With its unique design of ∑-shaped mixing tools installed in two semi-cylinders, Sigma Mixer is able to provide a combined functions of compressing, stretching, folding, kneading & mixing, which makes it widely used in the chemical, food, sealing compound and paint industries, among others.
With its unique design of ∑-shaped mixing tools installed in two semi-cylinders, Sigma Mixer is able to provide a combined functions of compressing, stretching, folding, kneading & mixing, which makes it widely used in the chemical, food, sealing compound and paint industries, among others.
In Sigma Mixer, there are two special designed Z-shaped rotating elements installed in a U-shaped chamber, the intersection of which forms a saddle piece and meeting tangentially just above the saddle. They rotate at different speeds (usually in the ratio of 3:2) and in opposite direction.
The mixing action is a combination of bulk movement, smearing, stretching, folding, dividing, and recombining as the material is pulled and squeezed against blades, saddle, and side walls. Continually new layers of material are compressed and folded over one another and are subjected to shearing forces. New surfaces are formed and the components can penetrate.
The blades, which are ground and polished, successively sweep all points of the trough surface during each revolution, at the same time dividing the batch continuously across the saddle piece and thereby rapidly affecting a perfectly homogeneous mix.
The large number of options available for Sigma Mixer enable it to perform particular functions or operate as a general kneader:
1. Quick disassembly & Easy cleaning design
2. Lab-size for R&D applications
3. Special 'Duplex' kneading arms for intensive kneading
4. Variable speed drive
5. Hydraulic powerpack for tiltable trough
6. Vacuum execution
7. Welded jacket to the trough for heating & cooling