Extrusion and/or pultrusion device and method

An extrusion- and/or pultrusion device for forming a profile product in a production direction, said device comprising:

• a rotating die, extending in a radial direction and a width direction, having two opposite first and second side walls and an outer circumferential surface extending in the width direction there between, wherein the rotating die comprises a first side portion in connection to the first side wall and a second side portion in connection to the second side wall and a mid-portion extending between the first and second side portions,
• and
• a profile definition zone having a longitudinal direction coinciding with the production direction, a height direction and the width direction being perpendicular to the height direction, comprising a through channel comprising a first channel section followed by a second channel section downstream the first channel section with reference to the production direction, wherein the rotating die is rotatable about an axis extending across the production direction and arranged to allow the outer circumferential surface to, while the rotating die rotates, exert a pressure onto a surface of a material when fed through the profile definition zone,
• wherein;
• the first channel section is circumferentially delimited by one or more walls and wherein
• the second channel section is circumferentially delimited by
• the circumferential surface of the rotating die and
• a channel portion comprising
• a counter-bearing opposite the rotating die, wherein an entire length of a surface of the counter-bearing contacted by the material being processed is parallel to the production direction and wherein a distance between the counter-bearing and the rotating die is not uniform throughout a length of the second channel section, and
• opposing first and second channel portion side walls between the rotating die and the counter-bearing
• wherein
• the first side portion comprises a first flange portion extending in the width direction and the radial direction with an extension in the radial direction exceeding the radial extension of an entire of the mid-portion and wherein the second side portion comprises a second flange portion extending in the width direction and the radial direction with an extension in the radial direction exceeding the radial extension of an entire of the mid-portion, or
• in that the first flange portion extends in a radial direction with an extension exceeding the radial extension of a part of the mid-portion, but that one part of the mid-portion has a radial extension exceeding the radial extension of the first flange portion, and wherein the second flange portion extends in a radial direction with an extension exceeding the radial extension of a part of the mid-portion, but that one part of the mid-portion has a radial extension exceeding the radial extension of the second flange portion.