Kneader Extruder

 Kneader Extruder combines the efficiency of a double arm mixer with the convenience of extrusion screws for improved mixing and discharge of heavy viscous materials.

The Kneader Extruder includes a set of contra-rotating kneading blades and one or more extrusion screws. The blades are mounted on a horizontal axis in a W-shaped trough. Below the blades in a separate cavity are the extrusion screws. During the mixing cycle the blades rotate towards each other while the mixing screws rotate in a reverse direction, constantly feeding new materials into the mixing blades. After the mixing/kneading cycle is complete, the screws are reversed and they extrude and transport the mixed materials out of the mix zone.

Sample Applications Of Sigma Mixer Extruder

AdhesivesBiscuits doughsrubberCarbon pastes



Crayon and pencil lead

Inks and pigment products

ExplosivesFiberglass resin doughsFood and confectionery productsGaskets and gland packings

Grinding wheel preparations




MasticsMetal powderspreparationsPencil erasers




Sealing compoundsSilicone rubberSoaps and detergentsSolid propellants

Sugar pastes

Viscous rubber solutions

Chewing gum

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