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Karvil Machinery Sigma Mixer

Sigma mixer is also known as the z blade mixer or sigma kneader mixer, which is used for kneading, and mixing of high-viscosity materials. Sigma mixer is employed across diverse industries, including chemical, pharmaceuticals and food, due to its ability to effectively mix materials with high viscosities such as silicone rubber, adhesive, graphite and chewing gum. 

It is available in varioussizes, from smaller laboratory scale units to larger industrial ones, and are equipped with features for precise control over speed, temperature, vacuum, and mixing duration.

Karvil Sigma Mixer offers the advantage of a reliable, durable, and efficient mixing solution tailored to meet the specific requirements of various industries, ensuring consistent and high-quality output.

Customization Options


- The material contact part can be SS304, SS316 with mirror polished or carbon steel. 

- Sigma blades speed can be adjustable with inverter control; one is fast and another is slow.

- Discharge method can hydraulic tilting discharging or screw extrusion discharging or both of them.

- Independent Control Panel: Function controlSchneider electronic componentsCircuit breaker protectionVoltage & current showed and etc.

- Vacuum function( optional): it includes vacuum pump, metal hose, buffer tank and vacuum gauge. Vacuum degree can reach-0.096mpa

- Heating function ( optional): Electric heating with far ultrared heaters or with jacket for heating transfer oil; Jacket for steam; Jacket for water circulation.

- Cooling function( optional): Jacket for cooling water circulation or equipped together with a chiller.

- Other customized function can be discussed

Technical Parameters

Total volume(L)100200300500100015002000300040005000
Effective working volume(L)30-7060-14090-210150-350300-700450-1050600-1400900-21001200-28001500-3500
Main motor power(KW)5.5-117.5-18.57.5-3015-3722-9022-9030-11030-11045-11055-132
Heating methodSteam Heating                                                     Jacket for steam
Electric heating power
(Media with heating transfer oil)(KW)
Vacuum function(Mpa)                                                       0- -0.096Mpa
Discharging method                                                      Tilting cylinder
                                                      Screw extrusion

Why Choose Karvil Sigma Mixer

Karvil has a professional technical team and has already sold our equipment to over 40 countries all over the world as well as different industries. Karvil has rich technical experience  in different applications and also good after sale ability to provide efficient, accurate service.

In addition to excellent manufacturing capabilities, Karvil also has personalized customization for different industries, ensuring that our equipment can bring the perfect experience to the customers. At present, Karvil has provided solutions for different application scenarios, including, silicone rubber, carbon products, various adhesives, clays, waterproof materials, pharmaceutical, food, etc. The industry experience accumulated over the years allows our equipment to be perfectly integrated with the industrial manufacturing needs of our customers.

Advantages of Sigma Mixer

1.Efficient Mixing: Sigma mixers are equipped with dual counter-rotating blades (sigma blades), which intermesh closely to provide thorough and efficient mixing of materials.

2.Versatility: Sigma mixers are versatile and can handle a wide range of materials, including high-viscosity pastes, doughs, powders, slurries, and even highly abrasive or sticky materials.

3.High Capacity: Sigma mixers are available in various sizes and capacities, ranging from laboratory-scale models to large-scale industrial mixers capable of handling several tons of material per batch.

4.Process Control: Sigma mixers can be equipped with advanced control systems that allow operators to monitor and adjust mixing parameters such as speed, temperature, and mixing time.

5.Durable Construction: Sigma mixers are typically constructed from high-quality materials such as stainless steel, which ensures durability, corrosion resistance, and long service life.


Chemical Industry: Sigma mixers are used for mixing and kneading various materials such as adhesives, sealants, resins, silicone rubber, polymers, pigments, dyes, and plastics.

Ceramics Industry: At present, precision ceramics are widely used in various fields such as semiconductors, automobiles, information communications, industrial machinery, and medical care.

Adhesive and Sealant Manufacturing: Sigma mixers are used for blending adhesive and sealant formulations, ensuring proper dispersion of solids, liquids, and additives.

Food Industry: They are commonly used in the production of confectionery, chocolates, sauces, and ready-to-eat meals.

Pharmaceutical Industry: In pharmaceutical manufacturing, sigma mixers are used for blending powders, granules, and pastes. 

Karvil Machinery Sigma Mixer Vedios

Sigma Blade Mixer

Sigma Mixer with Extruder

Tilting Z Blade Sigma


Stainless Steel Z Blade


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Karvil has a professional technical team and has already sold our equipment to over 40 countries all over the world as well as different industries.

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