Sigma mixer ,also known as kneader , it is specially designed for mixing, kneading, Grinding, dispersion, drying , mainly used to produce uniform mixing and kneading high viscosity materials , semi-solid, or dough-like materials that require strong shear mixing .
The sigma mixer are commonly applicable to many materials ,including Chemical, Dyes & Pigments, Paint, Polymers Plastic, Putties, Plastic, Pharmaceuticals, Printing ink, stiff pastes, adhesives, polyester Compounds, flush colors, brake lining compounds, resign, soap, PVC coatings, Rubber compounds, Confectionery, Magnetic Tape Coatings, Ceramic, Carbon Black, doughs, Food Products, Fiber Glass, Grease, Lead Storage Battery, Soap & Detergent etc.
When the materials are kneader ,it would be charged through the top of the container for a fill volume of 40 to 65 percent of the total volumetric capacity of the mixer.
The sigma kneader mixer is the best suited mixer machine for pasty, sticky, and gritty slurries with high viscosities. It can be seperately as several kinds mixer as follows:
1. Tilting Type Sigma Kneader
Separation: The mixing chamber can tilt or detach for cleaning and maintenance.
Use Case: Useful for batch processes where full material removal is needed.
2. Vacuum Type with Detachable Chamber
Separation: Some models feature a chamber that can be removed or opened widely.
Use Case: High-cleanliness industries like pharmaceuticals or food.
Separation: Often designed with quick-release or detachable components for easy cleaning and changeover.
Use Case: Small-batch testing or R&D.
4. Extrusion Discharge Type (Split Screw Unit)
Separation: The discharge screw and barrel can be separated from the mixer for maintenance.
Use Case: Rubber or plastic compounding that requires thorough cleaning between batches.
Our sigma kneader mixer are widely used in many industries ,including :
1. Rubber & Plastics
Materials: Rubber compounds, silicone, TPR, PVC plastisols
Purpose: Homogenizing, mastication, and color mixing
2. Adhesives & Sealants
Materials: Epoxy, PU, silicone sealants, hot melt adhesives
Purpose: Blending resins, fillers, and catalysts under controlled temperature or vacuum
3. Battery & Electronic Materials
Materials: Lithium battery slurry, conductive pastes
Purpose: Mixing powders and binders evenly, often under vacuum
4. Chemicals
Materials: Explosives, putty, carbon black masterbatch
Purpose: High-shear mixing of reactive or hazardous materials
5. Food Industry
Materials: Chewing gum, dough, candy bases
Purpose: Mixing sticky or tough food materials consistently
6. Pharmaceuticals & Cosmetics
Materials: Ointments, creams, gels, active compound pastes
Purpose: Homogenization under hygienic conditions, often with heating/cooling
7. Construction Materials
Materials: Ceramic pastes, tile adhesives, epoxy flooring compounds
Purpose: Mixing mineral powders with resins or water
We can design and tailor many kinds of sigma mixer ,ranging from lab capacity 5 litres capacity up to 3000 litres production models. These sigma kneader mixers are suitable capacity motor and gearbox incorporated considering raw material characteristics.
Except these function , additional features such as automatic tilting, screw system, heating arrangement, vacuum system can be offered as per user requirements.
Large industrial sigma kneader mixer are usually fixed due to their size and weight, but custom designs can allow separable troughs, blades, or discharge units if needed.
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