Sigma Mixer Sigma Mixers (Kneader) is modern heavy duty mixer specially designed to produce uniform mixing and kneading heavier viscosity materials. It is suitable for many applications such as different kinds of doughs, stiff pastes, adhesives, polyester compounds, flush colours, brake lining compounds, resigns, soap, PVC coatings, rubber compounds, food dough, etc. We use technology that not only makes the mixing process more consistent, but also minimizes downtime through maintenance-free and enhanced sanitation designs. Our Sigma Mixer advantage is that it delivers the special features and benefits that guarantee maximum production efficiencies, improved product and uniform processing, even with the stiffest of doughs.