EXTRUSION: Low-Volume, Adjustable Crosshead for PVC Cable

Developed with a customer as an alternative to a tandem line.

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The Series 725 from Guill Tool, W. Warwick, R.I. is a co-extrusion crosshead design for tray cable applications. With all stainless steel construction, Series 725 offers processors advantages that include the patented Guill Seal Right system of self-aligning tapered deflector and body design.  

Series 725 was developed by Guill in partnership with a customer to convert a production line from a tandem arrangement with two heads a distance apart into a co-extrusion line with a single head applying both layers of PVC in a single operation.  The efficiency and improved profit potential from such a configuration is substantial, according to Guill.  

Other benefits provided to processors by this new co-extrusion crosshead include a considerably shorter changeover time, less scrap with a single head setup, improved product quality from the increased adhesion between layers, as melt adheres to melt rather than extrudate, plus the inner layer is not exposed to the environment, allowing contaminates between the layers.  

Additional features of this new crosshead include multi-port spiral flow, easy disassembly and restart, positive seals for leak elimination, adaptable to all extruder brands, max. thru-core of 1.750 in. and max. die ID of 2 in., first layer fixed and second adjustable, the patented Guill Feather Touch concentricity adjustment, vacuum port and the ability to accept two extruders from the same side via the heated manifold assembly. 

Series 725 is furnished with a tool kit and detailed operator’s instruction manual