I am constantly trying to ensure that my HAVS monitoring is as accurate as I can make it on the budget I have, and have all of the data supplied by the manufacturers of the grinders we use, including 4.5", 9", pin grinders and air driven pin grinders. The issus I have is that I am finding it nigh on impossible to get any information from suppliers or manufacturers of the tools used on these, for instance, wire cup brushes, cutting discs, grinding discs and sanding pads for 4.5 & 9"grinders, and grinding stones, flap wheels, steel bits etc for pin grinders.

Having previously used all of these myself on the tools, I am acutely aware that the vibration levels are not the same for different tools on the same grinder. However, I would like to gain more accurate information on this but the suppliers of these parts are all telling me they are not required to give a M/S2 rating for their products.

Can anyone offer any advise (other that spending a fortune on a vibration monitor (we already have a trigger time monitor but this only records time not actual vibration levels))

Thanks in advance.

Please don't waste any more money on measuring the problem, the following has all the practical information and advice you need to "reasonably" manage the situation:

www.hse.gov.uk/vibration/hav/source-vibration-magnitude-app3.pdf

If your pupose to more accurately measure the emmission level (which will change every day, with every person, with every different disc and material combination = not practical to measure) is due to your current usage Vs exposure being too close the the limit level, spend your time and money on reducing the exposure (remove need for grinder use - use alternative tools or methods for weld preparation, not buying "green" materials etc...) instead of measuring - which will not solve anything and will still require you to do all practical methods of reduction anyway.

Apologies for the grumpy reply, full of cold....

Although Im not an expert in pipe cutting, I know in our similar operations we used something alike the:

https://www.dwt-pipetools.com/en/pipe-cutting-beveling/pipe-cold-cutting/pipe-cold-cutting-machine/

system, to prep pipes, note this one can do "radial severing of pipes, simultaneous cutting and beveling pipe, end forming before weld preparation, inside-turning of pipe ends, flange facing for repair of flanges on-site" if your concern was over a flat cut not being suitable?  They also have systems for "Pipe Chamfering" - you might find it even quicker and consistant than using a grinder - we did this for nuclear quality welds.

That was just the first result from google, I was just suggesting there may be an alternative system out there to avoid grinder use - perhaps not completely but even if it was for 25% of the time that would be significant?

Originally Posted by: descarte8

Although Im not an expert in pipe cutting, I know in our similar operations we used something alike the:

https://www.dwt-pipetools.com/en/pipe-cutting-beveling/pipe-cold-cutting/pipe-cold-cutting-machine/

system, to prep pipes, note this one can do "radial severing of pipes, simultaneous cutting and beveling pipe, end forming before weld preparation, inside-turning of pipe ends, flange facing for repair of flanges on-site" if your concern was over a flat cut not being suitable?  They also have systems for "Pipe Chamfering" - you might find it even quicker and consistant than using a grinder - we did this for nuclear quality welds.

That was just the first result from google, I was just suggesting there may be an alternative system out there to avoid grinder use - perhaps not completely but even if it was for 25% of the time that would be significant?

Like I said previously, we don't have straight (this includes with bevelled edge) cuts, they are shaped to wrap around the pipe they are welding to to make Tee sections so this machine is of no use for those tasks. But thanks for the info.