PerMix Sigma Mixers/Extruders Lead The Industry In Innovation & Performance The PerMix PSG series Sigma Mixer, which is also known as the Double ‘Z’ Arm Kneader, is used for the mixing-kneading of materials with very high viscosity (over 500,000 cps). With its unique design of Z-shaped mixing tools installed in two semi-cylinders, the PerMix PSG […]