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With the tenet of “be sincere, be scientific”, Nanjing Chengke company focuses on the works of R&D , design, sale and after-sale for co-rotating & counter-rotating twin-screw extruders, tandem compounding lines and single-screw extruders.
Chengke was founded by senior engineers in twin-screw processing，we have advanced management systems and high-effective operation teams. Our business concept is to analyze the problems, to offer the best solutions and to provide custom mouldings. High-beginning, high-quality, and optimal designs are our company’s characteristics, which can meet the first-class product quality standard as other companies worldwide.
we focus on the works of twin screw:
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Compounding extruder is a process
Compounding extruder is a process that mixes one or more polymers with additives to give plastic compounds. The twin screw extruder may have parallel or conical screws, and these screws may rotate in the same direction or in opposite directions to achieve varying degrees of mixing shear.
They are used to compound heat sensitive materials such as PVC, processing of difficult-to-feed materials, reactive processing, and for plastic devolatilization. Pigments, additives, and fillers can be dispersed and distributed using corotating twin screw extruder.
Compounding is mixing and dispersing additives, fillers, pigments, stabilizers, flame retardants, polymer reinforcements, antioxidants, inhibitors, surface modifiers, foaming agents, processing aids into a melted polymer twin screw extruder mix, devolatilize and perform reactions in a continuous manner.