1000L Sigma Mixer

1000L-BMC-Mixer-Sigma-Mixer-DMC-Mixer 1000L sigma mixer machine has a double 'U' shaped container welded together inside which rotates 2 (two) 'Z' type sigma blades in opposite directions of each other sigma mixer blade. The clearances between the walls and the container are kept to a minimum for optimum efficiency in kneading and mixing. The shafts of the sigma blades are fitted in bearing blocks which are each provided with roller bearings, steel glands/teflon rubber seals for smooth and leakless operations. The kneader is mounted on a sturdy base frame fabricated out of ISMC sections and are free from vibrations. For cooling and heating jackets are provided. the machine also called Z BLADE MIXER

sigma mixer Sigma Kneader are used in a number of food and commercial adhesive applications. Ingredients are blended until the consistency is correct. The ingredient is then tipped out of the mixer and forwarded to the next step in the process.
These types of machines are available in M.S. And S.S. construction. The kneader can be tilted by means of a mechanical system or manually and for bigger models beyond 250 Kgs we provided hydraulic tilting.

Hydraulic tilting system is provided with complete power pack, electric motor, pressure valves, pipes, fittings, cylinders and hoses which makes the tilting mechanism quick, easy and simple to operate.

sigma mixer working principle

A Sigma mixer operates by using two horizontally arranged, sigma-shaped ( or Z-shaped) blades contra-rotating towards each other at different speeds within a W-shaped trough. It mixes high-viscosity materials through a combined action of shearing, folding, stretching, and kneading, ensuring thorough homogenization within 10-30 minutes.

Key Working Principles:

Contra-Rotation & Shearing: The blades rotate in opposite directions (inward), often at a 1:2 speed ratio, creating high shear and friction.
Kneading & Folding: The unique Z-shape continuously pulls, squeezes, and folds the viscous material against the trough walls and the center saddle.
Tangential or Overlapping Action: Blades can be arranged tangentially (for extremely high viscosity, like rubber) or with slight overlap (for medium viscosity).>
Low Clearance: The small clearance (~2 mm) between the blades and the vessel walls ensures minimal "dead spots," leading to superior blending of thick pastes and doughs.
Temperature Control: The trough is often jacketed to allow for heating or cooling during the mixing of materials like plastics, adhesives, or food products.

Common Applications:

Food: Chewing gum, dough, confectioneries.
Pharmaceutical: Wet granulation (tablets, pills).
Industrial: Rubber, adhesives, sealant, pigments, soap, and battery paste.

The mixer discharges the final product by tilting the vessel or using an extrusion screw.

Applications:

Double Arm Sigma Blade Mixers are suitable for many applications, including: Sealing compounds, asphaltic derivatives, mastics, hot-melts, floor coverings, colorings, rubber base, master-batches, chewing gum, rubber compounds, silicone, lubricating greases, dispersed pigments, butyl, gums and adhesives, ceramic paste, polyester compounds, greasy inks, pencil leads, explosives, powders to granulate, PVC coatings, resins, soap, brake linings, carbon electrodes, celluloid, Bakelite, battery paste, polishing pastes, …

Technical Parameters

Type		SM- 5	SM-10	SM-100	SM-300	SM-500	SM-1000	SM-1500	SM-2000	SM-3000	SM-4000	SM-5000
Volume (L)		5	10	100	300	500	1000	1500	2000	3000	4000	5000
Rotation Speed (rpm)		33 23	33 23	35 22	37 21	37 21	35 25	30 16	30 16	38 27	38 27	38 27
Main Motor Power (Kw)		0.75	1.1	3-7.5	11-30	15-37	22-90	22-90	30-110	30-110	45-110	55-132
Heating Methods	Steam Pressure (MPa)	0.3
Heating Methods	Electric Power (Kw)	1	1	4	9	16.2	27	32.4	40	72	72	96
Vacuum (MPa)		-0.094 (Vacuum Kneader)
Pressure (MPa)		0.45 (Pressure Kneader)				0.35 (Pressure Kneader)				0.3 (Pressure Kneader)
Weight (Kg)		300	400	1250	1600	3000	4500	5800	6500	11000	13000	21000

Application Range

Widely used in mixing and kneading of low-to-high viscosity products in many industries such as BMC/DMC, chewing gum, candy/sugar paste, plastic/silly putty, hot melt adhesive, silicon compound, CMC/Cellulose, Electrode paste, carbon, pencil leads, soap, pigments, inks, plastic etc.

LABORATORY DOUBLE ARM SIGMA BLADE MIXERS

Laboratory Mixers are available in sizes ranging from 3 Liters to 10 liter working capacity. Variable speed drive on the blades standard. Stainless steel construction standard, jacketed is standard.

Sigma Mixer or Sigma Kneader is generally used for heavy duty mixing, kneading, dough knaeding, uses in the Paint, Pigment, food, adhesives, chemical, pharmaceutical, dyestuff industries.

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