Application Guide for Kneader Mixer in Silicone Rubber Industry

Kneader Mixer

Kneader mixers are widely used in the silicone rubber industry for their unique mixing capabilities, which allow for uniform dispersion of materials and high homogeneity. The kneading action of the mixer provides excellent mixing and dispersion of high-viscosity materials, resulting in high-quality products. 

Details of Kneader

  • The machine comprises a motor, cover press, main body, mixing chamber and rotor mechanism, gearbox, air control system, tilting machine, heating/cooling system, rubber belt transmission and base, etc.
  • The kneader can be made into vacuum, pressure, atmospheric, Normal temperature, high temperature, low temperature, etc. 
  • The temperature adjustment method of a kneader can be the jacket, halfpipe, far-infrared tile, steam, hot water, heat transfer oil, electric heating, cooling water, chilled water, and other methods. 

Application: Paint, Adhesive, Battery, Pharmaceutical industry, Cosmetic

Mixing and Compounding

One of the primary applications of kneader mixers in the silicone rubber industry is mixing and compounding. These mixers are used to process large amounts of silicone rubber, fillers, and other additives, resulting in a homogeneous mixture. The kneading action of the mixer provides excellent dispersion of fillers and additives, leading to a product with improved physical properties.

The silicone rubber industry uses kneader mixers for a variety of applications, including manufacturing of seals, gaskets, and o-rings. The mixer is used to uniformly mix silicone rubber with fillers like carbon black, silica, and other reinforcing agents to improve tensile strength, modulus, and tear resistance. Additionally, the mixer helps in the processing of materials with different hardness and viscosity, producing high-quality silicone rubber products.



Devolatilization is another significant application of kneader mixers in the silicone rubber industry. During the production process, volatile components like solvents, moisture, and other impurities can become trapped in the rubber, leading to defects in the final product. Devolatilization is the process of removing these volatile components from the rubber.

Kneader mixers are ideal for devolatilization because they provide excellent dispersion and mixing of materials. This allows for efficient removal of the volatile components, resulting in a product with improved physical properties. The kneading action of the mixer helps to release trapped gases and volatile components, leading to a product that is free from defects.


High-Filled Compounds

Kneader mixers are also used to manufacture high-filled silicone rubber compounds. These are compounds composed of a high percentage of fillers and reinforcing agents, leading to improved physical properties. The process involves mixing silicone rubber with a large amount of filler material, which requires a high mixing capacity.

The kneading action of the mixer allows for the efficient and uniform dispersion of fillers, resulting in a compounded mixture with high homogeneity. This leads to the production of high-quality silicone rubber compounds with improved modulus, tensile strength, and other properties.

lab kneader

Pigment and Color Dispersion

The silicone rubber industry also uses kneader mixers for pigment and color dispersion. Pigments are added to silicone rubber to give it color and improve its appearance. The dispersion of pigments in silicone rubber can be challenging due to the high viscosity of the material.

Kneader mixers are ideal for pigment dispersion due to their high mixing capacity and efficient mixing action. The mixer provides excellent dispersion of pigments and other color additives, leading to a uniform color throughout the rubber product.


Kneader mixers are vital pieces of equipment in the silicone rubber industry. They are used for mixing and compounding, devolatilization, production of high-filled compounds, and pigment and color dispersion. The unique capabilities of the kneader mixer allow for the efficient and uniform dispersion of materials, leading to high-quality silicone rubber products.

As a professional kneader manufacturer, FRANLI has provided a complete set of mature equipment for related machines and production lines for more than 60 countries and thousands of industries in the world, and in Russia, Turkey, Spain, Brazil, Malaysia, Indonesia, and other regions, it has provided many An enterprise establishes related production lines.

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Guidelines For Kneader

The dispersion kneader is suited for rubber and plastic mastication, as well as the blending of different rubber and plastic components. Small and medium-sized rubber and plastics manufacturers with a wide range of product types and colours, as well as food, dyes, pharmaceuticals, and ceramics, can benefit from the internal mixer. 

sigma mixer machine
Guidelines For Kneader

Sigma Mixer: Indispensable Equipment For Manufacturing

Sigma Mixer is a type of mixer that uses a unique mixing principle to achieve an efficient blending of materials. The mixer consists of two blades that rotate in opposite directions, creating a kneading and folding action that ensures thorough mixing. The blades are shaped like the Greek letter Sigma, hence the name Sigma Mixer.

sigma mixer machine
Guidelines For Kneader

Sigma Blade Mixer: The Mixing Solution

The Sigma Blade Mixer is a robust and reliable mixing machine that uses a unique mixing principle to achieve superior results. It is a type of double-arm kneading mixer that features two blades that rotate in opposite directions.

mixer kneader
Guidelines For Kneader

Vacuum Kneader: A Machine for Your Mixing Needs

The Vacuum Kneader is a type of mixer that utilizes a vacuum chamber to create a homogeneous mix of ingredients. It is designed to knead, mix, and disperse high-viscosity materials under vacuum conditions, resulting in a superior product.

mixer kneader
Guidelines For Kneader

Efficiency and Effectiveness of Dispersion Kneader

The dispersion kneader has complete control over the mixing and blending of the raw materials to create an even mix that allows for better distribution. This device contains a mixing chamber with rotating blades made of high-quality steel.

mixer kneader
Guidelines For Kneader

Vacuum kneader: high efficiency and environmental protection

A vacuum kneader is mainly used for stirring, mixing, and kneading high-viscosity and elastic-plastic materials. The most common fields include high-viscosity sealant, silicone rubber, neutral acid glass glue, chewing gum, bubble gum, aluminum silver paste, silica gel, paper pulp, cellulose, and other materials. It covers food, agrochemical, pharmaceutical, cosmetics, electronic paste, and other industries, and has been sought after by the industry.

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