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Stainless/Ceramic Sandwich Improves Pelletizer Die—January 2007

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, CDL says, allowing melt at up to 650 F to flow through the die holes and colder water down to 34 F to contact the cutting surface without polymer freeze-off. Also new is the Flex-Adjust automatic self-sharpening cycle, in which pneumatic pressure is applied by the rotating hub to the blades at intervals to sharpen the blades against the harder steel die surface. Tel: (630) 543-5240 . www.crown-cdl.com

C.D.L. Technology
511 Vista Ave. Addison, IL 60101
Phone (630) 543-5240 Fax (630) 543-4656

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