UNION extrusion lines for XPS sheet are equipped with a low speed co-rotating twin screw extruder for an hourly production up to 350 kg and with a Tandem system for an hourly production up to 700 kg.The circular extrusion die features with external regulation of opening lips.
The calibrator is composed by a cooling can for cooling the inside part of the sheet and a cooling ring for cooling the external part of the sheet. The XPS sheet obtained is winded on a pneumatic expansion shaft, directly controlled by a motor with inverter, type Servosystem, complete with gearbox.The lines can be integrated with lamination or coating systems able to produce high technological multilayer sheets.

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