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Convert grooved to smooth feed in 3 to 5 hours.


A new extruder feed section allows conversion from a grooved to smooth bore in three to five hours, says Macro Engineering & Technology Inc., Mississauga, Ont. Macro will show its Exxfeed modular feed sections for the first time at NPE NPE NullPointerException (Java)
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 in Chicago next month. Exfeed is available for Macro's MacroPlast single-screw extruders in 1.75- to 4-in. diam. A 2.5-in. model with Exxfeed section is available for trials in Macro's lab. Smooth and grooved versions use the same water cooling Water cooling is a method of heat removal from components. As opposed to air cooling, water is used as the heat transmitter. Water cooling is commonly used for cooling internal combustion engines in automobiles and electrical generators.  with automatic temperature control. Macro says grooved feed sections raise throughput and run at lower melt temperatures than a smooth bore of the same size. The grooved Exxfeed throat reportedly can process even VLDPE VLDPE Very Low Density Polyethylene  and mLLDPE at up to 50% higher outputs than a smooth bore. According to according to
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 Macro, a smooth throat is required to feed non-freeflowing materials like powdered resins, sticky elastomers, film fluff, and other regrind. Tel: (905) 507-9000 * PT Direct: 597VB

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Title Annotation:KEEPING UP WITH: Extrusion
Publication:Plastics Technology
Geographic Code:1CANA
Date:May 1, 2006
Words:156
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