2019-10-4 · Cones can vary from 60 percent to over 80 percent efficiency. Crusher efficiency has a huge influence on productivity. As an example, let''s compare two cones with 300 tph capacity, one at 60 percent efficient and the other at 80 percent efficient. 1) 300 tph x .6, (60%eff.) = 180 tph of finished product with the cone at full capacity