Mixer with double arm sigma kneading blades offering intensive kneading of high viscosity masses. With this mixer shorter processing times can be achieved without compromising quality. All these machines in the Super Strong Series have a double-jacketed bowl for heating and cooling. This mixing bowl can be hydraulically tilted up and forward. The discharge can be done by tilting of the bowl or by means of an extruding screw. Front and rear bowl seals prevent leaking and helps to maintain product quality. Seals made of high quality material.