Another 'completely serious angle grinder query'

Apr 29, 2015 5 Replies

This one relates to how fast angle grinders go.



A friend has bought a device from Arbortech that is a sanding pad that is a n attachment to an angle grinder - it vibrates rather than revolves. He fi nds it very effective but was looking to use it in a piece of woodwork wher e a flexible drive would give better access. He has a suitable drive which he ran off a corded drill but found it didn't do the biz -there seems to b e some centrifugal mechanism in the sander head.



This is an old drill and he reckons it only goes at 900rpm - my fairly rece nt one says 3000 which might be enough. However looking at my 4.5 inch ang le grinder it says 10,000 revs - is this really the disc speed or is this t he motor speed ?



Rob



ps I think my typo in the header of 'angel grinder' might have produced a m ore entertaining thread !!


Yes, that's the disc speed...

And don't try to connect a flexible drive to it!

To begin with I took that on board, but when preparing to pass that advice to the owner of the Arbortech thingymebob, it did come to mind that Dremels use flexible drives and they run up to 30,000 revs.

And don't have a fraction of the rotating mass.

one says 3000 which might be enough. However looking at my 4.5 inch angle grinder it says 10,000 revs - is this really the disc speed

no they just make stuff up randomly

the motors can go faster

NT

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