How Hard is it to grind a concrete floor?
Our concrete floor grinders have been chosen to make it easy to get a great result for both DIY and Tradies.
One of our people - who had never done any floor grinding before - took one home and came back raving about how easy the grinder was to use and how good the vacuum was for dust removal.
– Diamond Grinder
– Range of diamond for different concrete
– Use to grind and polish concrete
– Includes a shroud to grind up to the wall
– Small or Medium Vacuum for dust removal
Our concrete grinder hire smooths rough and uneven concrete, creates a polished concrete look and preparation of terrazzo floors. We hire a range of diamond heads for aggressive grinding, polishing of old concrete and removing one or two coats of paint.
Choosing the correct Diamond Disk will give you a better job – and reduce the risk or excess diamond use charges.
Excessive wear doesn’t mean a poor quality disk; just the wrong disk for the concrete.
If a disk is wearing too quickly on “old” concrete – the concrete may be “soft” and require a disk for New/Soft concrete.
“Green Concrete” – ie “new concrete” less than 3 months old – will destroy a standard Diamond Disk and incur a fee up to $440.00.
Our grinders are not the right machines. They’re “surface grinders” that will smooth concrete and remove small lips and and high points from concrete – but they aren’t aggressive concrete removal tools.
What grinding jobs aren’t our grinders suitable for?
Exposed aggregate sitting above the concrete?
Sorry – we’re unable to help. Our diamond heads might work – but probably not and you’ll just damage the head and we’ll need to charge for the damaged diamond.
This is most common in warehouses and involves treatment of the concrete with chemicals and heat to make it incredibly hard.
Grinding burnished concrete is best tackled by a contractor – and none of our equipment is capable of grinding this concrete.
Please note excess diamond use charges on product pages.
This is the disk that suits 95% of our customers.
Leaves swirl marks but very effective for:
* removing lips in foot paths
* the first grind to expose aggregate for polished concrete
* other semi-aggressive grinding.
250mm – White 30 grit
Use to smooth out the scratches from heavier grade diamond head.
* Minimal grinding ability – kind of like a very fine sandpaper, it’s only used for smoothing out previous grinds.
250mm – Yellow 150 grit
Use for NEW concrete as standard diamond disks will be destroyed by new concrete.
New concrete can be anything up to 3 months old… (or even older).
250mm – Blue 30 grit
One or two layers of paint.
If you’ve thick layers of multiple coats of paint or thick “rubberised” floor coating we’re unable to help as the job is very specialised.
250mm – White 30 grit
Note: if paint is too thick it can melt and gum up the diamond. If this happens, run the head quickly over some rough concrete or asphalt to re-expose the diamond.
For aggressive grinding and removal of more concrete.
(Note: This disk wears quickly and excess wear charges WILL apply – it’s the nature of the disk.)
250mm – Black 16 grit
Note: if you’re hoping to remove lots of concrete, our grinders are not the right machines. They’re “surface grinders” that will smooth concrete and remove small lips and and high points from concrete – but they aren’t aggressive concrete removal tools.