WARNING - ANGLE GRINDER DISC PROBLEMS
Discussion
Mods, not sure where to put this but may duplicate it in my usual forum.
A friend has recently purchased some angle grinder metal cutting discs from a well known retailer.
Three of them "exploded" shortly after starting to use them, the first one while his dad was using it, then the second and third when he was using it. The third one has ripped into his hand causing damage to tendons etc.
Now these discs had a stuck on expiry date label on them showing them current but the label is stuck over a date in 2010.
Now I'm not sure why angle grinder discs would deteriorate with age but BE WARNED.
If you want to know the store or if you have had a similar problem please pm me
A friend has recently purchased some angle grinder metal cutting discs from a well known retailer.
Three of them "exploded" shortly after starting to use them, the first one while his dad was using it, then the second and third when he was using it. The third one has ripped into his hand causing damage to tendons etc.
Now these discs had a stuck on expiry date label on them showing them current but the label is stuck over a date in 2010.
Now I'm not sure why angle grinder discs would deteriorate with age but BE WARNED.
If you want to know the store or if you have had a similar problem please pm me
I think you should mention where you bought them from as the supplier is completely at fault here for selling items that are past their expiry date.
Very worrying as I just bought an angle grinder and discs from a large DIY store and never thought it was necessary to check expiry dates on discs!
Very worrying as I just bought an angle grinder and discs from a large DIY store and never thought it was necessary to check expiry dates on discs!
Silverdaz said:
They are made from root vegatables, potatoes etc. So the date is very important as the materials breaks down over time.
Ive been using the ones i found in the old man's shed, that are years old. didn't realise they had a date on them!
I think i might give them back, if thats the case.
Jamz3k said:
I think you should mention where you bought them from as the supplier is completely at fault here for selling items that are past their expiry date.
Very worrying as I just bought an angle grinder and discs from a large DIY store and never thought it was necessary to check expiry dates on discs!
As said though, before we go sticking a name in lights, lets make sure it was right the disc for what was being cut and the correct rpms for the machine being used.Very worrying as I just bought an angle grinder and discs from a large DIY store and never thought it was necessary to check expiry dates on discs!
Skyedriver said:
A friend has recently purchased some angle grinder metal cutting discs from a well known retailer.
Three of them "exploded" shortly after starting to use them, the first one while his dad was using it, then the second and third when he was using it. The third one has ripped into his hand causing damage to tendons etc.
I'd love to know the rationalisation that went into fitting the 2nd and 3rd discs after the first one disintegrated!Three of them "exploded" shortly after starting to use them, the first one while his dad was using it, then the second and third when he was using it. The third one has ripped into his hand causing damage to tendons etc.
I have to admit, I have never seen a Disc shatter in all the years I've been working with them, and in seeing them used!
Were they Cutting or Grinding Discs? There is a big difference in them, and if you are using a Cutting Disc heavily handed to grind with, this could exert too much force laterally on the disc. Equally, as has also been stated before, the speed rating is very important on the Discs. Cheapo Discs, coupled with a machine of good caliber with good torque, will not make for a happy user!!
I've pulled a few guys up over the years for dropping Grinding Machines and damaging the Discs. Fortunately they then changed them on my instruction, so can't comment on the outcome. I have worked on over 100 sites in the Oil and Gas Industry, and have seen countless Safety Induction Presentations, and they almost always include someone who has had a Grinder Disc explode on them!
Were they Cutting or Grinding Discs? There is a big difference in them, and if you are using a Cutting Disc heavily handed to grind with, this could exert too much force laterally on the disc. Equally, as has also been stated before, the speed rating is very important on the Discs. Cheapo Discs, coupled with a machine of good caliber with good torque, will not make for a happy user!!
I've pulled a few guys up over the years for dropping Grinding Machines and damaging the Discs. Fortunately they then changed them on my instruction, so can't comment on the outcome. I have worked on over 100 sites in the Oil and Gas Industry, and have seen countless Safety Induction Presentations, and they almost always include someone who has had a Grinder Disc explode on them!
I'd say it was more a case of a cack handed user, rather than faulty discs. Cutting discs can be very thin and don't take well to misuse in the wrong material, too much pressure, lateral or bending forces, or use in twin wall cutting (e.g. pipe) where snagging is more likely. The fact that he clearly didn't have the correct protective equipment, guards, environment, stance etc. to avoid injury anyway, speaks volumes. Angle grinders are vicious tools in the hands of the stupid.
The guy who this happened to is a competent home mechanic, car enthusiast sort of a guy who enjoys modifiying end engineering in general. He is old enough to know what he is doing with the equipment. He tells me that the disc and equipment were compatible.
the first disc he used exploded, the second was the one that did the damage, when he spoke to his father, who had used the grinder previously he was told, that the disc in the grinder had done that to him and he had bought another disc as my friend had only given him one disc when lending the tool.
I won't give out the name of the company in case it causes problems for Pistonheads or whatever however he has been back to the store today and they accepted that the discs expiry date had been modified.
What they were intending to do I don't know at present but I may well call in there tomorrow to see if they are still on the shelf.
Just check the discs you are using to make sure the expiry date is still valid AND THERE IS NOT SIMPLY A STICKER WITH A NEW DATE STUCK OVER THE OLD DATE
the first disc he used exploded, the second was the one that did the damage, when he spoke to his father, who had used the grinder previously he was told, that the disc in the grinder had done that to him and he had bought another disc as my friend had only given him one disc when lending the tool.
I won't give out the name of the company in case it causes problems for Pistonheads or whatever however he has been back to the store today and they accepted that the discs expiry date had been modified.
What they were intending to do I don't know at present but I may well call in there tomorrow to see if they are still on the shelf.
Just check the discs you are using to make sure the expiry date is still valid AND THERE IS NOT SIMPLY A STICKER WITH A NEW DATE STUCK OVER THE OLD DATE
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