Crown's no-freeze die keeps pellets perfect. The newly developed underwater pelletizing dies from this provider of equipment for compounding, plastics recycling, pipe extrusion, profile extrusion and sheet extrusion, eliminate die-hole freeze off. The pelletizer die designs incorporate 15% patented additives, boron, and ceramic in a medium-grain tungsten carbide material.
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A patent-pending underwater pelletizer demonstrated by Crown Machine (Addison, IL) produces consistent, perfectly shaped pellets and eliminates die-hole freeze-off with this new design.
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New "Anti-Freeze" die face for underwater pelletizers from CROWN/CDL Technology Inc. Addison, Ill. has a 0.200-in. titanium carbide/stainless-steel surface layer braised onto 0.100 in. of pure zirconium ceramic, which is in turn braised onto the stainless-steel die body. The multi-material sandwich tolerates higher and lower temperatures than other die-plate materials,
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The new CROWN Underwater Pelletizing system provides advantages that surpass those of any competitive pelletizer on the market today. Innovative patented designs eliminate historical pelletizing issues such as die-hole freeze off, fines generation, polymer leakage, and flow into the water chamber and piping. These problems are solved through unique design approaches with the pelletizer’s water chamber, dies, cutter hub and cutter blades.
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