Sigma Blade Mixers

Source: Jaygo, Incorporated
Sigma Blade Mixers Sigma Blade Mixers are engineered specifically for kneading, mixing, and homogenizing wet, pasty, and highly viscous products. The two Sigma shaped blades, which sit horizontally and parallel at the bottom of the mixing trough, provide thorough mixing. The blades rotate at different speeds in opposite directions causing the product to be transferred from blade to blade and from end to end, resulting in a figure eight pattern.

Discharge of the product can be accomplished by several methods. The mixing trough can be tilted up and forward through the use of a hydraulic system. Valves can be located in the bottom of the unit, allowing the product to discharge through plug, ball, or "bomb bay" type valves. A third method, which has several advantages, is the use of an extrusion screw to pass the product directly to the next phase of processing.


  • Mechanical or hydraulic drive system
  • Jacketed mixing troughs or heating and cooling
  • Designed for pressure, vacuum, or inert gas operation
  • Remote operator control
  • Specialized die heads / special extrusion spouts
  • Automated operation of cover via hydraulic piston
  • Cored blades of various design


Sigma Blade Mixers are suitable for many applications, including:

Sealing compounds, asphaltic derivatives, mastics, hot-melts, floor coverings, colorings, rubber base, master-batches, chewing gum, rubber compounds, silicone, lubricating greases, dispersed pigments, butyl, gums and adhesives, ceramic paste, polyester compounds, greasy inks, pencil leads, explosives, powders to granulate, PVC coatings, resins, soap, brake linings, carbon electrodes, celluloid, Bakelite, battery paste, polishing pastes, ...