Krauss-Maffei: Thick foamed PVC sheet

High-output foamed PVC sheet lines are now able to cool and control extrudate up to 1.25-in. thick, vs. a maximum of 0.8 in. before, says Krauss-Maffei Corp., Florence, Ky. The process combines the German company’s KMD164-26 (6.6-in. diam.) counter-rotating twin-screw extruder with a pair of special pre-cooling rolls to skin the hot foam before it reaches the chill rolls. Krauss-Maffei has delivered several of the new lines, including four to the U.S.

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