Lab Sigma Mixer Machine is used for managing very viscous materials, it is essential to support both tangential and oblique motion of the substance. The geometry and profile of the sigma blade are intended such that the glutinous mass of a substance is pulled, sheared, dense, kneaded, and folded by the exploit of the blade next to the walls of the mixer trough. The amount to which this happens depends on the exploit of the blades - peripheral or overlap and the ratio of the speed of replacement of the blades. The twist angle of the blade can be customized depending on the necessary shearing.