Tangential or overlapping Sigma mixers have been specially designed for mixing high viscosity materials. The exclusive profile of their arms ensures perfect dispersion of the products in a shorter period of time, ensuring greater productivity.
The drive can be exclusive or unique for both arms, making the operation and maintenance simpler, despite the robust design and rare human intervention. In the tangential action system, the arms rotate at different speeds. In the overlapping system, the arms rotate in the same speed. The sealing system can be design according to the specific requirements of each process, from delicate and sanitary criterias to a rougher finishing.
The product discharge can be performed by tilting the tank through hydraulic cylinders; by extruder screw (Mixtruder version); or by manual or automatic valves, mounted on the bottom of the tank. In the Mixtruder version, the screw may have an inverted rotation in order to throw the material against the arms, improving the performance of the mixer during the mixing phase, then serving to discharge the product, which can also be used as an auxiliary element in extrusion.
The equipment can be built with heating/cooling jacket and can also operate under pressure/ vacuum.
Drugs and various high-viscosity chemicals.