From two wing rotors to six wing rotors, rotor type influences the quality of mix. Two wing rotors are useful for general purpose mixing and final mix, as they have a slow temperature rise and require low energy to run. This rotor type is ideal for most silica recipes rather than rubber mixes. Four wing rotors require more power than two wing rotors, however they improve mixing. They are superior to two wing rotors, as modifications can be done to better disperse agglomerates. These modifications are known as “H Rotors” or “N Rotors”. The six-wing rotor, which uses various tip clearances along the long wings and short wings of the rotor, improves mixing and dispersion further. Advantages to six wing rotors include a faster cycle time, the highest throughput, reduced energy consumption, excellent dispersion, good temperature uniformity, and reduced Mooney viscosity. More recently in 2016, the 5THR Rotor was invented which is also known as a tangential hybrid rotor. These rotors give better mixing properties and greater mixing productivity for high silica compounds, belt/hose compounds, and pigment masterbatches.