SDJ Two Stage Twin Screw Compounding Extruder For High Capacity Devolatilization

SDJ two stage (twin screw/single screw) extruder unit.

Structure mode: the 1^st stage is TSB/TSH high speed co-rotation twin screw compounding extruder, the second stage is SE series low speed single screw extruder, both are T-shape distributed, forming a two stage compound unit.

Principle and application:

• Combine and complement the advantages of co-rotation twin screw and single screw. Twin screw force conveying, high efficiency plastify compounding and shear dispersion, and back pressure reflux without die head avoid high temperature shear overheating; Single screw high pressure extrusion, but low speed shear also avoid overheating contradiction.
• l The combination of twin screw and single screw resolves the process engineering function, increases the variable of independent operation. It is beneficial to the step by step optimization of all process engineering.
• l Higher efficiency and output.
• l It is widely used for the thermal sensitive material system and high capacity devolatilization, such as PVC, XLPE, HFFR cable, shielding cable, shoe sole foaming material and the treatment after rubber dehydration, etc.

The core extruder equipment includes parallel twin screw compounding extruder, reciprocating

compounding kneader, double rotor compounding extruder, SCP high viscosity self cleaning

reactor and large capacity devolatilizer, etc.

At the same time, based on the above main extruder, the design and manufacture of a

complete set of compounding pelletizing production line equipment and compounding

extrusion forming production line equipment can be realized. It is mainly used in the fields

of engineering plastics, modified plastics, wire and cable materials, rubber, packaging,

building medical chemical industry, chemical fiber textile, household appliance and other

industries (see the application case for details).

The existing factory area of the company is 46500 m2 (of which the parent company is

38000m2, and the subsidiary (Nanjing Cenmen) is 8500m2), The core parts and system

of the extruder are designed and manufactured by the company, such as barrel, screw,

gear box, etc. The company has advanced NC machining center, NC screw grinder,

CNC machine tool and other machining equipment. Equipped with Swiss imported

three-coordinate detector and Japanese imported spectral detector and other

advanced inspection and testing equipment. There are complete quality control means

and system from processing to testing, which fully ensure the stability and reliability of

product quality.

The extruders produced by Cenmen company are exported to nearly 40 countries, such as

Germany, Russia, belarus, Japan, Korea, Israel, Ukraine, magiddon, Iran, Thailand, Indonesia,

Brazil, India, Mexico, South Africa, etc.