

    edcodesign
    ALLIANCE MEMBER

    Got one in my garage ! IMG_2813.jpeg
     
    alanp561 likes this.
  21. Made in China , designed to wound Americans?
     
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  22. nochop
    Joined: Nov 13, 2005
    Posts: 3,975

    nochop
    Member
    from norcal

    What am I doing wrong? Never had one explode. I use ones I get on amazon
     
    49ratfink likes this.
  23. 49ratfink
    Joined: Feb 8, 2004
    Posts: 19,017

    49ratfink
    Member
    from California

    you are just not trying hard enough.
     
    clem likes this.
  24. nochop
    Joined: Nov 13, 2005
    Posts: 3,975

    nochop
    Member
    from norcal

    Ok, I’ll give it a go
     
    49ratfink likes this.
  25. 6sally6
    Joined: Feb 16, 2014
    Posts: 2,544

    6sally6
    Member

    To-MA-toe/To-Mah-toe.........explode/disintegrate/fly apart/break apart...
    6sally6
     
  26. twenty8
    Joined: Apr 8, 2021
    Posts: 2,489

    twenty8
    Member

    It's "Murphy's Law"...... They wont fail until you remove the guard.............:rolleyes:
    Their failure rate is also proportional to the user's expectations of what they can be made to do.
     
    49ratfink, nochop and 05snopro440 like this.
  27. nochop
    Joined: Nov 13, 2005
    Posts: 3,975

    nochop
    Member
    from norcal

    I don’t even know where the guards are lol. I’ve been pulling the guards off for 40 years….gonna catch up to me sooner or later.
     
    leon bee likes this.
  28. stanlow69
    Joined: Feb 21, 2010
    Posts: 7,348

    stanlow69
    Member Emeritus

    Ian Rousel lives on the wild side of danger. At least in his earlier episodes.
     
  29. twenty8
    Joined: Apr 8, 2021
    Posts: 2,489

    twenty8
    Member

    If it does, it will most likely hurt.........
    [​IMG]
     
    05snopro440 likes this.
  30. leon bee
    Joined: Mar 15, 2017
    Posts: 872

    leon bee
    Member

    First time I ever saw one of those discs with the chainsaw teeth all around I says I ain't EVER gonna own one of those.
     
    V8-m likes this.

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