NRM / Davis Standard 1.5″ Pacemaker IV extruder, S/N 19218, S/O 52660. 24:1 L/D air cooled electrically heated barrel with a 42″ to 44-3/4″ adjustable centerline. Driven by a 10 HP 1750/2300 RPM DC motor with Reliance variable speed drive, 6 heat zones with a Watlow 93 temperature controls (3 are missing). Includes Conair Microline vacuum loader with a 1.5″ inlet.