Welcome farmI A 40 inch cone will take about a 5 inch rock on the top side with new liners. As the liners wear and you adjust, the size of the rock that you can feed into it will drop in relation to how much your setting the cone down. I just can't see a 40 inch cone taking 14inch rock. But then again I haven't seen everything.....yet..lol. If your crushing pure rock down to 3/4 inch your gonna have to work hard to get 150tph. But when crushing down to 3/4 a cone is way better than a jaw. Being from Sask. you rock would be a very hard rock.
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