Kneader is an ideal equipment for kneading, mixing, vulcanizing and polymerization of high viscosity and elastic-plastic materials. Kneader can be used to produce silicone rubber, sealant, hot melt adhesive, food glue, pharmaceutical preparations, etc. Kneader is a special mixing equipment, the most commonly used is to use two_blades, parallel tangential differential arrangement, that is, the speed of one impeller is fast, the speed of one impeller is slow, in order to produce shear force, different impeller speeds make the mixing material can be quickly sheared, so that the material can be mixed evenly.

Vacuum Kneader is one of the kneaders, which is mainly used in silicone rubber, glass rubber, butyl rubber, hot melt adhesive and other chemical production fields. Kneading machine usually consists of kneading system, vacuum system, heating system, cooling system and electrical control system.

Kneading machine was developed by Heinz Rees, and this technology has become quite popular in the processing industry since it appeared. In 1966, Heinz once said that "in the process of operation, high-concentration materials are more efficient and economical than low-concentration materials". Heinz believes that the treatment of high-concentration materials means that there are fewer or no solvents, which can maximize the process yield per unit volume. Processing high-concentration materials is a very complex and challenging task. In order to deal with high-concentration materials better, new technologies need to be developed. As a result, he began to develop reliable technology that can handle phase change in high-concentration materials, known as "dry process".

Structural characteristics of kneader

1. Kneading machine generally adopts through chassis, which is easy to install.

2. Use helical gear or hard tooth surface reducer to make the transmission with the main engine smooth, low voice and long service life.

3. The inner wall of mixing paddle and mixing cylinder is made of SUS304 stainless steel or SUS316L stainless steel to ensure the purity of products.

4. Axle seal has advanced structure and good sealing effect. Unique design of the balance structure of the vacuum box to ensure that no black material is grinded out.

5. Integrated electrical control (main engine operation, hydraulic cylinder turning, hydraulic capping and constant temperature control) and temperature control and temperature display, easy to operate and process control.

Working Principle of Kneader

Kneader is a pair of cooperating and rotating blades which produce strong shear effect, so that semi-dry or rubber-like viscous plastic materials react quickly to obtain uniform mixing stirring.

Kneading machine is mainly composed of five parts: mixing part, frame part, hydraulic system, transmission system and electronic control system. Hydraulic system is operated by a hydraulic station to complete the opening and closing function. Hydraulic system is operated by a hydraulic station to complete the functions of cylinder turning and capping. Detailed parameters can be selected and requested by users at will. The operation is convenient and reliable. The transmission system consists of motor, reducer and gear, and matching motor according to the type of kneader.

The driving part of kneader is driven by synchronous speed of motor, through elastic coupling to reducer, fast slurry is driven by output device, so that it can reach the required speed, and also can be adjusted by frequency converter.

The kneader has two_blades. The speed of the two blades is different. Different speed can be set according to different technology. The most common speed is 42/28 rpm.

Kneading machine can be designed as heating and non-heating according to demand. The heat transfer modes usually include electric heating, steam heating, circulating hot oil heating, circulating water cooling, etc.

The discharging methods of kneader include hydraulic cylinder tipping, ball valve discharging, screw extrusion, etc. The cylinder block and the contact part between the slurry blade and the material are made of SUS304 stainless steel to ensure the product quality.