-generation system for compounding of wood and other natural fiber-filled plastic composites. Called FibrePlast and made and marketed by Cincinnati Milacron, this updated piece of equipment can help a processor ensure his feedstock is suitable for an extruder.
Cincinnati Milacron (Cincinnati, OH) has sold more than 350 extrusion lines for extrusion of natural fibers/ plastics applications since it began offering machinery for the purpose in the early 1990's. The company offers both conical and parallel counter-rotating twin-screw extruder lines for these applications, enabling it to handle various matrix materials.
The FibrePlast system is designed to bring together all of the materials that make up the wood or other natural fiber plastic composite formulation, and prepare a suitable feed stock for the extruder. FibrePlast is designed to process PP, HDPE and PVC based formulations, incorporating both virgin and/or recycled plastic materials. The system reduces the moisture content of the fiber, mixes and equally distributes the fiber content and all of the additives that make up the formulation.
FibrePlast is available in two different sizes providing mixing capacity up to 2280 kg/hr (5000 lbs/hr) (based on an average formulation of 50% PP / 50% wood flour). The system utilizes blends the material at a high intensity, and then cools and/or agglomerates the finished feed material. It is capable of extracting moisture from a maximum level of 12% down to approximately 1% moisture.
For polyolefin-based composites, the system increases particle size bulk density for better extruder feeding and provides a finished feed stock in agglomerate form suitable for processing or storage. For PVC-based formulations, the end result is very similar to the consistency of dry blend powder compounds.