Plastic material that has been melted and degassed in the extruder is processed into continuous profiles on the calibrating table. Typically, these profiles are made into pipes or various technical profiles for windows, cable ducts, medical tubing, etc. The plastic material is suctioned into a mold. For cooling and lubrication purposes, a film of water is generated between the inside of the mold and the continuous workpiece and is continuously extracted by the vacuum pump.