Measure and examine extruded products to locate defects and to check for conformance to specifications, adjusting controls as necessary to alter products.

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Determine setup procedures and select machine dies and parts, according to specifications.

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Start machines and set controls to regulate vacuum, air pressure, sizing rings, and temperature, and to synchronize speed of extrusion.

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Reel extruded products into rolls of specified lengths and weights.

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Install dies, machine screws, and sizing rings on machines that extrude thermoplastic or metal materials.

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Change dies on extruding machines, according to production line changes.

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Clean work areas.

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Troubleshoot, maintain, and make minor repairs to equipment.

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Weigh and mix pelletized, granular, or powdered thermoplastic materials and coloring pigments.

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Test physical properties of products with testing devices such as acid-bath testers, burst testers, and impact testers.

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Load machine hoppers with mixed materials, using augers, or stuff rolls of plastic dough into machine cylinders.

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Maintain an inventory of materials.

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Adjust controls to draw or press metal into specified shapes and diameters.

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Replace worn dies when products vary from specifications.

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Select nozzles, spacers, and wire guides, according to diameters and lengths of rods.

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