Description
Sigmal kneader mixer is an ideal equipment for kneading, mixing, curing and polymerization of high viscosity and elastic-plastic materialsalso ,it is also named as blander mixer ,because of its design are similar to the Greek letter sigma (Σ) ,it has two horizontally fitted mixing blades in each trough of the U trough bowl.
When working ,these two ‘Z’ shape blades rotate in opposite direction for proper mixing of material,so that high shear and knead sticky products and highly viscous masses.
This kneader mixer machine is a kind of machinery equipment with pulverize,stir and dry function,it used for mixing and kneading sticky products and high & medium-viscosity materials as adhesives, agglutinates magnetic materials and chemical material mixing.
In the Sigma Blade Mixer machine, the two blades are designed to move at different speeds in oppoite direction, with one blade typically rotating at about twice the speed of the other. By different direction and at different speed ,it would help the material powders when working ,it can move from the sides toward the center of the bowl. The Sigma blade mixer ensures minimal dead spots during mixing operations, resulting in the production of high-quality materials
Such sigmal kneader mixer is specially used to knead or mix ,pulveriz high viscosity materials,it is suitable for many applications like mixing, kneading, Grinding, dispersion, drying etc, it is widely uses for mixing polyester putty,silicone rubber, rubber solution, biscuit dough, sauce,cellulose and battery，ink，pigment,Paint, Polymers Plastic, Putties,dyestuff, polymers etc.
Working Principle of Sigma Mixer
The working principle of sigmal mixer machine is same with the rubber mixing machine ,it is highly popular mixing equipment used for efficiently mixing and kneading high viscosity materials with utmost ease by ‘Z’ type (SIGMA) shaped kneading blades.
In the sealed mixing chamber, under the pressure of upper ram, the two blade rotates very accurately at different speed towards each other. These high-viscosity materials would be plasticized or mixed into the new required material by shearing, squeezing, stirring, rolling and other kneading.
Design of Sigma Mixer
The Sigma Mixers can be tailored manfaucture and supplied in a variety of design and capacity ,ranging from 200Litre to 3000 litre according to your different application requirements. Here are some mail features are below:
*Blade Material: Material option of AISI 1030, AISI CF8 & AISI CF8M
*U Trough: Construction gauge offered from 5 mm thick up to 35mm thick in iron or stainless steel can be 201 ,304 or 316 options.
*Motor horsepower: Motor horsepower ranging from 1.5 H.P. up to 250 H.P power.
*Power Voltage: 308V,440V ,or any other standard voltage requirements.
*Rotation speed: Fix and variable speed RPM offered with option of variable frequency drive.
*Feeding: Feeded by manual or vacuum/screw type automatic feeding can be offered.
*Discharge: Manual, chain type and hydraulic type automatic tilting , or screw type side discharge system
*Heating: Steam heating, electrical heating available
*Cooling: Jacket offered for cool water circulation.
Technical Specification of Sigma Mixer
| Model | Capacity – Liters | Motor (H.P.) | ||
| Working Capacity approx. | Gross Capacity approx. | General | Heavy Duty | |
| SMP – 50 | 50 Liters | 80 Liters | 5 H.P. | 7.5 H.P. |
| SMP – 75 | 75 Liters | 110 Liters | 7.5 H.P. | 10 H.P. |
| SMP – 100 | 100 Liters | 150 Liters | 10 H.P. | 15 H.P. |
| SMP – 150 | 150 Liters | 200 Liters | 15 H.P. | 20 H.P. |
| SMP– 200 | 200 Liters | 300 Liters | 20 H.P. | 25 H.P. |
| SMP – 400 | 400 Liters | 550 Liters | 30 H.P. | 40 H.P. |
| SMP – 500 | 500 Liters | 750 Liters | 40 H.P. | 50 H.P. |
| SMP – 750 | 750 Liters | 1150 Liters | 50 H.P. | 60 H.P. |
| SMP – 1000 | 1000 Liters | 1500 Liters | 60 H.P. | 70 H.P. |
| SMP – 1500 | 1500 Liters | 2100 Liters | 75 H.P. | 80 H.P. |
| SMP – 2000 | 2000 Liters | 2600 Liters | 80 H.P. | 90 H.P. |
| SMP – 3000 | 3000 Liters | 3800 Liters | 100 H.P. | 120 H.P. |
Operation of Sigma Blade Mixer
Firstly, the material to be mixed is fed through the top of the kneader mixer’s container , about 40 to 65 percent of the mixer’s total volumetric capacity. The inner blades are rotating through heavy duty drive systems,which mainly consist of a motor, gearbox, couplings, and gears. The speed of rotating blade can reach up to 60 metres per minute. Basically , the mixing homogeneity upto 99% within 10 to 30 minutes.
The mixer troughs can be provided with jackets for circulation of hot or cold media to maintain the required temperature conditions within the k eader mixer machine. The discharge of the material from the kneader mixer container is either by tilting of the mixer container, bottom discharge valve or through an extruder / screw located in the lower portion between the two trough compartments. The tilting arrangement of the container may be designed for manual operation or may be mechanized using motorized or hydraulic arrangement.
Application of Sigma Mixer
The sigma mixer is widely used for mixing and kneading of low-to-high viscosity products in many industries such as ceramics, silicone rubber, sealants, clay, pasty, sticky, and gritty slurries with high viscosities ,they are also very ideal for many other industries as follows:
Chewing gum
Adhesives
Biscuit dough
Butyl rubber
Carbon pastes
Ceramics
Chemicals
Rubber
Plastic
Polymer
Chewing gum
Cosmetics
Crayon and pencil lead
Bakery food
Pharmaceuticals
Inks
Pigments
Chocolate and other food products
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