>> Processing and forming in one work step.
Direct extrusion / inline compounding
Direct extrusion or in-line compounding enables the production of semi-finished products such as films, plates, tubes or profiles in one process step. The intermediate pelletizing typical for plastics and other products is omitted in inline compounding, the investment and operating costs and the energy requirements of the production process drop drastically as a result. Some products can only be manufactured at all today because of single-stage direct extrusion.
The inline compounding handles a very complex production process in which the quality of the end product is the all-decisive factor. With the long years of experience and extensive process and system competence of our specialists, our direct extrusion plants achieve first class results. Every one of Coperion’s inline compounding plants features smoothly interacting process steps, gentle product handling with maximum productivity and maximum efficiency.
Typical set-up of a system for direct extrusion or inline compounding
Extruders for bi-axial oriented film plants
The product
Oriented films for the packing industry
Foils for the production of 35mm and X-ray film, audio, video and data tapes
Capacitor films
Battery separation films
Films for LCD screens
The raw materials
Base polymers PE, PP, PET, PEN, PA, PS, PLA
Fillers
Additives and pigments
Processing PET pellets and recycled PET without pre-drying directly into thermoforming films
The product
Direct processing of polyethylenterephthalate (PET) in foils or fibers
The raw materials
New PET
PET foils and punching waste
Ground and washed PET bottles
Additives and pigments
Direct extrusion for the production of Foamed and cross-linked films
The product
Special foils of polypropylene (PP) or polyethylene (PE) for numerous applications in the automobile industry, in leisure and sport activities or in machine and equipment construction
Soft touch films for dashboard panels
Insulating mats
Noise-damping foam between steel sheets
The raw materials
Base polymers PE, PP, EPDM, EVA
Chemical propellants
Crosslinking agents
Foaming agents
Additives and pigments
Direct extrusion for the production of floor coverings
The product
Floor coverings with PVC
PVC-free floor coverings
Direct extrusion plants from Coperion can process both PVC and PVC-free floor coverings.
The raw materials
PP / EVA + 40-50% chalk or talcum
PVC + 20% softeners + 40-50% chalk or talcum