parts manufactured using the twin-sheet process are
impressive for their extreme stability and because
the two sides can be shaped or coloured differently.
DUROtherm has three twin-sheet systems, including
two carousel thermoforming systems. These are
designed for large series production and are notable
for their high pressing force and fast cycle times.
With sizes up to 3200 x 1800 mm, these systems are
among the largest twin-sheet systems in Europe.
In the twin sheet process, two firmly clamped plastic panels are heated on both sides in separate ovens. The panels are then molded one after another by evacuating the air between the mold and the hot plastic sheet. Subsequently, while the
thermoformed parts are still warm, they are welded firmly together using pressure. A flow of compressed air is then used to release the finished twin molded part from the mold.