The Sigma Mixtruder is also known as Sigma mixer with extruder screw, it is mainly used for the mixing-kneading of materials with very high viscosities. The Sigma Mixtruder machine is able to provide combined functions of compressing, stretching, folding, kneading & mixing, which makes it widely used in the chemical, food, sealing compound and paint industries, among others. This vaccum Z blade sigma kneader mixer consist of mixing chamber, frame support, hydraulic system, electric control system, discharge system and two Z shape blade in the chamber drove by the motor. The signal mixtruder machine is an efficient sigma type mixer with a screw in the bottom for unloading or extruding the mixed material. During the mixing process, the extrusion screw is driven in a reverse motion by a separate motor. This action of the screw pushes the material into the mixing zone and within reach of the blades, thus assuring a thorough blending of all the ingredients, and, at the same time, reducing the mixing time as compared with a standard sigma type mixer. This Sigma blade mixer is widely used on many industries ,Food ,pharmaceutical, slurry ,soap .chewing gum ,bubble gum, CMC cellulose ,toothpaste ,silicone rubber ,hot melt adhesive .sealant .dye ,battery paste ,resin and cosmetics .areas 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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