Four Pins Reciprocating Kneader Extruder Machine Self Cleaning GWHS Series

Product Specification

Four Pins Reciprocating Kneader Extruder Machine GWHS Series Self Cleaning Function

The kneader has excellent mixing and dispersion function as well as self-cleaning function for its unique mechanism and working principle. It is widely used for the manufacturing of all kinds of cable compounds, color masterbatch and all kinds of thermal sensitivity materials.

Cenmen kneader units have been widely applied with successfully cases in all fields; suitable for the manufacture of HFFR, semicon shield and XLPE cable compounds; having unique irreplaceable advantages in compounding and pelletizing of PVC compounds, high concentration masterbatch, black masterbatch and thermoset plastic; as Cenmen company put more investment and research on reciprocating kneader, the application filed will also extend continuously.

Characteristics of 4-flights kneader
Based on the matured 3-flights kneader technologies, Cenmen corp. newly introduced the leading 4-flights GWHS series kneaders.
Upgraded the flights to be 4-flights from original 3-flights and re-designed the geometrical configuration of the flights and the pins structure, optimized the relative motion track between the flights and pins, which make the materials effective shearing greatly increased in the original processing conditions unchanged, meanwhile, the friction heat produced by single shearing has decreased significantly.

Optimized design Proper configuration Precision manufacturing          

Brief Introduction

All series of Cenmen reciprocating kneader adopt modular design. its extruding system and power unit are installed on the framework,  and all compounding screws in all series have independent inner temperature control units, realizing accurate temperature control, wider application range; split barrel can be quickly opened along the direction of screw shaft, convenient for screw elements assembly and the cleaning of barrel and screw.                                                                                                                  

                                                                                                                                                         Polymer and additive feed  

                                                                                                                                                         Melt and homogenization

                                                                                                                                                         Side feeding of filler

                                                                                                                                                         Melt and homogenization

                                                                                                                                                         Vaccum degassing

                                                                                                                                                         Pressure building

                                                                                                                                                         Filtration

                                                                                                                                                         Pelletizing

The whole process sections of the reciprocating kneader are divided into main feeding section, 1st melt homogenizing section, side feeding section, 2nd melt homogenizing section, vacuum and natural exhaust section, extrusion pressure building section, melt filtering section and the final pelletizing part.

According to the difference of the final product, the solid raw materials to be compounded are fed into the main machine in an optimal proportion through a specially-customized active feeding mechanism. Cenmen company can also flexibly configure multi-component metering institutions and centralized feeding system according to the actual needs to meet the needs of customers at all levels.

After the material is initially melted, the required liquid components are injected directly into the melt through a special hollow pin.

Because of the special mixing principle of the reciprocating kneader, Most of the heat energy for the material melting is provided by the shearing energy produced by the interaction between screw and pin, energy consumption is lower for per unit production.

The filler is added at the side feeding section of the material preliminary melting, so that the feeding efficiency is improved, the system temperature is reduced.

At the same time, in order to further improve the feeding effect, there is a natural exhaust port in the main feeding section and the side feeding section, so that the air entrained in the material can be discharged naturally, which improves the feeding efficiency and thus achieves the purpose of increasing the output of the main engine.

The raw materials of each component are further mixed in the second homogenization section, and then the volatile components and moisture in the melt are extracted by the vacuum exhaust mechanism arranged in the last processing area on the cylinder and then entered the pressure building section.

Depending on the different material processing process, Cenmen company can provide single screw extruder or melt pump as melt pressure building unit. The double-order design can carry out the process adjustment on the mixing section and the extrusion pressure section respectively, meeting various application at the maximum.

Characteristics of 4-flights reciprocating kneader:
Based on the matured 3-flights kneader technologies, Cenmen corp. newly introduced the leading 4-flights GWHS series reciprocating kneaders.
Upgraded the flights to be 4-flights from original 3-flights and re-designed the geometrical configuration of the flights and the pins structure, optimized the relative motion track between the flights and pins, which make the materials effective shearing greatly increased in the original processing conditions unchanged, meanwhile, the friction heat produced by single shearing has decreased significantly.

Output improved more than 250%

The actual operating maximum speed of the GWHS series is increased to 600 revolutions per minute while the temperature rise of the material remains essentially constant, The combination of the redesigned spiral configuration and the pin type results in a more stable material delivery efficiency and greater production of equipment.

Whole service life cost of the equipment has decreased significantly.

Compared with the traditional 3 flights reciprocating mixing unit, the output of the GWHS series reciprocating mixer is greatly improved, and the procurement cost of the equipment is kept unchanged, combined with more intelligent electrical control system and newly upgraded ergonomics design, the whole life cycle cost of the whole production line has been greatly reduced, which will bring long-term value return to users.

        Vertical feed screw
       Equipped with active feeding screw and hopper specially designed for different                 materials, it can be applied to the addition of all kinds of raw materials such as                 grain, slice, powder and fiber;
       Injection system
       Equipped with locking hollow pin connected to mixer, various liquid additives can be         injected into the required position according to different material processing                       requirements;
       Vaccum chamber/natural degassing chamber
       An exhaust port is reserved on the machine barrel, the vacuum exhaust chamber or         the natural gas exhaust chamber can be freely combined and assembled according         to different processing process requirements;
       Gear pump
       It is suitable for processing a low-viscosity melt, can be connected with a mixer                 barrel through a flange bolt, replacing the down stage single screw through the                 external drive motor pump;
                                                                                                 Screen changer
                                                                                                 According to the specific processing materials and corresponding process                                                                                                                   requirements, a customized net changing system can be selected to filter the melt.

                                                                                         Die face pelletizing system;
                                                                                                 Connected with outlet extruder or a melt pump flange, including a heatabletemplate,                                                                                                   pelletizing die head, drive motor and pelleting chamber;
                                                                                                 Under water pelletizing system
                                                                                                 Specially suitable for low viscosity melt pelletizing.
                                                                                                 Product conveying, processing and storage system
                                                                                                 Cenmen company has auxiliary granule conveying, cooling, drying and storage                                                                                                           system for each kind of pelletizing system.

Intelligent remote control system
PLC automatic interlock control for single production line: material supply to production line, equipping with movable probe and special transmission line are transmitted to the public control room through the signal converter host platform, achieving the effect of online real-time monitoring.
All production lines in production workshop are centralized for public control management. Carry out various functions such as data collection, production monitoring and management, etc. Synchronize with each production line to adjust procedures, operations, etc.
Through the special transmission line, the PLC control data of each production line in the production workshop of the public control management system is transmitted to the computer of the general office, adjust program, operation, etc synchronously with each production line to realize automation and information management.