Renders India is distinctly ahead from contemporary competition in manufacturing of high quality Sigma Kneaders. Our mixing solutions has garnered immense admiration and created a unique niche for itself giving our customers values more than what they pay. Our flawless designed and manufactured advanced featured Sigma Kneaders are employed in numerous applications in various industries across the globe. Apart from India, our Sigma Kneaders are in high demand in countries spanning Middle East, Africa, South East, Bangladesh, Myanmar and Sri Lanka.A typical sigma kneader consists of a sigma bowl or trough, sigma blades, base frame, motors, gearboxes, electrical controls and other related accessories. Sigma Kneaders are outstanding machines aimed at precision kneading and blending of highly viscous materials like dough, putty, rubber solutions, adhesives, polymers, cream, batter, paste, sludge, slurries and granules etc. The blending action is a combination of smearing, stretching, folding, dividing and recombining as the material is processed between the sigma blades and the walls of the Sigma Bowl.These machines are otherwise known in different names like Sigma Kneaders, Sigma Mixers, Putty Mixer, Sigma Kneader Extruder, Mixtruders, and Mixer Kneader etc.
User comments



  • Available in wide range of vessel capacities ranging 50 litres to 5000 litres to suit the process and your requirement.
  • Available in two variants:
    • Double Sigma Arms Mixer
    • Single Sigma Arms Mixer
  • SmartMix machines are manufactured with variety of materials of construction that may include Mild Steel (MS), Stainless Steel (SS) of all grades and several other materials to suit your process requirements.
  • All our SmartMix models are safe, as we offer every product in certified explosion proof options.

More Features

  • Finished material or final product discharged by following ways:
    • Extrusion: Provision of extruder or extrusion screw is equipped to enhance mixing and kneading and as well extraction from the bottom of the trough.
    • Tilting: The trough is tilted to approximately 90⁰ to 120⁰ for direct unloading of the material.
    • Valves: Using of proper valves is simple and cost effective way for discharging of finished materials with less to medium viscosity.
    • Combination of Extrusion and Tilting: Our SmartMix Sigma Mixers may consist both the mechanism of extrusion and tilting, giving a smarter choice of material extraction to our customers.
  • Our precisely calculated torque, revolutions of sigma blades, gear ratios, shape and dimensions of sigma blades, trough, base frame etc. and bearings, sealing system, couplings etc. make our SmartMix Sigma Mixers give unmatched quality and superior performance.
  • Our SmartMix Sigma Mixers are configured and manufactured of high grade components like motors, gearboxes, belts, bearings, seals improve the quality of the machine.
  • A wide range of Sigma blades option is available to choose from to suit your application and process best. Some of blade types are Z-shaped blades, Double Wing blade, Spiral blades, Naben type, Double Naben type etc


  • Counter rotating sigma blades or Z-blades are designed and manufactured by applying thorough systematic engineering and machining process. The blades go through all requisite rigorous tests to make them perform marvelously. Wide range of material construction is available including Mild Steel (MS), Stainless Steel (SS) and other materials. Special care of selection is opted for food and pharmaceutical industries.
  • The construction material of U shaped or W- shaped trough or the bowl can be configured to suit your requirement. The sturdy, stable and vibration-free base frame mostly made by mild steel (MS of all grades) gives mounting support to the entire machinery to withstand heavy static and dynamic loads.

More Features

  • The option of Insulation or Jacket is available for cooling or heating by steam, oil, water. Electric heaters can also be incorporated.
  • The SmartMix Sigma Kneaders may possess smart features that include speed controller, temperature and pressure monitoring devices, programmable logic controller (PLC) ,HMI control panel, touch panels, limit switches, sensors, auto-valves and several other highly advanced features to make your entire set of machinery and process ‘smarter’.
  • SmartMix Sigma Kneaders are painted and coated superiorly for great aesthetic looks and long life span. A supreme finishing touch of the wetted parts i.e. buffing, polishing etc give the machines unmatched look and performance.
  • SmartMix Sigma Kneader is excellent for mixing both wet and dry ingredients that is recommended for mixing heavy, resistant items such as fertilizer, plaster, chemicals, minerals, detergents, sweeping compounds, dry wall products and caulking, as well as coffee, tea, and soil mixes; oil bound distemper, putty and other heavy chemicals etc. These machines are also extensively employed in the feed manufacturing industry mixing feeding rations for poultry, cattle, dairy, horses and sheep with and without liquid molasses and fat.
  • Vacuumable design for dust free operation is an added advantage.
  • Automatic spraying system during operation as per process requirement and cleaning after batch can be equipped.



  • Renders manufactured equipment is of compact design and of high durability that maximizes process yield per performance volume and minimizes space requirement.
  • Our machines are safe, easy and convenient in operation without any hassles. Minimum human effort and human power is required for operation.
  • Provision of extruder results in low mixing time and elimination of manual task of scrapping out sticky materials. It also eliminates operator exposure to hazardous or heated materials enhancing safety of operator and operation.
  • Maintenance and trouble free Renders SmartMix Advanced Featured (AF) Sigma Kneaders possess all advanced features that you wish to possess. You may opt to add on speed control, pressure monitoring and control, temperature monitoring and control, HMI Control panels, process automation by limit switches, auto control valves, load cells, ultra sonic sensors etc.
  • SmartMix Sigma Mixers are designed and manufactured with latest industry standards complying with international engineering standards.
  • Our aim of ‘guaranteed satisfaction’ is achieved by fully customized design for small batch to large batch capacities for various viscosity range and customization of other components including material of construction, sigma blades and other features according to the customers’ need.
  • Easy available of spare parts or wear and tear parts
  • SmartMix Industrial Mixers are cost-effective, and budget oriented.
  • Short manufacturing and delivery time.


Our proven, accomplished, efficient and versatile industrial mixers are used in numerous processes in several industries. Some of them are:

  • Confectioneries and chewing gums
  • Food processing
  • Baking
  • Pharmaceuticals
  • Resins
  • Polymers
  • Adhesives
  • Cements
  • Pulp & Paper
  • Petrochemical
  • Herbal
  • Rubber
  • Textiles
  • Plastics
  • Polyester
  • Plasters
  • Polyurethanes
  • Wax
  • Soap and shampoo
  • Metals
  • Ceramics
  • Sealants
  • Construction chemicals
  • Chemicals
  • Paints
  • Inks
  • Coatings
  • Pigments
  • Colorants
  • Cosmetics
  • Dairies
  • Beverages
  • Breweries
  • Grease

Also available in economy models (EC series).