Dual compound extruder apparatus with rotatable head

An apparatus for forming a coextruded strip of a first compound A and a second compound B, the apparatus comprising:

• a first extruder in fluid communication with a first gear pump for processing a first compound A;
• and
• a second extruder in fluid communication with a second gear pump for processing a second compound B, wherein an outlet from the first gear pump is in fluid communication with a first channel of a coextrusion nozzle, and an outlet from the second gear pump is in fluid communication with a second channel of the coextrusion nozzle, wherein the first and second compounds are joined under pressure in a coextrusion zone in the coextrusion nozzle, wherein the nozzle is mounted on a rotatable head that is rotatable about a Z axis,
• wherein the outlets from the first and second gear pumps respectively feed into first and second outlet channels, and the first and second outlet channels respectively feed into first and second transition channels, and the first and second transition channels each have a horizontal portion followed by a vertical portion prior to entering the rotatable head.