1991 Davis standard 4.5" 30:1 extruder

Used 4.5" Davis Standard 30/1 L/D Extruder, Electrically Heated Air Cooled Barrel. Includes gearbox with 17.38/1 gear ratio rated at 321 hp. Serial #L3206, SO #03643. New 1/1991. Includes continuous style screen changer, 42" air cooled centerline barrel height and temperature control panel but without temperature controllers. Driven by 150 hp DC motor with SCR control.

There is a vented barrel, and 2 stage screw available for this extruder.

https://www.markonemachinery.com/listings/6592323-used-davis-standard-vented-barrel-and-screw-for-4-5-extruder