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Concrete grinding options

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Thanks but I have a vac for the job and I may only need the the pad for 1 hour and then I do not mind it sitting in my tool box for a few years before I need it again. Equally I do not mind a very cheap one that will only last the one job.
What I am worried about is a very cheap one disintegrating itself rather than the concrete..
 
Not even a Cheap grinding cup will be weaker than the concrete, they’re very aggressive.
Should really be used with a variable speed grinder with high torque, something like a flex.
A lot of 125 discs will fit inside a 115 cowl.
I put 125 discs on my 115 grinder quite frequently.
There’s no real shortcuts unless you try going at it with an SDS drill with a scutching comb.
 
Odd, I googled variable speed and it came up with that one but it was an old BandQ page where it was only £33 and in the specs it says
3000-11000rpm
but all stores say not stocked, guesing the offer is off because I end up finding it at £43 but no mention of 3000-11000 BUT the vid shows a speed control but you can not see it on the static picture. Here is a screen shot of the vid . Thanks for the link I shop in toolstation a lot.

Ca1pture.JPG
 
All done with my DIY dust cowl and cyclone dust collector with thien baffle, it all worked perfectly and virtually no dust. The in-line collector collected about 12KG of dust - see pictures and in the vacuum there was just about a pint.

P1000902.jpg P1000904.jpg P1000905.jpg P1000906.jpg P1000907.jpg P1000908.jpg P1000912.jpg P1000913.jpg P1000910.jpg P1000911.jpg
 
All done with my DIY dust cowl and cyclone dust collector with thien baffle, it all worked perfectly and virtually no dust. The in-line collector collected about 12KG of dust - see pictures and in the vacuum there was just about a pint.

View attachment 98696 View attachment 98698 View attachment 98699 View attachment 98700 View attachment 98701 View attachment 98702 View attachment 98703 View attachment 98704 View attachment 98705 View attachment 98706
Oh I've got to make one of these!
 
The problem is that the black hose attachment has come off from the shroud, this bit -
p1000902-jpg.98696

I used gluesticks but they did last the job out I need a better glue.
Also the baffle is meant to stop dust going up the exit hose to the vacuum but it may of worked but also acted as a shelf to collect dust, I think I will make the curved holes in it bigger. The idea is that it is a round disk under the vacuum hose here it is which is the bottom of the top bucket with the curved holes cut out so the dust on the outside vortex drops through to the lower bucket below.
69705-d248d1f6632fcf83cae5296b5d04fcfc.jpg
 

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Concrete grinding options
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