Abstract: A device for the extrusion of plastic profiles with an extruder for the melting and delivery of a plastic material and with an extrusion die for defining the profile geometry, wherein a profile slot corresponding to the profile to be extruded and being defined by an outer periphery and by at least one arbor is provided in the extrusion die. The profile tuning is made easier by having a means for operational change of the profile slot's thickness provided in at least one predetermined area between the arbor and the outer periphery as well as a means for cooling selected areas of the extruded profile provided at the exit of the die.

Abstract: The invention relates to a device for the extrusion of plastic profiles with an extruder for the melting and delivery of a plastic material and with an extrusion die for defining the profile geometry, wherein a profile slot corresponding to the profile to be extruded and being defined by an outer periphery and by at least one arbor is provided in the extrusion die. The profile tuning is made easier by having a means for operational change of the profile slot's thickness provided in at least one predetermined area between the arbor and the outer periphery as well as a means for cooling selected areas of the extruded profile provided at the exit of the die.

Abstract: The invention relates to an apparatus for cooling and calibrating extruded plastic profiles with a trough which is provided downstream of a dry calibrating device and has a water bath through which the profile is guided, with plates being arranged in the trough between the face walls in order to calibrate the profile under the influence of negative pressure. In order to achieve a high production speed with a low amount of expenditure it is proposed that a sleeve encompassing the profile is provided in a section of the trough, which sleeve guides at least in a zone of the main body of the profile and that the sleeve is provided with a distance to the face walls in the longitudinal direction.