p 80 jaw crusher calculations
technical memorandum - SAGMILLING.COMNov 11, 2015 . ticular F80 and P80) is a property of the rock and any difference in specific .. The EF4 formula requires both the rod mill and ball mill work index (rod mill Wi is . from a primary crusher product size, F80, to a ball mill cyclone.p 80 jaw crusher calculations,Bond Tests | Mining | SGSBond F. C., “Crushing & Grinding Calculations”, Reprint from British Chemical . The test determines the Bond Impact Work Index which is used with Bond's Third Theory of . P80 = 25400 x Css x 7Ecc x (0.02Wi + 0.70) / (7Ecc - 2Css).Crushing in Mineral Processing - 911 MetallurgistDec 26, 2015 . Typical hard-rock crushers like jaw, gyratory and cones break rock by . plant needs to have sufficient crushing power to provide a P80 to grinding of .. The Bond' Crushing Work Index is common to calculate the power.