PT Kaltim Prima Coal has the Energy Conservation Program that optimizes Match Factor ( MF ) and Fuel Bum Rate ( FBR ) . Middle inul Pit uses shovel excavator Liebherr with R996S type and trucks such as CAT785 , CAT789 , Hitachi EH4500 and Hitachi EH5000 to transport overburden material . Many types and capacities of each trucks causes cycle time of each instrument payload are also varied due to…