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  Mixers >> Sigma Mixers
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Sigma MixerThe two mixing blades rotate towards each other at differential speeds inside a W-shaped trough. Each blade moves the material in opposite direction thereby providing excellent cross mixing of all raw materials. The blades pass the trough walls and each other at close clearances resulting in good mixing. The close clearance produces a shearing and tearing action that is beneficial to the size reduction of solids. This mixer is most suitable for highly viscous material and dough like masses. Selection of appropriate blade shape and speeds result in excellent mixing. On completion of the mix cycle, the trough of the mixer is tilted and the product is discharged. The mixer is also available with a bottom opening design for discharge.

 

 
Type of Blades
Sigma blades are best suited for all round use. These may be positioned with either tangential or overlapping action. Both actions provide excellent mixing characteristics.
Spiral blades provide excellent mixing for fiber-reinforced products. These do not have the same heavy - duty shearing action like other blades and therefore produce a smooth homogenous mix with no fiber breakdown.
Masticator blades provide excellent mixing and kneading action for highly viscous, tough masses. These are widely used by the rubber industry in Dispersion Kneaders and Intermixes.
Naben blades produce extra shearing action required for certain materials. The blade geometry resists distortion from stresses in the mixing load. These are available in both tangential and overlapping action mixers.
 

Standard Features

  • Available in all grades of Carbon Steel and Stainless Steel.
  • Optional Teflon Coated Internals for Food and Sticky material applications.
  • Optional wear resistant liner plates provided for abrasive products.
  • Jacketed construction available for heating and cooling applications.
  • Different shape blades available to suit specific applications.
  • Can be offered for vacuum application.
  • Available in working capacities of 5 Liters to 2500 Liters. Other sizes manufactured on request.

Customised Features

  • Good Manufacturing Practice (GMP) models.
  • Explosion-proof motors, Variable Speed Drives along with Electrical Control Panel.
  • CE

Applications

  • Ideal for mixing, kneading of highly viscous mass, sticky and dough like products.
  • Mixing of pastes, rubber, and heavy plastic masses.
  • Applications in Food, Rubber, Pharmaceutical and Chemical industries.
  • Dry powder to wet phase mixing.

 

 
Sample Applications Of Sigma Mixers
Adhesives
Biscuit doughs
Butyl rubber
Carbon pastes
Ceramics
Chemicals
Chewing gum
Crayon and pencil lead
Explosives
Fiberglass resin doughs
Food and confectionery products
Gaskets and Gland Packings
Grinding wheel preparations
Hot-Melts
Inks and pigment products
Marzipan
Mastics
Metal powders
Moulding preparations
Pencil erasers
Pharmaceuticals
Plastics
Putties
Refractories
Sealing compounds
Silicone rubber
Soaps and detergents
Solid propellants
Sugar pastes
Viscous rubber solutions