In a day, at least three times faster than kneeling to grind.

Our first Situp N Grind prototype removed yellow safety lines from a floor six times quicker than the estimated time in the quotation.

It was embarrassing, but we had no idea it would make that much difference.

The reasons for this unbelievable increase in grinding speed are explained in the link Power Into Speed.

So just how fast is it normally?

Well, that depends...

How hard or soft is the concrete, how thick is the coating, what diamond disc do you have fitted, how much do you need to take off?

The best you can do is around 300-400 sq.ft./hr (30-40 sq.m/hr) if you are experienced and if you are grinding normal strength concrete that only needs the surface cleaned up.

That is very impressive and only expected from machines that cost three times the price and use a lot more power.

Surface Preparation

Normal surface preparation of concrete will be around 200 to 250 sq.ft/hr (20-30 sq.m/hr).

Epoxy and Other Paint

Removing thin epoxy will be a little slower than the above - around 150 to 250 sq.ft/hr. (15-25 sq.m/hr)

Removing thick paving paint or acrylic coating (not epoxy) will take much longer. Speeds reduce to around 70 to 100 sq.ft/hr (7-10 sq.m/hr) because it tends to melt and becomes sticky.

Glue removal is similar to paving paint.

To go to "How To Remove Coatings" click here

Exposed Aggregate

Exposing the aggregate requires deeper grinding which can vary between 30 and 60 sq.ft/hr (3-6sq.m/hr) if you choose the right diamond disc.

To skip the next page "Avoiding Grinder Burnout"

(if you have already visited)

and go to the following page "Segments - hard or soft" click here

To go back to "Power Into Speed" click here