UNION is the only company that produces the most complete range of extruders for foam boards, ensuring high quality standards with the ability to build at its premises in S.Vittore Olona – MI, all the extrusion lines.
UNION lines depend on the required outputs provided by the customers.
If the output is lower than 500 kg/h can be utilized a slow co-rotating twin screw extruder; if it’s higher, up to 2000 kg/h it can be utilized the Tandem system because it’s necessary to separate the first part of the process (melt, mixing and expanding gas injection) into the primary extruder with a high revolutions number, from the second part (cooling of the melted material) into the secondary extruder with low screw revolutions.

Technical Data Sheet
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