Use 55 C (130F) on mixer sides/rotors and 60 C (140F) on discharge door Higher zone temperatures will cause the rubber to breakdown, deform faster and begin to flow earlier in the mix, resulting in reduced power peaks, mix times and overall lower KWH/mixAlso, metal temperatures are kept more uniform while mixing because heat-up and cool-down effect of cooler water temperatures is reduced, resulting in a more uniform mix, batch-to-batch Using a higher temperature on the door top will reduce the number of gate jams caused by rubber stuck to the door top