Dispersion Kneader

Experience top-tier rubber and plastic processing with Crowns Machinery’s advanced Dispersion Kneader. Precision engineering for superior mixing efficiency

Dispersion Kneader For Sale

Dispersion Kneader is one of the specialised equipment in rubber and plastic processing industry – Kneader. It is mainly used for mixing, kneading and dispersing natural rubber, synthetic rubber, recycled rubber and plastics, foamed plastics, etc., and is adapted to mixing a wide range of low-viscosity materials. The equipment helps to improve material properties, resulting in homogeneous, high-quality mixtures with specific desired properties for the production of polymeric materials such as elastomers and thermoplastics. The equipment plays a vital role in achieving uniform dispersion of fillers, colours and other additives in rubber compounds.

The equipment mainly consists of a pneumatic control system, an electrical control system, a tilting structure, a mixing chamber, a main drive system, a dustproof sealing device, a thermal resistance, a rotor and a cooling/heating system. It has the features of simple operation, easy maintenance and low energy consumption, etc. Customers can choose the suitable product model according to their needs.

Dispersion Kneader--Rubber Kneader Machine


1. type XN-55X30 XN-75X30 XN-110X30
2. pinching total cubage(L) 125 175 250
3. dense smelting total cubage(L) 55 75 110
4. main motor power(kw) 75 110 185
5. overturn motor power(kw) 2.2 3.0 7.5
6. overturn angle(degree) 140  140 140
7. rotate speed of rotor axis(front/rear) 30/24.5 30/24.5 30/24.5
8. pressure of compressing air(MPA) 0.6-0.8 0.6-0.8 0.6-0.8
9. pressure of cooling water(MPA) 0.2-0.4 0.2-0.4 0.2-0.4
10. pressure of vapor(MPA) 0.5-0.8 0.5-0.8 0.5-0.8
11. overall size(L*W*H)mm 3300*1900*2900 3760*2143*3135 4075*2712*3580

Working Principle

Firstly raw materials including rubber compounds, fillers, accelerators, plasticisers, etc. are loaded into the mixing chamber equipped with Sigma rotors or blades for mixing. The rotors or blades move in a controlled speed and direction of rotation to knead and mix the materials together. The heat generated during the kneading process helps to soften the rubber and improve the dispersion of the additives. The temperature, pressure and other parameters of the mixing process can be set and monitored by sensors and control systems. After mixing, the mixture is discharged from the mixing chamber at an inclination of 140 degrees.

Dispersion Kneader--Rubber Kneader Machine

Key advantages and features

Low running cost: the equipment is easy to install, operate and maintain, which can greatly reduce the running cost.

High efficiency and energy saving: the equipment is completely sealed, the material can be mixed or plasticised under stable pressure, high production efficiency, energy saving and environmental protection, stable quality.

Uniformity of dispersion: The helix angle and lap length of the rotor blades are reasonably designed to ensure uniformity of material dispersion.

Wear-resistant and corrosion-resistant: the surfaces in contact with the machine are hard-chromium plated and polished, with higher corrosion resistance.

Good cooling and heating effect: the parts of the machine surface in contact with the material adopt jacket structure, which can achieve better water cooling or steam heating effect.

Convenient continuous operation of the production line: the production material enters through the rear door of the equipment and is discharged from the mixing chamber tilted 140 degrees forward, which greatly facilitates the continuity of the process operation on the production line.

Dispersion Kneader--Rubber Kneader Machine

Fields of application

The equipment is widely used in sealing fittings manufacturing industry, rubber and plastic products industry, can also be used in coatings, dyes, ceramics, pharmaceuticals, tape, film production line and other industries of the co-mixing, is the rubber and plastic industry, the best new co-mixing equipment, high performance, advanced level. Specific as follows:

Tyre manufacturing: all kinds of rubber tyres for cars, trucks and so on.
Rubber products: such as rubber belts, rubber gaskets, rubber tubes, etc.
Wire and cable manufacturing: such as rubber, plastic, wire harness, etc.
Seal manufacturing: such as oil seals, body seals, gaskets, belts, hoses, tubes and other auto parts.
Rubber shoe manufacturing: such as various sports shoe soles.
Belt manufacturing: such as power transmission belt, conveyor belt.
Medical supplies: such as pharmaceuticals, medical plugs, hats, gloves, etc.
Sporting goods: such as golf ball rubber parts, basketball, volleyball, etc.
Food manufacturing: such as chewing gum, bubble gum, toothpaste, etc.

Dispersion Kneader--Rubber Kneader Machine

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