Sigma Mixer machine
Sigma Blade Mixer
The sigma blade mixer is one of the most popular mixers used for mixing and kneading high viscosity materials. It belongs to the family of double arm kneader mixers. It is a commonly used mixer for mixing high viscosity materials.
Principle of Sigma Blade Mixer
The principle involved in these mixers, wherein very viscous materials are handled, is shearing which is produced by inter-meshing sigma-shaped blades. This action promotes both lateral and transverse motion of the material. The geometry and profile of the sigma blade are designed such that the viscous mass of material is pulled, sheared, compressed, kneaded, and folded by the action of the blades against the walls of the mixer trough. The extent to which this happens depends on the action of the blades either tangential or overlapping and the speed of rotation of the blades. The helix angle of the blade can be modified depending on the required shearing.
All double arm kneader mixers are equipped with two mixing blades placed in a W-shaped horizontal trough. Various blade profiles have evolved, each of which is best suited for a particular type of application. The commonly used blade types are the sigma blade, masticator blade, shredder blade, naben (aka fishtail) blade, and spiral blade. The rotation of the blades is either tangential to each other or the blades may overlap within the trough.
The blades rotate toward each other at the same or differential speeds. The blades pass the container walls and each other at close clearances (2-3 mm) resulting in homogenous mixing. The close clearances produce very high shearing action thereby reducing any large particles.
Description of Sigma Mixer
These mixers produce a consistent particle size distribution without the need for additional high speed choppers. Homogenous mixing is achieved within 10 to 30 minutes. Mixing homogeneity upto 99% and better can be achieved using the double arm kneader mixers. These mixers and their variants (double arm kneader mixer extruders) are capable of handling material with viscosities as high as 10 million centipoises. The power consumption in double arm kneader mixer is very high compared to other types of mixers and can range from 45 to 75 kW/m3 of mix material. The sigma blade mixer is the most commonly used type of double arm kneader mixer, and is best suited for all round use.
Reaction vessels are at the heart of a chemical plant. They are where the chemical Changes and reactions take place. Powders or liquids may be poured into reaction vessels using large funnels, called hoppers, connected to the top of the vessel.These stainless steel liquid mixing tanks are highly efficient to use with its robust mixing structure for homogeneous mixing of different chemicals and ingredients.
Abster Equipment is an extremely efficient Reactor Vessel Manufacturer and Supplier company from Ahmedabad, Gujarat, India.
Use of Sigma Mixer :-
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Stainless Steel Reactor Tank Selection Guide
Determine Capacity: Select the appropriate tank capacity based on specific production needs.
Choose Material: Select 304 or 316L stainless steel based on the properties of the materials being processed.
Design Pressure: Specify the working pressure requirements if pressure resistance is needed.
Heating and Cooling Requirements: Choose the appropriate heating or cooling method (steam, electric, thermal oil, or cooling jackets) based on the process requirements.
Agitator Type: Select the suitable agitator type (anchor, paddle, propeller, or turbine) based on the viscosity and nature of the materials being mixed.
Special Requirements: If additional features like insulation, specific control systems, or extra accessories are needed, specify these in advance.
Accessory Selection: Choose necessary accessories such as thermometers, pressure gauges, and CIP systems based on specific usage requirements.
Technical Specification Heavy duty sigma mixer
| Models | Working Capacity | Gross Capacity | Main Motor | Extruder Motor |
| SME – 50 | 50 Liters | 80 Liters | 7.5 H.P. | 1.5 H.P. |
| SME – 75 | 75 Liters | 110 Liters | 10 H.P. | 2 H.P. |
| SME – 100 | 100 Liters | 150 Liters | 15 H.P. | 2 H.P. |
| SME – 150 | 150 Liters | 200 Liters | 20 H.P. | 3 H.P. |
| SME – 200 | 200 Liters | 300 Liters | 25 H.P. | 3 H.P. |
| SME – 400 | 400 Liters | 550 Liters | 40 H.P. | 5 H.P. |
| SME – 500 | 500 Liters | 750 Liters | 50 H.P. | 5 H.P. |
| SME – 750 | 750 Liters | 1150 Liters | 60 H.P. | 5 H.P. |
| SME – 1000 | 1000 Liters | 1500 Liters | 70 H.P. | 7.5 H.P. |
| SME – 1500 | 1500 Liters | 2100 Liters | 80 H.P. | 7.5 H.P. |
| SME – 2000 | 2000 Liters | 2600 Liters | 90 H.P. | 10 H.P. |
| SME – 3000 | 3000 Liters | 3800 Liters | 120 H.P. | 10 H.P. |
* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.
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Application Industry
- Pharmaceutical industry
- Chemical industry
- Food and beverages industry
- Petro-chemical industry
- Resins industry
- Polymers industry
- Coatings industry
- Adhesives industry
- Agricultural industry
- General chemicals industry
- Plastics industry
- Rubber industry
- Herbal Extractor
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