Acrison model 105Z-F volumetric screw feeder, 2.5″ OD, 304 stainless steel auger and cylinder. Carbon steel material hopper powered by a 1HP 90V 1,725 RPM DC motor through a 15:1 gearbox. Silicone controlled rectifier variable speed DC controller is not included. Bindicator, S/N 811097, mounted on the hopper.