1991 Davis Standard 4.5" 30:1 extruder for sale. Features include an electrically heated air-cooled barrel, 321 hp gearbox, 150 hp DC motor, and continuous screen changer.
Used 4.5" Davis Standard 30/1 L/D Extruder, Electrically Heated Air Cooled Barrel. Includes gearbox with 17.36/1 gear ratio rated at 321 hp. Serial
#M-3315, SO #05432. New 10/1991. 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
includes: Used 4.5" (121mm) Kryenborg (Nordson) continuous screen changer, model K-SWE-121, dual 4.5" breaker plates, rated 200-500 kg/hr, on cart. With hydraulic pump
