Durex Industries, a division of Durex International Corp., said its cast-in heaters for extruder barrels come in liquid- or air-cooled options.
Constructed from bronze or alloy, the cast-in heaters have a rugged tubular heating element that distributes heat evenly throughout the casting. Durex, of Cary, Ill., precision machines the inner diameter so it fits exactly to the outside of the barrel.
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