hey beatle - i wouldn't have thought over-working machinery was a good idea -is running the crusher at 150% like red lining the engine in a car??
Hows it going mgm1a, no it is nothing like that it depends on the ore going through the crusher,the crusher and mill have a maximum load factor that they can run to just for arguments sake if the crusher can produce a 1000 horse power that is all it will do,But if the ore is a clay type ore it will be able to crush a lot more, if it was totally A quartz or or green belt or it would only be able to crush to it capacity of 1000Hp.
To put it in an easier term if you drive a car on the bitumen it takes less horse power than if you were driving on sand. So if the ore has less hard rock and more soft clay it will take less HP to crush and the through put can be a lot more.
I hope i haven't confused you
Cheers
Des